SE8306109L - diversity combiner - Google Patents

diversity combiner

Info

Publication number
SE8306109L
SE8306109L SE8306109A SE8306109A SE8306109L SE 8306109 L SE8306109 L SE 8306109L SE 8306109 A SE8306109 A SE 8306109A SE 8306109 A SE8306109 A SE 8306109A SE 8306109 L SE8306109 L SE 8306109L
Authority
SE
Sweden
Prior art keywords
signal
phase
signals
sub
detectors
Prior art date
Application number
SE8306109A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8306109D0 (en
Inventor
M I Lennartsson
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8306109A priority Critical patent/SE8306109L/en
Publication of SE8306109D0 publication Critical patent/SE8306109D0/en
Priority to AU36129/84A priority patent/AU3612984A/en
Priority to DE19843490533 priority patent/DE3490533T1/en
Priority to FI852459A priority patent/FI852459A0/en
Priority to PCT/SE1984/000375 priority patent/WO1985002309A1/en
Priority to JP59504211A priority patent/JPS61500405A/en
Priority to GB08516636A priority patent/GB2159374A/en
Publication of SE8306109L publication Critical patent/SE8306109L/en
Priority to DK304685A priority patent/DK304685A/en
Priority to NO852728A priority patent/NO852728L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

A diversity combiner for adding, before detection, two or more received radio signals having defined carrier waves of the same frequency contains for each of the radio signals (S1; S2) a phase shifter (4) for dividing the radio signals into a sub-signal (S1i; S2i) forming an in-phase signal and a sub-signal (S1q; S2q) forming a quadrature signal, for each of the sub-signals a phase-sensitive detector (2) controlled by a reference signal (A) common to all the detectors, and having an output signal of zero frequency direct-voltage connected to a modulation input of a subsequent modulator (Z2-Z5) for converting the radio signal to an alternating voltage signal (C) of the same phase angle as that of the reference signal (A), and for all the radio signal together an adder (Z8) for adding the cophasal alternating voltage signals from all the means for conversion (Z2-Z5) to a sum-signal (E) in which the received radio signals are added, the sum signal (E) being connected to the control inputs of the phase-sensitive detectors (2) such as to act there as the common reference signal for all the detectors.
SE8306109A 1983-11-07 1983-11-07 diversity combiner SE8306109L (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE8306109A SE8306109L (en) 1983-11-07 1983-11-07 diversity combiner
AU36129/84A AU3612984A (en) 1983-11-07 1984-11-05 Diversity combiner
DE19843490533 DE3490533T1 (en) 1983-11-07 1984-11-05 Diversity combiner
FI852459A FI852459A0 (en) 1983-11-07 1984-11-05 DIVERSITETSKOMBINATOR.
PCT/SE1984/000375 WO1985002309A1 (en) 1983-11-07 1984-11-05 Diversity combiner
JP59504211A JPS61500405A (en) 1983-11-07 1984-11-05 Diversity coupling device
GB08516636A GB2159374A (en) 1983-11-07 1984-11-05 Diversity combiner
DK304685A DK304685A (en) 1983-11-07 1985-07-03 diversity combiner
NO852728A NO852728L (en) 1983-11-07 1985-07-05 Diversity combiner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8306109A SE8306109L (en) 1983-11-07 1983-11-07 diversity combiner

Publications (2)

Publication Number Publication Date
SE8306109D0 SE8306109D0 (en) 1983-11-07
SE8306109L true SE8306109L (en) 1985-05-08

Family

ID=20353209

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306109A SE8306109L (en) 1983-11-07 1983-11-07 diversity combiner

Country Status (9)

Country Link
JP (1) JPS61500405A (en)
AU (1) AU3612984A (en)
DE (1) DE3490533T1 (en)
DK (1) DK304685A (en)
FI (1) FI852459A0 (en)
GB (1) GB2159374A (en)
NO (1) NO852728L (en)
SE (1) SE8306109L (en)
WO (1) WO1985002309A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62143527A (en) * 1985-12-18 1987-06-26 Nec Corp In-phase synthesizing system
DE3741698A1 (en) * 1987-12-09 1989-06-29 Blaupunkt Werke Gmbh RECEIVER FOR RADIO WAVES WITH SEVERAL ANTENNAS
GB2280800B (en) * 1993-07-16 1997-11-12 Plessey Semiconductors Ltd Equalisation arrangement
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US20130078934A1 (en) 2011-04-08 2013-03-28 Gregory Rawlins Systems and Methods of RF Power Transmission, Modulation, and Amplification
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2009005768A1 (en) 2007-06-28 2009-01-08 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
EP2715867A4 (en) 2011-06-02 2014-12-17 Parkervision Inc Antenna control
WO2015042142A1 (en) 2013-09-17 2015-03-26 Parkervision, Inc. Method, apparatus and system for rendering an information bearing function of time

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205014A1 (en) * 1982-02-12 1983-09-01 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang PHASE CORRECTION SWITCHING IN A DIVERSITY RECEIVING SYSTEM

Also Published As

Publication number Publication date
AU3612984A (en) 1985-06-03
DK304685D0 (en) 1985-07-03
SE8306109D0 (en) 1983-11-07
DK304685A (en) 1985-07-03
FI852459A7 (en) 1985-06-20
GB8516636D0 (en) 1985-08-07
FI852459L (en) 1985-06-20
FI852459A0 (en) 1985-06-20
GB2159374A (en) 1985-11-27
JPS61500405A (en) 1986-03-06
NO852728L (en) 1985-07-05
DE3490533T1 (en) 1985-10-03
WO1985002309A1 (en) 1985-05-23

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Legal Events

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NAV Patent application has lapsed

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Effective date: 19880601