CN115411492B

CN115411492B - Antenna assembly and electronic equipment

Info

Publication number: CN115411492B
Application number: CN202110582434.7A
Authority: CN
Inventors: 吴小浦
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2025-09-09
Anticipated expiration: 2041-05-26
Also published as: CN115411492A; WO2022247378A1

Abstract

The embodiment of the application discloses an antenna assembly and electronic equipment. The antenna assembly comprises a first antenna, a second antenna, an antenna connecting body, a first matching circuit and a second matching circuit, wherein a first gap is formed between a first antenna radiator and a second antenna radiator in the first antenna, the first antenna radiator comprises a first coupling end and a first grounding end, the second antenna radiator comprises a second coupling end and a second grounding end, the first antenna radiator is connected with the first matching circuit through the first grounding end to be grounded, a third antenna radiator in the second antenna comprises a first free end and a third grounding end, the third antenna radiator is connected with the second matching circuit through the third grounding end to be grounded, the antenna connecting body is respectively connected with the first grounding end and the third grounding end, a first feed point is arranged on the first antenna radiator, and a second feed point is arranged on the third antenna radiator, so that the common radiator of the first antenna and the second antenna is realized, and the frequency band covered by the antenna assembly is improved.

Description

Antenna assembly and electronic equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to an antenna assembly and an electronic device.

Background

In order to solve the requirements of the new generation of mobile communication, such as the fifth generation of new wireless (5th generation new radio,5G NR) communication, with high transmission rate, more and more electronic devices with communication functions, such as mobile phones, need to be provided with a plurality of antenna assemblies.

In order to improve the signal transceiving performance of the electronic device at different frequencies, the antenna assembly on the electronic device is generally required to generate more resonance modes. Currently, the antenna assembly generally needs to form a plurality of breaks on the metal body, so as to form a plurality of antenna units, thereby generating a plurality of resonance modes. However, the increase in the number of the breaks formed in the metal body may affect not only the communication performance of the antenna assembly but also the overall appearance structure of the electronic device.

Disclosure of Invention

In a first aspect, an embodiment of the present application provides an antenna assembly, including:

a first antenna comprising a first antenna radiator and a second antenna radiator, a first gap being present between the first antenna radiator and the second antenna radiator;

A second antenna comprising a third antenna radiator;

An antenna connector;

a first matching circuit and a second matching circuit;

The first antenna radiator comprises a first coupling end and a first grounding end, the second antenna radiator comprises a second coupling end and a second grounding end, the first coupling end and the second coupling end are respectively positioned at two sides of the first gap and are coupled through the first gap, the first grounding end is provided with a first grounding point, the second grounding end is provided with a second grounding point, and the first antenna radiator is connected with the first matching circuit through the first grounding point so as to be grounded;

The third antenna radiator comprises a first free end and a third grounding end, a third grounding point is arranged at the third grounding end, the third antenna radiator is connected with the second matching circuit through the third grounding end so as to be connected with the ground system, and the antenna connector is respectively connected with the first grounding end and the third grounding end;

The first antenna radiator is provided with a first feed point which is used for being connected with a first feed source;

and a second feed point is arranged on the third antenna radiator and is used for being connected with a second feed source.

It can be seen that, first, since there is a first gap between the first antenna radiator and the second antenna radiator in the first antenna, there is a coupling capacitance between the first gap and the first antenna radiator, i.e., the first antenna radiator and the second antenna radiator are common-caliber, so that a plurality of resonance modes of the first antenna are generated by the excitation of the first feed source. Second, a third antenna radiator in the second antenna generates a plurality of resonant modes of the second antenna through excitation of the second feed source. Finally, the first antenna and the second antenna are connected through the antenna connector, so that the co-radiator of the first antenna and the second antenna is realized, the frequency band covered by the antenna assembly is further improved, the transmission requirement of the antenna assembly for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

In a second aspect, an embodiment of the present application provides an electronic device, including an antenna assembly, where the antenna assembly includes a first antenna, the first antenna includes a first antenna radiator and a second antenna radiator, and a first gap exists between the first antenna radiator and the second antenna radiator;

The first gap is positioned on a first side of the electronic device, the distance from the first gap to a second side of the electronic device is larger than 30mm, the distance from the first gap to a third side of the electronic device is larger than 30mm, the second side is adjacent to one side of the first side, and the third side is adjacent to the other side of the first side;

the first antenna radiator is provided with a first feed point which is used for being connected with a first feed source.

It can be seen that, by limiting the first gap on the first side of the electronic device, the distance from the first gap to the second side of the electronic device is greater than 30mm, and the distance from the first gap to the third side of the electronic device is greater than 30mm, so that when a user holds the second side and the third side of the electronic device, the hand of the user will not touch or shield the first gap on the first side, thereby effectively avoiding the hand of the user from shielding the first gap, ensuring the normal operation of the first antenna, and further enabling the electronic device applied by the antenna assembly to have better communication effect.

In addition, the antenna component of the embodiment of the application has smaller size and fewer gaps, so that the antenna component is beneficial to reducing the structural space occupied by the antenna component in the electronic equipment when the antenna component is applied to the electronic equipment, reducing the layout difficulty of the antenna component in the electronic equipment, improving the whole stacking of the electronic equipment, reducing the number of gaps formed on the electronic equipment due to the layout of the antenna component and ensuring the integrity of the whole appearance structure of the electronic equipment.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the figures described below are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of still another electronic device according to an embodiment of the present application;

Fig. 3 is a schematic diagram of an electronic component integrated on a motherboard of an electronic device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a matching network with a combination of capacitance and inductance according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first antenna according to an embodiment of the present application;

fig. 7 is a schematic diagram of distribution of S parameters of a first antenna according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a second antenna according to an embodiment of the present application;

Fig. 9 is a schematic diagram of distribution of S parameters of a second antenna according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of yet another antenna assembly according to an embodiment of the present application;

Fig. 11 is a schematic structural diagram of yet another antenna assembly according to an embodiment of the present application;

Fig. 12 is a schematic diagram of distribution of S parameters of a third antenna according to an embodiment of the present application;

Fig. 13 is a schematic structural diagram of yet another antenna assembly according to an embodiment of the present application;

Fig. 14 is a schematic structural diagram of yet another antenna assembly according to an embodiment of the present application;

FIG. 15 is a schematic view of a further proximity sensor operation provided in accordance with an embodiment of the present application;

Fig. 16 is a schematic distribution diagram of S parameters of each of a first antenna, a second antenna, and a third antenna according to an embodiment of the present application;

fig. 17 is a schematic diagram showing the distribution of the radiation efficiency and the total efficiency of the first antenna, the second antenna and the third antenna according to the embodiment of the present application;

Fig. 18 to 24 are schematic structural views of yet another antenna assembly according to an embodiment of the present application;

Fig. 25 is a schematic structural view of a first antenna including a fifth antenna radiator according to an embodiment of the present application;

Fig. 26 is a schematic diagram showing the distribution of S parameters of a first antenna including a fifth antenna radiator according to an embodiment of the present application;

Fig. 27 is a schematic diagram showing a distribution of radiation efficiency and total efficiency of a first antenna including a fifth antenna radiator according to an embodiment of the present application;

Fig. 28 to 39 are schematic structural views of an antenna assembly applied to an electronic device according to an embodiment of the present application;

Fig. 40 is a schematic distribution diagram of an antenna assembly, a proximity sensor and a detection circuit applied to an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

In the present application, unless specifically stated and limited otherwise, the term "connected" shall be construed broadly, and for example, "connected" may be a fixed connection, an electrical connection, a removable connection, an elastic connection, a direct connection, an indirect connection via an intermediary, a spaced connection, etc., without any particular limitation.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In order to better understand the technical solutions of the embodiments of the present application, concepts that may be related to the embodiments of the present application are described below.

The antenna assembly in the embodiment of the application can be applied to an electronic device, which can be an electronic device with an antenna assembly or a communication module with an antenna assembly, can be various handheld devices with an antenna assembly, vehicle-mounted devices, wearable devices, computing devices or other devices connected to a wireless modem, and can also be various Types of Stations (STAs), access Points (APs), user Equipment (UE), mobile Stations (MSs), terminal devices (TERMINAL DEVICE), session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal DIGITAL ASSISTANT, PDA), personal computers (personal computer, PC), relay devices, computers supporting 802.11 protocols, terminal devices supporting 5G communication systems, and terminal devices in future evolution public land mobile communication networks (public land mobile network, PLMN), etc. For convenience of explanation, the following will take an electronic device as an example of a mobile terminal device, and refer to fig. 1 and fig. 2.

In fig. 1 and 2, the electronic device 100 may include a display module 110, a bezel assembly 120, a back cover assembly 130, and a main board 140. The frame assembly 120 is located between the display module 110 and the rear cover assembly 130 and around the rear cover assembly 130, and the main board 140 is located in a containing space formed by the display module 110, the frame assembly 120 and the rear cover assembly 130. It should be noted that, the electronic device 100 shown in fig. 1 and fig. 2 may further include other modules and components, and embodiments of the present application are not limited in particular.

Specifically, the display module 110 may be used for displaying images and colors, and may be a Liquid Crystal Display (LCD) screen (liquid CRYSTAL DISPLAY), an Organic Light Emitting Diode (OLED) screen (LIGHT EMITTING DISPLAY), a Thin Film Diode (TFD) screen, a thin film field effect transistor (thin film transistor) screen, or the like.

Specifically, the bezel assembly 120 may be made of metal, such as magnesium alloy, stainless steel, etc., and may be part of an antenna assembly, that is, the bezel assembly 120 may be part of an antenna radiator.

Specifically, the rear cover assembly 130 may be a conductive shell, a metal shell, such as magnesium alloy, stainless steel, or a nonconductive shell, a plastic shell, a ceramic shell, a carbon fiber shell, or a glass shell, a shell structure with a conductive material and a nonconductive material, or a shell structure with a metal and a plastic material. Further, the rear cover assembly 130 may be formed by injection molding a metal middle plate, and injection molding the metal middle plate to form a housing structure of a plastic middle plate. Further, the rear cover assembly 130 may be formed by injection molding a magnesium alloy middle plate, and injection molding the magnesium alloy middle plate to form a housing structure of the plastic middle plate.

In embodiments of the present application, the bezel assembly 120 may have an antenna aperture thereon, and the antenna aperture may be filled with plastic or other insulating medium to ensure the integrity of the bezel assembly 120 as a whole.

Specifically, the display module 110, the bezel assembly 120, and the back cover assembly 130 together form a receiving space that may be used to receive the motherboard 140, the antenna assembly, and other components or modules, such as a receiver, a camera module, an audio interface, a fingerprint recognition module, a sensor, a speaker, a battery, and the like. Meanwhile, various electronic components may be integrated on the main board 140. Further, the main board 140 may be a printed circuit board (printed circuit board, PCB), a flexible circuit board (flexible printed circuit, FPC), or the like.

The electronic components integrated on the motherboard 140 are described below, referring to fig. 3. Fig. 3 is a schematic diagram of an electronic component integrated on a motherboard of an electronic device according to an embodiment of the present application. The electronic components integrated on the motherboard 140 may include a processor 310, an antenna, a communication module 320, a power management module 330, and a memory 340.

In the embodiment of the present application, the communication function of the electronic device 100 may be implemented by an antenna, a communication module 320, a modem processor, a baseband processor, and the like. Wherein an antenna in the electronic device 100 is used for transmitting and receiving electromagnetic wave signals. Meanwhile, the antenna in the electronic device 100 may be used to cover a single or multiple communication bands, for example, the antenna may cover 1000MHz to 3000MHz band (i.e., medium-high frequency MHB band in LTE or NR), 3000MHz to 10000MHz band (i.e., ultra-high frequency UHB band in LTE or NR), 3300MHz to 4120MHz band (i.e., N77 band in 5G), 3300MHz to 3800MHz band (i.e., N78 band in 5G), 4140MHz to 5000MHz band (i.e., N79 band in 5G), 2.4GHz, 5GHz, or 6GHz band (i.e., WIFI band), and 1575MHz (i.e., GPS-L1 band).

In particular, the processor 310 may include a central processor (central processing unit, CPU), an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a video codec, a digital signal processor (DIGITAL SIGNAL processor, DSP), a baseband processor, a neural-network processor (neural-network processing unit, NPU), and the like. In addition, the processor 310 utilizes various interfaces and lines to connect various components or modules within the overall electronic device 100 and by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 340 and invoking data stored in the memory 340 to perform various functions of the electronic device 100 and to process data.

Specifically, the communication module 320 may provide solutions for wireless communication including 2G/3G/4G/5G, bluetooth (BT), wireless local area network (wireless local area networks, WLAN), wireless fidelity (WIRELESS FIDELITY, WIFI) network, global navigation satellite system (global navigation SATELLITE SYSTEM, GNSS), near field communication (NEAR FIELD communication, NFC), frequency modulation (frequency modulation, FM), infrared (IR), and the like, applied to the electronic device 100. The communication module 320 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), and the like. The communication module 320 may receive electromagnetic waves from an antenna, perform filtering, amplifying, etc. on the received electromagnetic waves, and transmit the electromagnetic waves to a modem processor for demodulation. The communication module 320 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna to radiate. In some possible examples, at least some of the functional modules of the communication module 320 may be provided in the processor 310. In some possible examples, at least some of the functional modules of the communication module 320 may be provided in the same device as at least some of the modules of the processor 310.

Specifically, the power management module 330 is used to connect the battery to the processor 310. The power management module 330 receives input from the battery to power the processor 310, the communication module 320, the memory 340, and the like. The power management module 330 may also be used to monitor battery capacity, battery cycle times, battery health (leakage, impedance), etc.

In particular, memory 340 may be used to store computer-executable program code that includes instructions. In addition, memory 340 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash memory (universal flash storage, UFS), and the like.

In combination with the above description, the antenna assembly according to the embodiment of the present application is specifically described below.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an antenna assembly according to an embodiment of the application. The antenna assembly 400 may be applied to the electronic device 100. The antenna assembly 400 may include a first antenna, a second antenna, an antenna connection 431, a first matching circuit 432, and a second matching circuit 433. Wherein, the

The first antenna may include a first antenna radiator 411 and a second antenna radiator 412, with a first gap 413 between the first antenna radiator 411 and the second antenna radiator 412;

the second antenna may include a third antenna radiator 421;

The first antenna radiator 411 may include a first coupling end (C) and a first ground end (B), the second antenna radiator includes a second coupling end (D) and a second ground end (E), the first coupling end (C) and the second coupling end (D) are respectively located at both sides of the first slit 413 and coupled through the first slit 413, the first ground end (B) is provided with a first ground point (GND 1), the second ground end (E) is provided with a second ground point (GND 2), and the first antenna radiator 411 is connected to the first matching circuit 432 through the first ground end (B) to ground the system;

the third antenna radiator 421 may include a first free end (G) and a third ground end (H), the third ground end (H) is provided with a third ground point (GND 3), the third antenna radiator 421 is connected to the second matching circuit 433 through the third ground end (H) to be grounded, and the antenna connector 431 is connected to the first ground end (B) and the third ground end (H), respectively;

The first antenna radiator 411 may be provided with a first feeding point (a) which may be used to connect the first feed 414;

The third antenna radiator 421 is provided with a second feeding point (F) which may be used for connecting to the second feed 422.

Specifically, the first antenna radiator 411 may be any one of a flexible circuit board (Flexible Printed Circuit, FPC) antenna radiator, a Laser Direct Structuring (LDS) antenna radiator, a Printed Direct Structuring (PDS) antenna radiator, and a metal branch. Similarly, the second antenna radiator 412 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

In the first antenna of the antenna assembly 400, since the first antenna radiator 411 and the second antenna radiator 412 are disposed at intervals (i.e., a first gap 413 exists between them), that is, the first antenna radiator 411 and the second antenna radiator 412 are commonly configured, the first gap 413 is coupled, so that the first antenna radiator 411 and the second antenna radiator 412 are connected by capacitance. The capacitance of the capacitor may be determined by the relative area of the end face of the first antenna radiator 411 at the end (C), the relative area of the end face of the second antenna radiator 412 at the end (D), the distance between CDs, and the medium filled in the first gap 413.

In addition, when the antenna assembly 400 is in operation, the excitation signal generated by the first feed 414 may be coupled to the second antenna radiator 412 via the first antenna radiator 411. Accordingly, the second antenna radiator 412 may generate a plurality of resonant modes of the first antenna through coupling of the first slot 413. It can be seen that when the first antenna transmits and receives electromagnetic wave signals, not only the first antenna radiator 411 but also the second antenna radiator 412 may be utilized, thereby achieving antenna communication performance of the antenna assembly 400. Meanwhile, the resonance mode of the antenna assembly 400 is increased through one slot (first slot), so that the antenna assembly 400 can cover a plurality of frequency bands, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

Specifically, the third antenna radiator 421 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

It should be noted that, in the second antenna of the antenna assembly 400, the second feed 422 may be used to generate an excitation signal, and the excitation signal is loaded on the third antenna radiator 421, so that the third antenna radiator 421 radiates an electromagnetic wave signal. Since the FH segment on the third antenna radiator 421 may be equivalent to a small inductance to ground, the FG segment on the third antenna radiator 421 may generate a resonant mode through excitation of the second feed 422. Similarly, the GH section on the third antenna radiator 421 may generate a resonant mode by excitation of the second feed 422. Thus, the third antenna radiator 421 may generate a plurality of resonant modes of the second antenna by excitation of the second feed 422.

It can be seen that, by the second antenna in the antenna assembly 400, the resonant mode of the antenna assembly 400 is increased, so that the antenna assembly 400 covers multiple frequency bands, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the spatial multiplexing capability is improved.

Specifically, the antenna connection body 431 may be used to connect the first antenna and the second antenna.

It should be noted that, in the embodiment of the present application, the antenna connector 431 connects the first antenna and the second antenna, so as to implement a co-radiator of the first antenna and the second antenna. Therefore, when the first antenna works, not only the first antenna radiator 411 and the second antenna radiator 412 of the first antenna can be utilized to transmit and receive electromagnetic wave signals, but also the third antenna radiator 421 of the second antenna and the newly added antenna connector 431 can be utilized to transmit and receive electromagnetic wave signals, so that the frequency band covered by the antenna assembly 400 is improved, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved. Similarly, when the second antenna works, not only the third antenna radiator 421 of the second antenna can be used to transmit and receive electromagnetic wave signals, but also the first antenna radiator 411 and the second antenna radiator 412 of the first antenna and the newly added antenna connector 431 can be used to transmit and receive electromagnetic wave signals, so that the frequency band covered by the antenna assembly 400 is improved, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

In addition, the first antenna and the second antenna are connected through the antenna connection body 431, and the embodiment of the present application may consider the second antenna radiator 412 as the antenna unit 1, and the first antenna radiator 411, the third antenna radiator 421, and the antenna connection body 431 as the antenna unit 2. Therefore, the first feed 414 is connected to the first feeding point (a) of the antenna unit 2, the second feed 422 is connected to the second feeding point (F) of the antenna unit 2, and the antenna unit 2 is grounded under the first ground terminal (B) and the third ground terminal (H) through the first matching circuit 432 and the second matching circuit 433, respectively, thereby advantageously improving the radiation efficiency of the antenna assembly 400.

Specifically, the antenna connection body 431 may have the same material as the first antenna radiator 411 or the third antenna radiator 421.

Specifically, the antenna connector 431 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

Specifically, the first antenna radiator 411, the second antenna radiator 412, the third antenna radiator 421, and the antenna connection body 431 may be coplanar.

For example, if the first, second, third and third antenna radiators 411, 412, 421 and 431 are metal patches or the like, the first, second, third and third antenna radiators 411, 412, 421 and 431 may be coplanar.

Specifically, the first ground point (GND 1) is used for connecting a ground system, the second ground point (GND 1) is used for connecting the ground system, and the third ground point (GND 3) is used for connecting the ground system.

In particular, the ground system may refer to a component capable of functioning as a ground pole, which is typically composed of a relatively large block of metal. Wherein the ground system of the present application may be the same, the ground system may comprise one or more components. In the electronic device 100, the ground system 110 may include at least one of a ground component in the display module 110, the bezel assembly 120, the back cover assembly 130, and a ground component in the main board 140.

For example, bezel assembly 120 forms part of the ground pole of electronic device 100, and when electronics in electronic device 100 require grounding, bezel assembly 120 may be connected to ground the system.

In particular, the first matching circuit 432 may be used for impedance matching and/or for blocking matching. The first matching circuit 432 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the first matching circuit 432 may be one of (a) to (h) in fig. 5.

It should be noted that the first matching circuit 432 may include a blocking capacitor to implement the blocking matching.

In particular, the second matching circuit 433 may be used for impedance matching and/or for blocking matching. The second matching circuit 433 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the second matching circuit 433 may be one of (a) to (h) in fig. 5.

It should be noted that the second matching circuit 433 may include a blocking capacitor to implement the blocking matching.

Specifically, the first gap 413 may be filled with a nonmetallic insulating material.

In connection with the above description, the first antenna in the antenna assembly 400 is described in detail below.

Referring to fig. 6, the first antenna includes a first antenna radiator 411 and a second antenna radiator 412.

It should be noted that, in the first antenna of the antenna assembly 400, the first feed 414 may be used to generate an excitation signal, and the excitation signal is loaded on the first antenna radiator 411, so that the first antenna radiator 411 radiates an electromagnetic wave signal. Since the AB segment on the first antenna radiator 411 may be equivalent to a small inductance to ground, the AC segment on the first antenna radiator 411 may generate a resonant mode by excitation of the first feed 414. Similarly, the CB segment on the first antenna radiator 411 may produce a resonant mode by excitation of the first feed 414. As can be seen, the first antenna radiator 411 may be used to generate a plurality of resonant modes of the first antenna by excitation of the first feed 414.

In particular, the first antenna radiator 411 may be used to generate resonant modes for low and high frequencies, and the second antenna radiator 412 may be used to generate resonant modes for intermediate frequencies.

Specifically, the first antenna may be configured to cover at least one of an LTE MHB band, an LTE UHB band, an NR MHB band, an NR UHB band, and a WIFI 2.4GHz band.

Therefore, the first antenna of the embodiment of the application can cover the LTE MHB frequency band, the LTE UHB frequency band, the NR MHB frequency band, the NR UHB frequency band, the WIFI 2.4GHz frequency band and the like, so that the first antenna of the antenna assembly can cover a plurality of frequency bands and the transmission requirement of supporting multi-carrier aggregation is met while the communication performance of the antenna is met.

Specifically, the length of the first antenna radiator 411 may be greater than the length of the second antenna radiator 412.

Specifically, the length (length of the AC segment) of the first feeding point (a) to the first coupling end (C) may be greater than the length (length of the AB segment) of the first feeding point (a) to the first ground end (B).

It should be noted that, in the embodiment of the present application, different frequency bands may be supported by the first antenna by setting the first feeding point (a) at different positions on the first antenna radiator 411. Wherein, the closer the first feeding point (a) is located on the first antenna radiator 412 to the first ground terminal (B), i.e., the length of the AC section is longer than the length of the AB section, so that the radiation efficiency of the first antenna radiator 411 can be improved.

Specifically, the first antenna can be used for supporting a first resonant mode, a second resonant mode, a third resonant mode and a fourth resonant mode, wherein the length from a first grounding end to a first coupling end is 1/8 to 1/4 times of the corresponding wavelength of the central frequency of the first resonant mode, the length from a second grounding end to a second coupling end is 1/4 times of the corresponding wavelength of the central frequency of the second resonant mode, the length from a first feed point to the first coupling end is 1/4 times of the corresponding wavelength of the central frequency of the third resonant mode, and the length from the first grounding end to the first coupling end is 3/4 times of the corresponding wavelength of the central frequency of the fourth resonant mode.

Further, the first resonant mode center frequency may be one of 1.5GHz to 2.0GHz, the second resonant mode center frequency may be one of 2.5GHz to 3.0GHz, the third resonant mode center frequency may be one of 3.0GHz to 4.0GHz, and the fourth resonant mode center frequency may be one of 4.5GHz to 5.0 GHz.

It should be noted that the resonant mode center frequency may be adapted to the length of the antenna radiator that generates the resonant mode. Thus, the length of the first ground terminal (B) to the first coupling terminal (C) (length of BC segment), the length of the second ground terminal (E) to the second coupling terminal (D) (length of DE segment), and the length of the first feeding point (a) to the first coupling terminal (C) (length of AC segment) can be set by the resonant mode center frequencies generated thereby, respectively.

For example, referring to fig. 7, fig. 7 provides a schematic diagram of a distribution of a scattering (S) parameter (parameter) of a first antenna. Wherein the parameter S1,1 represents the reflection loss of the first antenna. The reference numeral 1 in fig. 6 indicates that the first resonant mode has a center frequency of 1.7767GHz, and the corresponding S parameter (S1, 1) is-4.5137 dB. Thus, the length from the first ground terminal (B) to the first coupling terminal (C) is about one of 20mm to 45 mm. Since the electromagnetic wave transmission speed is affected by various transmission media, the values from the first grounding end (B) to the first coupling end (C) are smaller than the values in practical engineering, and the following will be understood.

The reference number 2 in fig. 7 indicates that the second resonant mode has a center frequency of 2.5978GHz, and the corresponding S parameter (S1, 1) is-13.398 dB. Thus, the length of the second ground (E) to the second coupling (D) may be 28mm.

Reference numeral 3 in fig. 7 indicates that the third resonance mode has a center frequency of 3.4879GHz, and the corresponding S parameter (S1, 1) is-7.1213 dB. Therefore, the length from the first feeding point (a) to the first coupling end (C) is about 21mm.

The reference number 4 in fig. 7 indicates that the fourth resonant mode has a center frequency of 4.9369GHz, and the corresponding S parameter (S1, 1) is-16.755 dB. Thus, the first ground (B) to first coupling (C) is about 45mm.

In conjunction with the foregoing description, embodiments of the present application will be described below in detail with respect to the second antenna in the antenna assembly 400.

Referring to fig. 8, the second antenna includes a third antenna radiator 421.

Note that, in the second antenna of the antenna assembly 400, the FG section on the third antenna radiator 421 may generate a resonance mode by excitation of the second feed 422. Similarly, the GH section on the third antenna radiator 421 may generate a resonant mode by excitation of the second feed 422. Thus, the third antenna radiator 421 may be used to generate a plurality of resonant modes of the second antenna by excitation of the second feed 422. It can be seen that, by the second antenna in the antenna assembly 400, the resonant mode of the antenna assembly 400 is increased, so that the antenna assembly 400 covers multiple frequency bands, and the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured.

Specifically, the second antenna may be configured to cover at least one of an LTE MHB band, an LTE UHB band, an NR MHB band, an NR UHB band, a WIFI 2.4GHz band, and a GPS-L1 band.

It can be seen that the second antenna of the embodiment of the present application may cover LTE MHB frequency band, LTE UHB frequency band, NR MHB frequency band, NR UHB frequency band, WIFI 2.4GHz frequency band, GPS-L1 frequency band, etc., so as to further realize that the antenna assembly 400 covers multiple frequency bands while satisfying the antenna communication performance, and ensure that the antenna assembly 400 supports the transmission requirement of multicarrier aggregation.

In particular, the length of the second feeding point (F) to the first free end (G) may be greater than the length of the second feeding point (F) to the third ground end (H).

It should be noted that, in the embodiment of the present application, the second antenna may cover different frequency bands by setting the second feeding point (F) at different positions on the third antenna radiator 421. Wherein, the closer the second feeding point (F) is located on the third antenna radiator 421 to the third ground (H), i.e., the length from the second feeding point (F) to the first free end (G) is greater than the length from the second feeding point (F) to the third ground (H), so that the radiation efficiency of the third antenna radiator 422 can be improved.

Specifically, the second antenna may be configured to support a fifth resonant mode and a sixth resonant mode, where a length from the third ground end (H) to the first free end (G) may be 1/4 times a wavelength corresponding to a center frequency of the fifth resonant mode, and a length from the second feeding point (F) to the first free end (G) may be 1/4 times a wavelength corresponding to a center frequency of the sixth resonant mode.

Further, the fifth resonant mode center frequency may be one of 1.5GHz to 2.0GHz, and the sixth resonant mode center frequency may be one of 2.0GHz to 3.0 GHz.

For example, referring to fig. 9, fig. 9 provides a schematic diagram of the S parameter distribution of the second antenna. Wherein the curve S2,2 represents the reflection loss of the second antenna. The reference number 1 in fig. 7 indicates that the fifth resonant mode center frequency may be 1.5697GHz, which corresponds to an S parameter (S2, 2) of-7.3678 dB. Thus, the length of the third ground end (H) to the first free end (G) is about 47.7mm. Since the electromagnetic wave transmission speed is affected by various transmission media, in practical engineering, the length from the third ground end (H) to the first free end (G) is smaller than the above value, which is known in the following manner.

The reference numeral 2 in fig. 9 indicates that the sixth resonant mode has a center frequency of 2.515GHz, and the corresponding S parameter (S2, 2) is-7.3044 dB. Thus, the length of the second feed point (F) to the first free end (G) is about 29.8mm.

In connection with the above description, the following embodiments of the present application will specifically describe the antenna assembly 400 including the fourth antenna radiator, the third matching circuit, and the fourth matching circuit.

Referring to fig. 10, the antenna assembly 400 further includes a third matching circuit 441 and a fourth matching circuit 442, the third matching circuit 441 is connected in series between the first feeding point (a) and the first feeding source 414, and the fourth matching circuit 442 is connected in series between the second feeding point (F) and the second feeding source 422.

In particular, the third matching circuit 441 may be used for impedance matching and/or for blocking matching. The third matching circuit 441 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the third matching circuit 441 may be one of (a) to (h) in fig. 5.

It should be noted that the third matching circuit 441 may include a blocking capacitor to implement the blocking matching.

In particular, the fourth matching circuit 442 may be used for impedance matching and/or for blocking matching. The fourth matching circuit 442 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the fourth matching circuit 442 may be one of (a) to (h) in fig. 5.

It should be noted that the fourth matching circuit 442 may include a blocking capacitor to implement the blocking matching.

In conjunction with the foregoing description, embodiments of the present application will be described in detail below with respect to the antenna assembly 400 further including a third antenna.

Referring to fig. 11, the antenna assembly 400 further includes a third antenna including a fourth antenna radiator 451, a second gap 452 between the fourth antenna radiator 451 and the third antenna radiator 421, the fourth antenna radiator including a second free end (I) and a fourth ground end (J), the first free end (G) and the second free end (I) being located at two sides of the second gap (452) and coupled through the second gap (452), the fourth ground end (J) being provided with a fourth ground point (GND 1), and the fourth antenna radiator 451 being provided with a third feeding point (K) for connecting a third feed source.

Specifically, the fourth ground point (GND 1) is for connection to a ground system.

In the third antenna of the antenna assembly 400, first, the third feed 453 may be used to generate an excitation signal, and the excitation signal is applied to the fourth antenna radiator 451, so that the fourth antenna radiator 451 radiates an electromagnetic wave signal. Since the third feeding point (K) to the fourth ground (J) on the fourth antenna radiator 451 may be equivalent to a small inductance to ground, the third feeding point (K) to the second free end (I) may generate a resonance mode by excitation of the third feed 453. Similarly, the second free end (I) through the fourth ground end (J) may generate a resonant mode by the excitation of the third feed 453. It can be seen that the fourth antenna radiator 451 can be used to generate a plurality of resonant modes by excitation of the third feed 453. It can be seen that by adding the third antenna in the antenna assembly 400, thereby increasing the resonant mode of the antenna assembly 400, the antenna assembly 400 further covers multiple frequency bands, and ensures that the antenna assembly 400 supports the transmission requirement of multi-carrier aggregation.

Second, since the third antenna radiator 421 and the fourth antenna radiator 451 are disposed at intervals (i.e., the second gap 445 exists therebetween), that is, the fourth antenna radiator 451 and the antenna unit 2 are of common caliber, there is coupling of the second gap 445, so that the third antenna radiator 421 and the fourth antenna radiator 451 are equivalent to being connected by a capacitor. When the third antenna works, not only the fourth antenna radiator 451 of the third antenna can be utilized to transmit and receive electromagnetic wave signals, but also the antenna unit 1 and the antenna unit 2 can be utilized to transmit and receive electromagnetic wave signals, so that the frequency band covered by the antenna assembly 400 is further improved, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

Finally, by disposing the third antenna radiator 421 and the fourth antenna radiator 451 at a distance, the embodiment of the present application may consider the fourth antenna radiator 442 as the antenna unit 3. Therefore, the antenna unit 1 is coupled with the antenna unit 2, and the antenna unit 2 is coupled with the antenna unit 3, so that the frequency band covered by the antenna assembly 400 is improved, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

Specifically, the first antenna radiator 411, the second antenna radiator 412, the third antenna radiator 421, the antenna connection body 431, and the fourth antenna radiator 451 may be coplanar.

For example, if the first, second, third, and fourth antenna radiators 411, 412, 421, 431, and 451 are metal patches or the like, the first, second, third, and fourth antenna radiators 411, 412, 421, 431, and 451 may be coplanar.

Specifically, the fourth antenna radiator 451 may be any one of an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, and a metal branch.

Specifically, the third antenna may be configured to support at least one of an N78 band, an N79 band, and a WIFI 5GHz band.

Therefore, the third antenna of the embodiment of the present application can cover the N78 frequency band, the N79 frequency band, the WIFI 5GHz frequency band, etc., so as to further realize that the antenna assembly 400 covers a plurality of frequency bands while satisfying the antenna communication performance, and ensure that the antenna assembly 400 supports the transmission requirement of multi-carrier aggregation.

In particular, the length of the second free end (I) to the third feeding point (K) may be smaller than the length of the third feeding point (K) to the fourth ground end (J).

It should be noted that, in the embodiment of the present application, the third antenna may cover different frequency bands by setting the third feeding point (K) at different positions on the fourth antenna radiator 451. Wherein, the farther the third feeding point (K) is located on the fourth antenna radiator 451 from the fourth ground terminal (J), i.e., the length from the second free end (I) to the third feeding point (K) is smaller than the length from the third feeding point (K) to the fourth ground terminal (J), so that the radiation efficiency of the fourth antenna radiator 451 can be improved.

The third antenna is used for supporting a seventh resonance mode, an eighth resonance mode, a ninth resonance mode and a tenth resonance mode, wherein current distribution of the seventh resonance mode is from a third feed point to a third grounding end, the length from the fourth grounding end to the second free end is 1/8 to 1/4 times of the wavelength corresponding to the center frequency of the eighth resonance mode, the length from the third feed point to the second free end is 1/4 times of the wavelength corresponding to the center frequency of the ninth resonance mode, and the length from the third grounding end to the first free end is 3/4 times of the wavelength corresponding to the center frequency of the tenth resonance mode.

Further, the seventh resonant mode center frequency may be one of 3.0GHz to 3.5GHz, the eighth resonant mode center frequency may be one of 3.5GHz to 4.0GHz, the ninth resonant mode center frequency may be one of 5.0GHz to 6.0GHz, and the tenth resonant mode center frequency may be one of 6.0GHz to 7.0 GHz.

Referring to fig. 12 in combination with the above description, fig. 12 provides a schematic diagram of the S parameter distribution of the third antenna. Wherein the curve S3,3 represents the reflection loss of the third antenna. The symbol 2 in fig. 12 indicates that the eighth resonance mode has a center frequency of 3.8669GHz, and the corresponding S parameter (S3, 3) is-5.1333 dB. Thus, the length of the second free end (I) to the fourth ground end (J) is about one of 9.7mm to 19.4 mm. Since the electromagnetic wave transmission speed is affected by various transmission media, the lengths of the second free end (I) to the fourth ground end (J) are smaller than the above values in practical engineering, and the following will be understood. Reference numeral 3 in fig. 12 indicates that the ninth resonant mode center frequency is 5.6098GHz, and the corresponding S parameter (S2, 2) is-10.755 dB. Thus, the length of the second free end (I) to the third feed point (K) is about 13.37mm.

In conjunction with the above description, embodiments of the present application will be specifically described below with respect to the antenna assembly 400 further including a fifth matching circuit.

Referring to fig. 13, the antenna assembly 400 further includes a fifth matching circuit 443.

In particular, the fifth matching circuit 443 may be used for impedance matching and/or blocking matching. The fifth matching circuit 443 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the fifth matching circuit 443 may be one of (a) to (h) in fig. 5.

It should be noted that the fifth matching circuit 443 may include a blocking capacitor to implement blocking matching.

In connection with the above description, in order to achieve the capability of the antenna assembly 400 to detect the electromagnetic wave energy absorption ratio (specific absorption rate, SAR), embodiments of the present application need to consider whether the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442, and the fifth matching circuit 443 include a blocking device, which may include a blocking capacitor or a blocking circuit.

Referring to fig. 14, if the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442 and the fifth matching circuit 443 do not include a blocking device, the antenna assembly 400 may further include a first capacitor (C1), a second capacitor (C2), a third capacitor (C3), a fourth capacitor (C4), a fifth capacitor (C5), a sixth capacitor (C6) and a seventh capacitor (C7), wherein the first capacitor is connected in series between the first antenna radiator 411 and a ground system to which the first ground point is connected, the second capacitor is connected in series between the third antenna radiator 421 and a ground system to which the third ground point is connected, the third capacitor is connected in series between the first feeding point (a) and the first feeding point 414, the fourth capacitor is connected in series between the second feeding point (F) and the second feeding point 422, the fifth capacitor is connected in series between the second antenna radiator 412 and a ground system to which the second ground point is connected, and the sixth capacitor is connected in series between the third feeding point (K) and the third feeding point 453.

The capacitance values of the first capacitor (C1), the second capacitor (C2), the third capacitor (C3), the fourth capacitor (C4), the fifth capacitor (C5), the sixth capacitor (C6) and the seventh capacitor (C7) may be 22pF, so that the influence on the antenna assembly 400 is less.

It should be noted that, when the antenna assembly 400 is applied to an electronic device, a proximity sensor in the electronic device may use a floating metal body to sense a capacitance signal change caused by a user using the electronic device, so as to determine whether the user is close to or far from the electronic device.

For example, in fig. 15 (a), the proximity sensor 1510 includes a printed circuit board (printed circuit board, PCB) and an overlay board, and the proximity sensor 1510 itself can generate the capacitance signal (C ₁). When the user 1520 approaches the proximity sensor 1510, the proximity sensor 1510 can sense a change in capacitance signal (C ₂) caused by the user 1520. Therefore, in the embodiment of the application, the first capacitor (C1), the second capacitor (C2), the third capacitor (C3), the fourth capacitor (C4), the fifth capacitor (C5), the sixth capacitor (C6) and the seventh capacitor (C7) with the function of blocking are added to the antenna assembly 400, so that the antenna assembly 400 is suspended, so that the antenna assembly 400 is used as a metal body suspended relative to a direct current circuit in a feed source and/or a ground system, and the antenna assembly 400 has the capability of SAR detection.

In addition, it is understood that if some of the first matching circuit 432, the second matching circuit 433, the third matching circuit 441, the fourth matching circuit 442, and the fifth matching circuit 443 include a blocking device, the blocking device need not be added to the partial matching circuits. For example, if the first matching circuit 432 includes a blocking device (i.e., the first matching circuit 432 has a blocking match), the antenna assembly 400 need not include the first capacitor (C1), and the corresponding connection relationship, which is not particularly limited.

In connection with the above description, in the case that the antenna assembly 400 includes the first antenna, the second antenna, and the third antenna, the embodiment of the present application analyzes an impedance bandwidth, an isolation, a radiation efficiency (RADIANTEFFICIENCY), a total efficiency (total efficiency), and the like between the antennas in the antenna assembly 400.

Referring to fig. 16, fig. 16 provides a schematic distribution diagram of S parameters of the first antenna, the second antenna and the third antenna. Wherein curve 1611 represents parameters S1,1 of the first antenna (parameters S1,1 represent the reflection loss of the first antenna), curve 1621 represents parameters S2,1 of the first antenna (parameters S2,1 represent the feed loss of the second antenna to the first antenna), curve 1622 represents parameters S2,2 of the second antenna (parameters S2,2 represent the reflection loss of the second antenna), curve 1631 represents parameters S3,1 of the third antenna (parameters S3,1 represent the feed loss of the third antenna to the first antenna), curve 1632 represents parameters S3,2 of the third antenna (parameters S3,2 represent the feed loss of the third antenna to the second antenna), and curve 1633 represents parameters S3,3 of the third antenna (parameters S3,3 represent the reflection loss of the third antenna). It can be seen that in the antenna assembly 400, the first antenna, the second antenna and the third antenna have good impedance bandwidths, respectively, and good isolation between the antennas.

Referring to fig. 17, fig. 17 provides a schematic diagram of the distribution of the radiation efficiency and the total efficiency of the first antenna, the second antenna and the third antenna. Wherein, curve 1711 represents the radiation efficiency of the first antenna, curve 1712 represents the radiation efficiency of the second antenna, curve 1713 represents the radiation efficiency of the third antenna, curve 1721 represents the total efficiency of the first antenna, curve 1722 represents the total efficiency of the second antenna, and curve 1723 represents the total efficiency of the third antenna. It can be seen that each antenna in the antenna assembly 400 has a good effective bandwidth.

In connection with the above description, the following embodiments of the present application specifically describe the antenna assembly 400 further including at least one sixth matching circuit.

Referring to fig. 18 and 19, the antenna assembly 400 may further include at least one sixth matching circuit 461, wherein one end of the sixth matching circuit 461 is connected to a fifth ground point (L) on the antenna connection body 431, the fifth ground point (L) is provided with a fifth ground point (GND 5), the fifth ground point (L) is located between the first ground point (B) and the third ground point (H), and the other end of the sixth matching circuit 461 is connected to a ground system connected to the fifth ground point.

It should be noted that, by adding the sixth matching circuit 461 to the ground in the antenna assembly 400 (the antenna unit 2), the isolation between the antennas in the antenna assembly 400 is advantageously improved, and the resonant mode with low efficiency on the antenna unit 2 can be effectively filtered out. Meanwhile, the greater the number of the sixth matching circuits 461, the better the isolation between the antennas in the antenna assembly 400, and the better the filtering of the resonant modes with low efficiency on the antenna unit 2.

In particular, the sixth matching circuit 461 may be used for impedance matching and/or blocking matching. The sixth matching circuit 461 may include at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, a switch, and a variable capacitor. For example, referring to fig. 5, the sixth matching circuit 461 may be one of (a) to (h) in fig. 5.

Note that the sixth matching circuit 461 may include a blocking capacitor to achieve blocking matching.

In connection with the above description, the antenna assembly 400 is provided with SAR detection capabilities in order to implement an antenna assembly comprising a sixth matching circuit. Thus, if the sixth matching circuit does not include a blocking device, the antenna assembly 400 further includes an eighth capacitor (C8) connected in series between the antenna connection 431 and the ground system to which the fifth ground point is connected. The capacitance value of the eighth capacitor (C8) may be 22pF, so that the antenna assembly 400 is less affected. In addition, the specific connection relationship can be known by those skilled in the art in combination with the above description, and will not be repeated.

In connection with the above description, the following embodiments of the present application specifically describe the antenna assembly 400 including the fifth antenna radiator.

Referring to fig. 20, 21, 22, 23 and 24, the antenna assembly 400 may further include a fifth antenna radiator 471, one end (M) of which is connected to the first feed 414, and the other end (N) of which is an open end.

It should be noted that, in the embodiment of the present application, by adding the fifth antenna radiator 471 to the first antenna, the resonant mode of the first antenna is increased, so that the antenna assembly is more flexibly debugged, the antenna efficiency of the antenna assembly is improved, the antenna assembly 400 is further implemented to cover a plurality of frequency bands, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, and the spatial multiplexing capability is improved.

In addition, the embodiment of the present application may consider the fifth antenna radiator 471 as the antenna unit 4.

The connection relationship among the fifth antenna radiator 471, the third matching circuit 441 and the first antenna is described as an example.

For example, referring to fig. 25, the third matching circuit 441 includes a ninth capacitor (C9), a tenth capacitor (C10), an eleventh capacitor (C11), a twelfth capacitor (C12), a first inductor (L1), and a second inductor (L2). The capacitance value of the ninth capacitor is 1.0pF, the capacitance value of the tenth capacitor is 0.8pF, the capacitance value of the eleventh capacitor is 0.5pF, the capacitance value of the twelfth capacitor is 0.8pF, the inductance value of the first inductor is 1.0nH, and the inductance value of the first inductor is 15nH. Since the fifth antenna radiator 4711 is connected between 0.5pF and 0.8pF, this form of capacitive connection has less effect on other frequency bands covered by the antenna assembly 400, which corresponds to 0.35pF in parallel (0.5 pF in series with 0.8pF being equivalent to 0.35 pF).

Specifically, the fifth antenna radiator 471 may be an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch.

Specifically, the fifth antenna radiator 471 may be configured to cover at least one of the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band.

Specifically, the fifth antenna radiator 471 may be used to support the eleventh resonant mode, and the length of the fifth antenna radiator 471 (length of the MN segment) may be 1/8 to 1/2 times the wavelength corresponding to the center frequency of the eleventh resonant mode.

Wherein the eleventh resonant mode center frequency may be one of 4.5GHz to 5.5 GHz.

Referring to fig. 26 in combination with the above description, fig. 26 provides a schematic distribution diagram of S parameters of a first antenna including a fifth antenna radiator. Wherein the curve S1,1 represents the reflection loss of the first antenna. The symbol 4 in fig. 26 indicates that the eleventh resonant mode has a center frequency of 4.9793GHz, and the corresponding S parameter (S1, 1) is-13.045 dB. Thus, the length of the fifth antenna radiator 471 (the length of the MN segment) is about one of 7.53mm to 30.12 mm. Since the electromagnetic wave transmission speed is affected by various transmission media, the length of the fifth antenna radiator 471 is smaller than the above value in practical engineering. In addition, the fifth antenna radiator added to the first antenna has affected the covered frequencies of the first antenna described in fig. 7, compared to that shown in fig. 5.

In connection with the above description, in the case where the antenna assembly 400 includes the fifth antenna radiator 471, the embodiment of the present application analyzes the radiation efficiency (RADIANTEFFICIENCY) and the total efficiency (total efficiency) of the first antenna, etc.

Referring to fig. 27, fig. 27 provides a schematic diagram of the distribution of the radiation efficiency and the total efficiency of the first antenna. Wherein, curve 2711 represents the radiation efficiency of the first antenna and curve 2712 represents the total efficiency of the first antenna. Therefore, the fifth antenna radiator 471 is added to the first antenna, which is beneficial to improving the antenna efficiency of the antenna assembly and ensuring a specific and good efficiency bandwidth of the antenna assembly.

In combination with the above description, the antenna assembly is configured to cover at least one of an LTE MHB band, an LTE UHB band, an NR MHB band, an NR UHB band, a WIFI 2.4GHz band, a WIFI 5GHz band, and a GPS-L1 band.

In summary, it can be seen that the first antenna, the second antenna and the third antenna of the antenna assembly 400 according to the embodiment of the application have a common aperture, and each antenna has good isolation, impedance bandwidth, radiation efficiency and spatial multiplexing capability. Meanwhile, the antenna assembly 400 can cover a plurality of frequency bands, support the transmission requirement of multi-carrier aggregation, and have the capability of SAR detection.

In connection with the above description, the embodiments of the present application further provide an electronic device, which may be the electronic device 100 described above, and the electronic device may include an antenna assembly, which may be the antenna assembly 400 described above. Wherein, the

The antenna assembly may include a first antenna, which may include a first antenna radiator and a second antenna radiator, with a first gap between the first antenna radiator and the second antenna radiator;

The first antenna radiator comprises a first coupling end and a first grounding end, the second antenna radiator comprises a second coupling end and a second grounding end, the first coupling end and the second coupling end are respectively positioned at two sides of the first gap and are coupled through the first gap, the first grounding end is provided with a first grounding point, the second grounding end is provided with a second grounding point, and the first antenna radiator is grounded to the grounding system through the first grounding point;

It should be noted that, first, the description of the embodiments of the present application has emphasis on each. Therefore, for the portions of the embodiment on the electronic device side that are not described in detail, reference may be made to the description related to the embodiment on the antenna assembly 400 side, and the same technical effects may be achieved, which will not be described in detail.

Secondly, in the first antenna of the antenna assembly, since the first antenna radiator and the second antenna radiator are arranged at intervals (i.e. a first gap exists between the first antenna radiator and the second antenna radiator), that is, the first antenna radiator and the second antenna radiator are in common aperture, there is coupling of the first gap, so that the first antenna radiator and the second antenna radiator are equivalent to being connected through a capacitor. The capacitance value of the capacitor can be determined by the relative area of the end face of one end of the first antenna radiator, the relative area of the end face of one end of the second antenna radiator, the interval between the first gaps and the medium filled in the first gaps. In addition, when the first antenna is in operation, the excitation signal generated by the first feed may be coupled to the second antenna radiator via the first antenna radiator. Thus, the second antenna radiator may generate a plurality of resonant modes of the first antenna by coupling of the first slot. It can be seen that when the first antenna transmits and receives electromagnetic wave signals, not only the first antenna radiator but also the second antenna radiator can be utilized, so that the antenna communication performance of the antenna assembly is realized. Meanwhile, the resonance mode of the antenna assembly is increased through one slot (first slot), so that the antenna assembly can cover a plurality of frequency bands, the transmission requirement of the antenna assembly for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

Again, the electronic device has a first side, a second side, and a third side. Wherein the second side is disposed adjacent to one side of the first side, and the third side is disposed adjacent to the other side of the first side.

For example, in fig. 1, the electronic device 100 has left and right long sides and up and down short sides, and thus, a first side may be one long side of the electronic device 100, a second side may be one short side of the electronic device 100, and a third side may be the other short side of the electronic device 100.

Finally, in the embodiment of the application, the first gap is limited on the first side of the electronic device, the distance from the first gap to the second side of the electronic device is greater than 30mm, and the distance from the first gap to the third side of the electronic device is greater than 30mm, so that when a user holds the second side and the third side of the electronic device, the hand of the user is not easy to touch or shade the first gap on the first side, the first gap is effectively prevented from being shaded by the hand of the user, the normal operation of the first antenna is ensured, and the electronic device applied by the antenna assembly 400 has better communication effect.

For example, when a user plays a game, looks at a video, etc. with the electronic device shown in fig. 1 in a landscape mode, that is, the user holds two short sides of the electronic device, in order for the first antenna in the antenna assembly of the electronic device to still work normally, the position of the first slot should avoid the user's hand so that it is not blocked or blocked. Therefore, the distance from the first slit located on the long side of the electronic device to the top of the electronic device (the upper short side of the electronic device) is greater than 30mm, and the distance from the first slit to the lower part of the electronic device (the lower short side of the electronic device) is greater than 30mm, thereby ensuring better operation of the first antenna.

Specifically, the length of the first edge is greater than 60mm.

Specifically, the antenna assembly may be located in an accommodating space formed by the display module 110, the frame assembly 120, and the back cover assembly 130 of the electronic device 100.

Specifically, the first antenna, the second antenna, or the third antenna may be the antennas in fig. 3.

In particular, the first feed may be disposed on a motherboard 140 within the electronic device 100. Meanwhile, the communication function of the electronic device 100 is ensured by the feeding mode of the first feed source.

Specifically, the first antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the bezel on the bezel assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the bezel assembly 120, a flexible circuit disposed on the motherboard 140, a metal patch printed on the motherboard 140. Similarly, the second antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100, which is not particularly limited.

In particular, the first antenna radiator may be used to generate resonant modes for low and high frequencies and the second antenna radiator may be used to generate resonant modes for intermediate frequencies.

In particular, the length of the first antenna radiator may be greater than the length of the second antenna radiator.

Specifically, the length from the first feeding point to the first coupling end may be greater than the length from the first feeding point to the first grounding end.

It should be noted that, in the embodiment of the present application, different frequency bands supported by the first antenna may be implemented by setting the first feeding point at different positions on the first antenna radiator. The position of the first feed point on the first antenna radiator is closer to the first grounding end, so that the radiation efficiency of the first antenna radiator can be improved.

In the case where the antenna assembly 400 is applied to the electronic device of the present application, the following embodiment of the present application will specifically describe a structural layout of the first antenna in the electronic device.

Referring to fig. 28, a housing 2800 may represent a portion of the outer contour of the electronic device. One vertical side (e.g., left side) of the frame 2800 represents a first side of the electronic device, a lateral top side of the frame 2800 represents a second side of the electronic device, and a lateral bottom side of the frame 2800 represents a third side of the electronic device. Therefore, the first antenna radiator 411 of the antenna assembly 400 is located at the first side of the electronic device, the second antenna radiator 412 of the antenna assembly 400 is located at the first side of the electronic device, the distance from the first slot to the second side is greater than 30mm, and the distance from the first slot to the third side is greater than 30mm.

It should be noted that the first side of the electronic device may be a long side of the electronic device 100. Accordingly, the first antenna radiator 411 and the second antenna radiator 412 may be located on the long side of the electronic device 100. The first antenna radiator 411 and the second antenna radiator 412 may be a section of a frame on the frame assembly 120 or a metal body printed on an inner side of the frame assembly 120, etc.

In addition, the purpose of the first antenna radiator 411 and the second antenna radiator 412 located on the long side of the electronic device 100 is that when a user plays a game or looks at a video through a horizontal screen of the electronic device 100 (e.g., the top side and/or the bottom side of the horizontal direction where the user holds the frame 2800), the first slit 413 is located on the long side of the electronic device 100, so that the user's hand can be effectively prevented from shielding the first slit 413, and normal operation of the first antenna is ensured, so that the electronic device applied by the antenna assembly 400 has a better communication effect.

In combination with the above description, the antenna assembly may further include a second antenna including a third antenna radiator, the third antenna radiator including a first free end and a third ground end, the third ground end being provided with a third ground point, the third antenna radiator being grounded to the ground system through the third ground point, and a second feed point being provided on the third antenna radiator, the second feed point being for connection to a second feed source.

In the second antenna of the antenna assembly, the second feed may be used to generate an excitation signal, and the excitation signal is applied to the third antenna radiator, so that the third antenna radiator radiates an electromagnetic wave signal. Since the FH segment on the third antenna radiator may be equivalent to a small inductance to ground, the FG segment on the third antenna radiator may generate a resonant mode through excitation of the second feed. Similarly, the GH section on the third antenna radiator may generate a resonant mode by excitation of the second feed. Thus, the third antenna radiator may generate a plurality of resonant modes of the second antenna by excitation of the second feed.

Therefore, the second antenna in the antenna assembly increases the resonance mode of the antenna assembly, so that the antenna assembly can cover a plurality of frequency bands, the transmission requirement of the antenna assembly for supporting multi-carrier aggregation is ensured, and the space multiplexing capability is improved.

Specifically, the third antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the bezel on the bezel assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the bezel assembly 120, a flexible circuit disposed on the motherboard 140, a metal patch printed on the motherboard 140.

The following description will explain the structural layout of the second antenna on the electronic device.

Case one:

referring to fig. 29, the third antenna radiator 421 of the antenna assembly 400 includes a first sub-radiator (HP section) and a second sub-radiator (GP section), one end of the first sub-radiator is bent and connected with one end of the second sub-radiator, the other end of the first sub-radiator is a third ground end (H), the other end of the second sub-radiator is a first free end (G), the first sub-radiator is located on a first side of the electronic device, the second sub-radiator is located on a second side of the electronic device, and the second feeding point (F) is located on the first sub-radiator or the second sub-radiator.

The first sub-radiator and the second sub-radiator may be a diagonal frame on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120, etc.

It should be noted that, one end of the first sub-radiator is bent and connected with one end of the second sub-radiator, so that the second antenna can be conveniently arranged corresponding to the corner of the electronic device. The second antenna is disposed corresponding to the corner of the electronic device, so that when the user uses the electronic device 100 through the vertical screen (such as the vertical side where the user holds the frame 2800 or the horizontal side where the user holds the frame 2800), the user's hand is generally held at the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, and therefore when a portion of the second antenna is located at the upper short side of the electronic device 100, the second antenna is difficult to be held by the user, so that the normal operation of the second antenna is ensured, and further, the electronic device applied by the antenna assembly 400 has a better communication effect.

And a second case:

Referring to fig. 30, the third antenna radiator 421 of the antenna assembly 400 is located on the first side or the second side of the electronic device.

The third antenna radiator 421 is located on the long side or the short side of the electronic device 100. It will be appreciated that the second antenna is located on the long or short side of the electronic device 100. The third antenna radiator 421 may be a section of the frame on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120.

In addition, the purpose of the third antenna radiator 421 located on the long side of the electronic device 100 is that when the user uses the electronic device 100 through the horizontal screen (such as the top and/or bottom sides of the horizontal direction where the user holds the frame 2800), the user's hand is generally held on the short side of the electronic device 100, so that the user is difficult to hold the second antenna located on the long side of the electronic device 100, and thus the normal operation of the second antenna is ensured, and the electronic device applied by the antenna assembly 400 has a better communication effect.

The third antenna radiator 421 is located at a short side of the electronic device 100, so that when a user uses the electronic device 100 through a vertical screen (such as a vertical side where the user holds the frame 2800 or a horizontal bottom where the user holds the frame 2800), the user's hand is generally held at a lower half of a long side of the electronic device 100 or a lower short side of the electronic device 100, and therefore when the second antenna is located at an upper short side of the electronic device 100, the second antenna is difficult to hold by the user, so that normal operation of the second antenna is ensured, and thus the electronic device applied by the antenna assembly 400 has a better communication effect.

In combination with the above description, the antenna assembly may further include an antenna connector, a first matching circuit, and a second matching circuit, the antenna connector being connected to the first ground terminal and the third ground terminal, respectively, the first antenna radiator being connected to the first matching circuit through the first ground terminal to connect to the ground system, and the third antenna radiator being connected to the second matching circuit through the third ground terminal to connect to the ground system.

Specifically, the antenna connector may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the bezel on the bezel assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the bezel assembly 120, a flexible circuit disposed on the motherboard 140, a metal patch printed on the motherboard 140.

Therefore, the first antenna and the second antenna are connected through the antenna connector, so that the co-radiating body of the first antenna and the second antenna is realized, the frequency band covered by the antenna assembly 400 is improved, the transmission requirement of the antenna assembly 400 for supporting multi-carrier aggregation is ensured, the space multiplexing capability is improved, and the electronic equipment applied by the antenna assembly 400 has a relatively good communication effect.

The following description will explain the structural layout of the antenna connector, the first matching circuit, and the second matching circuit on the electronic device.

Referring to fig. 31 and 32, the antenna connection body 431 is connected to the first ground (B) and the third ground (H), respectively, the first matching circuit 432 is connected in series between the first antenna radiator 411 and the ground system to which the first ground point is connected, and the second matching circuit 433 is connected in series between the third antenna radiator 421 and the ground system to which the third ground point is connected.

In combination with the above description, the antenna assembly may further include a third matching circuit and a fourth matching circuit, where the third matching circuit is connected in series between the first feed point and the first feed source, and the fourth matching circuit is connected in series between the second feed point and the second feed source.

The following description will explain the structural layout of the third matching circuit and the fourth matching circuit on the electronic device.

Referring to fig. 33 and 34, a third matching circuit 441 is connected in series between the first feeding point (a) and the first feed source 414, and a fourth matching circuit 442 is connected in series between the second feeding point (F) and the second feed source 422.

In combination with the above description, the antenna assembly may further include a third antenna including a fourth antenna radiator, a second slot between the fourth antenna radiator and the third antenna radiator end, the fourth antenna radiator including a second free end and a fourth ground end, the first free end and the second free end being located at two sides of the second slot and coupled through the second slot, the fourth ground end being provided with a fourth ground point, the fourth antenna radiator being provided with a third feed point, the third feed point being used for connecting a third feed source.

The fourth antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the bezel on the bezel assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the bezel assembly 120, a flexible circuit disposed on the motherboard 140, a metal patch printed on the motherboard 140.

The following description will explain the structural layout of the third antenna on the electronic device.

Case one:

Referring to fig. 35, the fourth antenna radiator 451 of the antenna assembly 400 includes a third sub-radiator (IQ section) and a fourth sub-radiator (JQ section), wherein one end of the third sub-radiator is bent and connected with one end of the fourth sub-radiator, the other end of the third sub-radiator is a second free end (I), the other end of the fourth sub-radiator is a fourth ground end (J), the third sub-radiator is located on a first side of the electronic device, the fourth sub-radiator is located on a second side of the electronic device, and the third feeding point (K) is located on the third sub-radiator or the fourth sub-radiator.

Wherein the third and fourth sub-radiators may be a diagonal frame on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120, etc.

It should be noted that, one end of the third sub-radiator is bent and connected with one end of the fourth sub-radiator, so that the angle setting of the third antenna corresponding to the electronic device can be facilitated. The purpose of the angle setting of the third antenna corresponding to the electronic device is that when the user uses the electronic device 100 through the vertical screen (such as the vertical side where the user holds the frame 2800 or the horizontal bottom where the user holds the frame 2800), the user's hand is generally held on the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, so when a part of the third antenna is located on the upper short side of the electronic device, the second slot 452 is located on the upper half of the long side of the electronic device 100, thereby effectively avoiding the user's hand from shielding the second slot 452, ensuring the normal operation of the third antenna, and further enabling the electronic device applied by the antenna assembly 400 to have a better communication effect.

And a second case:

referring to fig. 36, the fourth antenna radiator 451 is located at the second side of the electronic device.

Referring to fig. 37, the fourth antenna radiator 451 is located on the first side of the electronic device.

The fourth antenna radiator 451 is located on the long side or the short side of the electronic device 100. It is understood that the third antenna is located on the long side or the short side of the electronic device 100. The fourth antenna radiator 451 may be a section of the frame on the frame assembly 120 or a metal body printed on the inner side of the frame assembly 120, etc.

In addition, the purpose of the fourth antenna radiator 451 located on the long side of the electronic device 100 is that when a user uses the electronic device 100 through the vertical screen (such as the vertical side where the user holds the frame 2800 or the horizontal bottom where the user holds the frame 2800), the second slot 452 is located on the upper half of the long side of the electronic device 100, and the user's hand is generally held on the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, so that the user's hand can be effectively prevented from shielding the second slot 452, and normal operation of the third antenna is ensured, so that the electronic device applied by the antenna assembly 400 has a better communication effect.

The purpose of the third antenna radiator 421 located at the short side of the electronic device 100 is that when a user uses the electronic device 100 through the vertical screen (such as the vertical side where the user holds the frame 2800 or the horizontal bottom where the user holds the frame 2800), the second slot 452 is located at the upper short side of the electronic device 100, and the user's hand is generally held at the lower half of the long side of the electronic device 100 or the lower short side of the electronic device 100, so that the user's hand can be effectively prevented from shielding the second slot 452, and normal operation of the third antenna is ensured, so that the electronic device applied by the antenna assembly 400 has a better communication effect.

In combination with the above description, the antenna assembly may further include a fifth antenna radiator, one end of the fifth antenna radiator is connected to the first feeding point, and the other end of the fifth antenna radiator is a free end.

The fifth antenna radiator may be a different metal structure (metal body or metal arm, etc.) on the electronic device 100. For example, a section of the bezel on the bezel assembly 120, a metal patch printed on the inside of the back cover assembly 130, a metal patch printed on the inside of the bezel assembly 120, a flexible circuit disposed on the motherboard 140, a metal patch printed on the motherboard 140.

It should be noted that, in the embodiment of the present application, by adding the fifth antenna radiator 471 to the first antenna, the resonant mode of the first antenna is increased, so as to ensure that the debugging of the antenna assembly is more flexible, improve the antenna efficiency of the antenna assembly, further realize that the antenna assembly 400 covers multiple frequency bands, and ensure that the antenna assembly 400 supports the transmission requirement of multi-carrier aggregation.

The following description will explain the structural layout of the fifth antenna radiator on the electronic device.

Referring to fig. 38, one end of the fifth antenna radiator 471 is connected to the first feeding point (a), and the other end of the fifth antenna radiator is a free end.

In connection with the above description, since the electronic device may include at least one key, such as a power key, a volume key, and an mute key. For example, the bezel assembly 120 of the electronic device 100 needs to provide a certain gap for positioning the keys, or a touch type is used to position the keys inside the bezel assembly 120 without providing a gap. Therefore, when the antenna assembly 400 is applied to an electronic device, the structural layout of the antenna assembly 400 and the keys is implemented to improve the overall stacking of the electronic device, which is described in detail below.

Specifically, the electronic device further comprises at least one key, a first antenna radiator 411 is arranged around or around the key, or a second antenna radiator 412 is arranged around or around the key, or a third antenna radiator 421 is arranged around or around the key, or an antenna connection 431 is arranged around or around the key, or a fourth antenna radiator 451 is arranged around or around the key.

It should be noted that, if the frame assembly 120 of the electronic device 100 needs to have a certain gap for positioning the key, and the first antenna radiator 411 is a section of the frame assembly 120, the first antenna radiator 411 needs to have the gap for positioning the key. At this time, the first antenna radiator 411 is disposed around the key. Or if the frame component 120 of the electronic device 100 does not need to provide a certain gap, but a key is disposed on the inner side of the frame component 120 by using touch control, and the first antenna radiator 411 is a section of the frame component 120, the key may be disposed close to the first antenna radiator 411, that is, the first antenna radiator 411 is disposed around the key. The structural layout of the rest antenna radiator and the key are the same, and will not be described again.

For example, referring to fig. 39, an electronic device includes keys 3901 and 3902. Wherein the second antenna radiator 412 is disposed around or about the key 3901 and the antenna connection 431 is disposed around or about the key 3902. It can be seen that the antenna assembly 400 and the structural layout of the keys are beneficial to improving the overall stacking of the electronic device.

In connection with the descriptions of fig. 14, 23 and 24, when the antenna assembly 400 is applied to an electronic device, in order to implement the SAR detection capability of the electronic device, the antenna unit 1/antenna unit 2/antenna unit 3 of the antenna assembly 400 needs to be suspended as a metal body with respect to a dc circuit in a feed and/or ground system by a blocking device.

Specifically, a straight blocking device is connected in series between the first feed source and the first antenna radiator, a straight blocking device is connected in series between the second feed source and the third antenna radiator, a straight blocking device is connected in series between the third feed source and the fourth antenna radiator, a straight blocking device is connected in series between the first antenna radiator and a ground system connected with the first grounding point, a straight blocking device is connected in series between the third antenna radiator and a ground system connected with the third grounding point, and a straight blocking device is connected in series between the second antenna radiator and a ground system connected with the second grounding point.

Wherein the blocking device may comprise a blocking capacitor or a blocking circuit.

In connection with the description, in the case where the antenna unit 1/antenna unit 2/antenna unit 3 of the above-described antenna assembly 400 is used as a metal body suspended with respect to a direct current circuit in a feed and/or ground system by a blocking capacitance, the electronic device of the embodiment of the present application includes a proximity sensor, so that SAR detection capability of the electronic device is realized by the proximity sensor and the antenna assembly 400.

Specifically, the electronic device may further include a proximity sensor and at least one detection branch, the detection branch being configured to connect the proximity sensor to the antenna assembly 400, the proximity sensor being configured to detect a change in the capacitance signal via the antenna assembly 400 to determine whether the user is approaching or moving away from the electronic device.

Further, the detection branch may comprise a signal filtering device.

It should be noted that, the signal filtering device added to the detection branch may isolate or filter the higher frequency signal, so as to ensure that the antenna assembly 400 is not affected by the detection branch.

Further, the signal filtering device may include an inductor or a signal filtering circuit. The inductance of the inductor may be 82nH, so that the antenna assembly 400 is less affected.

Further, the proximity sensor may be disposed on a motherboard 140 within the electronic device 100, and the detection branch may be disposed on the motherboard 140 within the electronic device 100.

For example, referring to fig. 40, the electronic device further includes a proximity sensor 4001, an inductance L3, an inductance L4, and an inductance L5. The line of the proximity sensor 4001 connected to the antenna unit 3 through the inductance L3 can be regarded as a detection branch. Similarly, the line of the proximity sensor 4001 connected to the antenna unit 2 through the inductance L4 can be regarded as a detection branch, and the line of the proximity sensor 4001 connected to the antenna unit 1 through the inductance L5 can be regarded as a detection branch.

The proximity sensor 4001 may be connected to any position on the antenna unit 1/antenna unit 2/antenna unit 3 through a detection branch. Meanwhile, the proximity sensor 4001 may be connected to at least one of the antenna unit 1/the antenna unit 2/the antenna unit 3 through a detection branch, which is not particularly limited.

Therefore, the proximity sensor in the electronic device can utilize the suspended antenna assembly 400 to sense the capacitance signal change caused by the user using the electronic device, so as to determine whether the user is close to or far from the electronic device, and further ensure that the electronic device has the SAR detection capability.

In the above embodiments, the description of each embodiment of the present application has an emphasis. Therefore, those skilled in the art can learn about the technical solution (or the structural layout) in a certain embodiment through the structural layout in the existing drawings, and detailed description of the drawings is not provided, which is not repeated.

In summary, the antenna assembly 400 of the embodiment of the present application is applied to an electronic device, which is beneficial to improving the overall stacking of the electronic device, improving the communication capability of the antenna assembly under the use of a horizontal screen or a vertical screen of the electronic device, and ensuring that the electronic device has the capability of SAR detection.

The foregoing describes in detail embodiments of the present application only for aiding in the understanding of the method of the present application and its core ideas. Those skilled in the art will appreciate that the embodiments of the application vary from one embodiment to another and from one application to another, and so forth, the present disclosure should not be construed as limiting the application.

While embodiments of the present application have been illustrated and described above, it should be understood that the above-described embodiments are merely exemplary and are not to be construed as limiting the present application. Accordingly, variations, modifications, alternatives, and alterations to the above described embodiments or drawings may be made by those skilled in the art within the scope of the application as claimed, such improvements and modifications being considered as within the scope of the application as claimed.

Claims

1. An antenna assembly, comprising:

A second antenna comprising a third antenna radiator;

An antenna connector;

a first matching circuit and a second matching circuit;

The first antenna radiator comprises a first coupling end and a first grounding end, the second antenna radiator comprises a second coupling end and a second grounding end, the first coupling end and the second coupling end are respectively positioned at two sides of the first gap and are coupled through the first gap, the first grounding end is provided with a first grounding point, the second grounding end is provided with a second grounding point, and the first antenna radiator is connected with the first matching circuit through the first grounding end so as to be grounded;

The third antenna radiator is provided with a second feed point which is used for being connected with a second feed source;

The first antenna is used for supporting a first resonance mode, a second resonance mode, a third resonance mode and a fourth resonance mode, wherein,

The length from the first grounding end to the first coupling end is 1/8 to 1/4 times of the wavelength corresponding to the center frequency of the first resonance mode;

The length from the second grounding end to the second coupling end is 1/4 times of the wavelength corresponding to the center frequency of the second resonance mode;

the length from the first feed point to the first coupling end is 1/4 times of the wavelength corresponding to the center frequency of the third resonance mode;

the length from the first grounding end to the first coupling end is 3/4 times of the wavelength corresponding to the center frequency of the fourth resonance mode.

2. The antenna assembly of claim 1, wherein the second antenna is configured to support a fifth resonant mode and a sixth resonant mode, wherein,

The length from the third grounding end to the first free end is 1/4 times of the wavelength corresponding to the center frequency of the fifth resonance mode;

The length from the second feed point to the first free end is 1/4 times of the wavelength corresponding to the center frequency of the sixth resonance mode.

3. The antenna assembly of claim 1, further comprising a third matching circuit, a fourth matching circuit, wherein,

The third matching circuit is connected in series between the first feed point and the first feed source;

the fourth matching circuit is connected in series between the second feed point and the second feed source.

4. An antenna assembly according to any of claims 1-3, characterized in that the antenna assembly further comprises:

a third antenna comprising a fourth antenna radiator;

A second gap exists between the fourth antenna radiator and the third antenna radiator;

The fourth antenna radiator comprises a second free end and a fourth grounding end, the first free end and the second free end are respectively positioned at two sides of the second gap and are coupled through the second gap, and the fourth grounding end is provided with a fourth grounding point;

and a third feed point is arranged on the fourth antenna radiator and is used for being connected with a third feed source.

5. The antenna assembly of claim 4 wherein the third antenna is configured to support a seventh resonant mode, an eighth resonant mode, a ninth resonant mode, and a tenth resonant mode, wherein,

The current distribution of the seventh resonance mode is from the third feed point to the third ground;

The length from the fourth grounding end to the second free end is 1/8 to 1/4 times of the wavelength corresponding to the center frequency of the eighth resonance mode;

The length from the third feed point to the second free end is 1/4 times of the wavelength corresponding to the center frequency of the ninth resonance mode;

the length from the third grounding end to the first free end is 3/4 times of the wavelength corresponding to the center frequency of the tenth resonance mode.

6. An antenna assembly according to any of claims 1-3, characterized in that the antenna assembly further comprises:

And one end of the sixth matching circuit is connected with a fifth grounding end on the antenna connecting body, the fifth grounding end is provided with a fifth grounding point, the fifth grounding end is positioned between the first grounding end and the third grounding end, and the other end of the sixth matching circuit is connected with the grounding system connected with the fifth grounding point.

7. The antenna assembly of any one of claims 1-3, further comprising a fifth antenna radiator;

one end of the fifth antenna radiator is connected with the first feed point, and the other end of the fifth antenna radiator is a free end.

8. An antenna assembly according to any of claims 1-3, characterized in that the antenna assembly is adapted to cover at least one of the LTE MHB band, LTE UHB band, NR MHB band, NR UHB band, WIFI 2.4GHz band, WIFI 5GHz band, GPS-L1 band.

9. An electronic device comprising an antenna assembly, the antenna assembly comprising a first antenna, the first antenna comprising a first antenna radiator and a second antenna radiator, a first gap being present between the first antenna radiator and the second antenna radiator;

The first antenna radiator comprises a first coupling end and a first grounding end, the second antenna radiator comprises a second coupling end and a second grounding end, the first coupling end and the second coupling end are respectively positioned at two sides of the first gap and are coupled through the first gap, the first grounding end is provided with a first grounding point, the second grounding end is provided with a second grounding point, and the first antenna radiator is grounded to a system through the first grounding point;

10. The electronic device of claim 9, wherein the antenna assembly further comprises:

A second antenna comprising a third antenna radiator;

the third antenna radiator comprises a first free end (G) and a third grounding end (H), a third grounding point is arranged at the third grounding end, and the third antenna radiator is connected with the ground system through the third grounding end;

11. The electronic device of claim 10, wherein the third antenna radiator comprises a first sub-radiator and a second sub-radiator;

One end of the first sub-radiator is bent and connected with one end of the second sub-radiator, and the other end of the first sub-radiator is the third grounding end;

The other end of the second sub-radiator is the first free end;

the first sub-radiator is located at the first side of the electronic device, and the second sub-radiator is located at the second side of the electronic device;

The second feeding point is located on the first or second sub-radiator.

12. The electronic device of claim 10, wherein the third antenna radiator is located on the first side or the second side of the electronic device.

13. The electronic device of any of claims 10-12, wherein the antenna assembly further comprises an antenna connection, a first matching circuit, and a second matching circuit;

the antenna connector is respectively connected with the first grounding end and the third grounding end;

the first antenna radiator is connected with the first matching circuit through the first grounding end so as to be connected with the ground system;

The third antenna radiator is connected with the second matching circuit through the third grounding end so as to be connected with the ground system.

14. The electronic device of claim 13, wherein the antenna assembly further comprises a third matching circuit, a fourth matching circuit, wherein,

15. The electronic device of any of claims 10-12, wherein the antenna assembly further comprises:

a third antenna comprising a fourth antenna radiator;

a second gap exists between the fourth antenna radiator and the third antenna radiator end;

16. The electronic device of claim 15, wherein the fourth antenna radiator comprises a third sub-radiator and a fourth sub-radiator;

One end of the third sub-radiator is bent and connected with one end of the fourth sub-radiator, and the other end of the third sub-radiator is the second free end;

The other end of the fourth sub-radiator is the fourth grounding end;

the third sub-radiator is located at the first side of the electronic device, and the fourth sub-radiator is located at the second side of the electronic device;

The third feeding point is located on the third sub-radiator or the fourth sub-radiator.

17. The electronic device of claim 15, wherein the fourth antenna radiator is located on the first side or the second side of the electronic device.

18. The electronic device of claim 15, wherein a straightening device is disposed between the first feed and the first antenna radiator;

a straight blocking device is connected in series between the second feed source and the third antenna radiator;

a straight blocking device is connected in series between the third feed source and the fourth antenna radiator;

a straight isolation device is connected in series between the first antenna radiator and the ground system connected with the first grounding point;

A straight isolation device is connected in series between the third antenna radiator and the ground system connected with the third grounding point;

And a straight blocking device is connected in series between the second antenna radiator and the ground system connected with the second grounding point.

19. The electronic device of claim 18, wherein the electronic device further comprises:

A proximity sensor and at least one detection branch;

the detection branch is used for connecting the proximity sensor and the antenna assembly;

The proximity sensor is used for detecting the change of the capacitance signal through the antenna assembly so as to judge whether a user approaches or gets away from the electronic equipment.