ATE157209T1 - Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern - Google Patents

Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern

Info

Publication number
ATE157209T1
ATE157209T1 AT91908821T AT91908821T ATE157209T1 AT E157209 T1 ATE157209 T1 AT E157209T1 AT 91908821 T AT91908821 T AT 91908821T AT 91908821 T AT91908821 T AT 91908821T AT E157209 T1 ATE157209 T1 AT E157209T1
Authority
AT
Austria
Prior art keywords
signals
error signal
coupler
input
amplifier
Prior art date
Application number
AT91908821T
Other languages
English (en)
Inventor
Peter Blakeborough Kenington
Mark Anthony Beach
Andrew Bateman
Joseph Peter Mcgeehan
Original Assignee
British Tech Group
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 British Tech Group filed Critical British Tech Group
Application granted granted Critical
Publication of ATE157209T1 publication Critical patent/ATE157209T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
AT91908821T 1990-04-25 1991-04-25 Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern ATE157209T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909009295A GB9009295D0 (en) 1990-04-25 1990-04-25 Apparatus and method for reducing distortion in amplification

Publications (1)

Publication Number Publication Date
ATE157209T1 true ATE157209T1 (de) 1997-09-15

Family

ID=10674976

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91908821T ATE157209T1 (de) 1990-04-25 1991-04-25 Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern

Country Status (8)

Country Link
US (1) US5157345A (de)
EP (2) EP0678976A1 (de)
JP (1) JP3035345B2 (de)
AT (1) ATE157209T1 (de)
AU (2) AU651774B2 (de)
DE (1) DE69127361T2 (de)
GB (2) GB9009295D0 (de)
WO (1) WO1991016760A1 (de)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148117A (en) * 1991-11-25 1992-09-15 American Nucleonics Corporation Adaptive feed-forward method and apparatus for amplifier noise reduction
JP2804195B2 (ja) * 1992-02-27 1998-09-24 日本無線株式会社 自動制御フィードフォワード非線形歪補償増幅器
US5477187A (en) * 1992-03-19 1995-12-19 Fujitsu Limited Feed forward amplifier
DE69322881T2 (de) * 1992-12-15 1999-05-27 Btg International Ltd., London Verfahren und vorrichtung zur signalverarbeitung mittels referenzsignalen
DE4330288C1 (de) * 1993-01-25 1994-06-23 Arthur Wolf HF-Verstärkerschaltung
US5386198A (en) * 1993-01-28 1995-01-31 Telefonaktiebolaget L M Ericsson Linear amplifier control
US5394120A (en) * 1993-04-13 1995-02-28 Japan Radio Co., Ltd. Device for testing an amplifier
US5396189A (en) * 1993-08-03 1995-03-07 Westech Group, Inc. Adaptive feedback system
US5610554A (en) * 1994-07-28 1997-03-11 Aval Communications Inc. Cancellation loop, for a feed-forward amplifier, employing an adaptive controller
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5489875A (en) * 1994-09-21 1996-02-06 Simon Fraser University Adaptive feedforward linearizer for RF power amplifiers
US5528196A (en) * 1995-01-06 1996-06-18 Spectrian, Inc. Linear RF amplifier having reduced intermodulation distortion
US5644268A (en) * 1995-01-06 1997-07-01 Spectrian, Inc. Feed forward RF amplifier for combined signal and error amplification
US5570063A (en) * 1995-05-18 1996-10-29 Spectrian, Inc. RF power amplifier with signal predistortion for improved linearity
US5694036A (en) * 1995-08-07 1997-12-02 Lucent Technologies Inc. Direction sensor and distortion reduction control circuitry
KR100217416B1 (ko) * 1995-11-16 1999-09-01 윤종용 선형 증폭 장치 및 방법
US5715242A (en) * 1995-12-20 1998-02-03 Ortel; William C. G. System for integrated distribution of switched voice and television on coaxial cable with phase distortion correction
US5742201A (en) * 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier
US5760646A (en) * 1996-03-29 1998-06-02 Spectrian Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier
US5892397A (en) * 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
US5796304A (en) * 1996-04-24 1998-08-18 Powerwave Technologies, Inc. Broadband amplifier with quadrature pilot signal
US5789976A (en) * 1996-06-17 1998-08-04 Corporation De L'ecole Polytechnique Digital adaptive control of feedforward amplifier using frequency domain cancellation
US5862459A (en) * 1996-08-27 1999-01-19 Telefonaktiebolaget Lm Ericsson Method of and apparatus for filtering intermodulation products in a radiocommunication system
DE19650388A1 (de) * 1996-12-05 1998-06-18 Bosch Gmbh Robert Schaltung zur Linearisierung eines Verstärkers
GB2326037A (en) * 1997-06-06 1998-12-09 Nokia Mobile Phones Ltd Maintaining signals in phase quadrature
US5940025A (en) * 1997-09-15 1999-08-17 Raytheon Company Noise cancellation method and apparatus
FI105625B (fi) 1997-10-29 2000-09-15 Nokia Networks Oy Säätömenetelmä ja säätöjärjestely
FI104021B1 (fi) 1997-10-29 1999-10-29 Nokia Networks Oy Adaptaatiomenetelmä ja vahvistinjärjestely
US6133789A (en) * 1997-12-10 2000-10-17 Nortel Networks Corporation Method and system for robustly linearizing a radio frequency power amplifier using vector feedback
US6232835B1 (en) 1998-02-13 2001-05-15 Nortel Networks Limited System and method of linearizing the gain error of a power amplifier
GB9804745D0 (en) * 1998-03-06 1998-04-29 Wireless Systems Int Ltd Predistorter
US6172565B1 (en) * 1998-03-13 2001-01-09 Lucent Technologies Inc. Adaptive joint linearization, equalization and delay alignment for a wideband power amplifier
JP2000004124A (ja) * 1998-06-17 2000-01-07 Nec Corp フィードフォワード増幅器
FR2781102B1 (fr) * 1998-07-10 2000-09-08 France Telecom Dispositif d'amplification pour repeteur de systeme de radiocommunication cellulaire et procede pour sa mise en oeuvre
US6069531A (en) * 1998-08-31 2000-05-30 Lucent Technologies Inc. Feed forward amplifier improvement incorporating an automatic gain and phase controller
US6493543B1 (en) * 1998-10-19 2002-12-10 Powerwave Technologies, Inc. Multichannel amplification system using mask detection
US6166601A (en) * 1999-01-07 2000-12-26 Wiseband Communications Ltd. Super-linear multi-carrier power amplifier
US6204728B1 (en) 1999-01-28 2001-03-20 Maxim Integrated Products, Inc. Radio frequency amplifier with reduced intermodulation distortion
US6348838B1 (en) 1999-04-29 2002-02-19 Netcom, Inc. Optimal power combining for balanced error correction amplifier
US6359509B1 (en) 1999-04-29 2002-03-19 Netcom, Inc. Balanced error correction amplifier and method of removing distortion from an amplified signal
US6208207B1 (en) * 1999-05-05 2001-03-27 Simon Fraser University Adaptive linearizer for RF power amplifiers
US6393372B1 (en) 1999-05-17 2002-05-21 Eugene Rzyski Automated frequency stepping noise measurement system
US6172564B1 (en) 1999-07-30 2001-01-09 Eugene Rzyski Intermodulation product cancellation circuit
JP3949322B2 (ja) * 1999-09-01 2007-07-25 三菱電機株式会社 フィードフォワード増幅器
US6275105B1 (en) 2000-02-07 2001-08-14 Amplix Adaptive linearization of a feedforward amplifier by complex gain stabilization of the error amplifier
US6424213B1 (en) 2000-04-22 2002-07-23 Netcom, Inc. Loss reduction using multiple amplifiers identically divided
US6496064B2 (en) 2000-08-15 2002-12-17 Eugene Rzyski Intermodulation product cancellation circuit
US7015751B2 (en) 2001-06-28 2006-03-21 Simon Fraser University Decorrelated power amplifier linearizers
US6683495B2 (en) 2001-06-28 2004-01-27 Simon Fraser University Reduced architecture for multibranch feedforward power amplifier linearizers
US6734731B2 (en) * 2001-06-28 2004-05-11 Simon Fraser University Self-calibrated power amplifier linearizers
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
US6794938B2 (en) * 2002-03-19 2004-09-21 The University Of North Carolina At Charlotte Method and apparatus for cancellation of third order intermodulation distortion and other nonlinearities
US20040198269A1 (en) * 2002-12-30 2004-10-07 Richard Phillips Linearization of amplified feedback distortion
US7308234B2 (en) * 2005-01-19 2007-12-11 Northrop Grumman Corporation Feedforward spur cancellation approach using low IP amplifier
JP2007013230A (ja) * 2005-06-28 2007-01-18 Nippon Dengyo Kosaku Co Ltd 歪補償増幅回路
DE102008052172B4 (de) 2008-10-17 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Erzeugen eines Korrektursignals
US8243851B2 (en) * 2009-04-01 2012-08-14 Ubidyne, Inc. Radio system and a method for relaying radio signals
EP2569771A1 (de) * 2010-05-10 2013-03-20 Marvell World Trade Ltd. Verfahren und vorrichtung für offset- und verstärkungskorrektur
US8593219B1 (en) * 2012-08-31 2013-11-26 Motorola Solutions, Inc. Method and apparatus for amplifying a radio frequency signal
CN111200485B (zh) * 2018-11-16 2022-08-02 中兴通讯股份有限公司 宽带误差校准参数提取方法、装置及计算机可读存储介质

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541467A (en) * 1969-04-25 1970-11-17 Bell Telephone Labor Inc Feed-forward amplifier with frequency shaping
GB1246209A (en) * 1969-05-21 1971-09-15 Marconi Co Ltd Improvements in or relating to high frequency power amplifying arrangements
US3886470A (en) * 1973-12-04 1975-05-27 Amplifier Design And Service I Feed-forward amplifier system
US3922617A (en) * 1974-11-18 1975-11-25 Cutler Hammer Inc Adaptive feed forward system
US4146844A (en) * 1977-10-31 1979-03-27 Tektronix, Inc. Feed-forward amplifier
GB2080062B (en) * 1980-07-04 1984-06-27 Marconi Co Ltd Improvements in or relating to amplifiers
US4348642A (en) * 1980-08-29 1982-09-07 Rockwell International Corporation Feedforward wideband amplifier
US4389618A (en) * 1981-04-15 1983-06-21 The United States Of America As Represented By The Secretary Of The Navy Adaptive feed-forward system
US4394624A (en) * 1981-08-07 1983-07-19 The United States Of America As Represented By The Secretary Of The Navy Channelized feed-forward system
GB2107540B (en) * 1981-10-14 1985-06-26 Marconi Co Ltd Feedforward amplifiers
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
US4560945A (en) * 1984-09-04 1985-12-24 Westinghouse Electric Corp. Adaptive feedforward cancellation technique that is effective in reducing amplifier harmonic distortion products as well as intermodulation distortion products
GB2167256A (en) * 1984-11-17 1986-05-21 Racal Communications Equip Feedforward amplifiers
US4580105A (en) * 1985-01-25 1986-04-01 At&T Bell Laboratories Automatic reduction of intermodulation products in high power linear amplifiers
JPH0198809A (ja) * 1987-10-12 1989-04-17 Ishikawajima Harima Heavy Ind Co Ltd 灰溶融炉のプッシャー制御装置
US4879519A (en) * 1988-10-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Labs Predistortion compensated linear amplifier
US4885551A (en) * 1988-10-31 1989-12-05 American Telephone And Telegraph Company At&T Bell Laboratories Feed forward linear amplifier
GB8921270D0 (en) * 1989-09-20 1989-11-08 Telephone Cables Ltd Optical aerial cable
GB2238196A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pre-distortion
GB2238197A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed-forward amplifier with amplitude and phase pre-correction
GB2238195A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pilot tone cancellation

Also Published As

Publication number Publication date
GB2244881B (en) 1993-05-05
DE69127361D1 (de) 1997-09-25
GB9009295D0 (en) 1990-06-20
JP3035345B2 (ja) 2000-04-24
GB2244881A (en) 1991-12-11
JPH05509446A (ja) 1993-12-22
DE69127361T2 (de) 1997-12-18
AU7790591A (en) 1991-11-11
WO1991016760A1 (en) 1991-10-31
EP0526557B1 (de) 1997-08-20
US5157345A (en) 1992-10-20
AU651774B2 (en) 1994-07-28
EP0678976A1 (de) 1995-10-25
GB9108920D0 (en) 1991-06-12
AU655730B2 (en) 1995-01-05
AU4879993A (en) 1993-12-09
EP0526557A1 (de) 1993-02-10

Similar Documents

Publication Publication Date Title
ATE157209T1 (de) Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern
US5789976A (en) Digital adaptive control of feedforward amplifier using frequency domain cancellation
CA2083589A1 (en) Adaptive feed-forward method and apparatus for amplifier noise reduction
JP4236814B2 (ja) ディジタル相互変調制御フィード・フォワード増幅器
ATE213108T1 (de) Verfahren zur korrektur von nichtlinearen verzerrungen in einem verstärker und ein solches verfahren verwendenden funksenders
FI982298A (fi) Menetelmä ja kytkentä vaihevirheen korjaamiseksi tehovahvistimen linearisointisilmukassa
US5117197A (en) High-power feed-forward microwave amplifier apparatus with out-of-band intermodulation product suppression
US20060160502A1 (en) Feedforward spur cancellation approach using low IP amplifier
EP0639007B1 (de) Radioempfänger
CA1091309A (en) Feed-forward amplifier with simple resistive coupling
US4352072A (en) Feedforward amplifier with enhanced stability into loads with high VSWR
ATE9752T1 (de) Verfahren zur breitbandigen linearisierung von mikrowellenverstaerkern.
US4346479A (en) Compensation for transmission element nonlinearities in a radio relay transmission system
JPS56126313A (en) Intermediate frequency control method for fm receiver
JPS5516527A (en) Ultra-high frequency amplifier
WO2002048719A3 (en) Method and apparatus for accurate measurement of communications signals
IE903084A1 (en) Apparatus and method for reducing distortion in an analog¹optical transmission system
JPS5523670A (en) Waveform equalizer
JPH06188753A (ja) 直線性補償方式
SU1083370A1 (ru) Устройство компенсации помехи
GB2228845A (en) Linearisation by signal cancellation to remove unwanted signals in a transmission
JPS62220006A (ja) フイ−ドフオワ−ド増幅器の調整方法及びフイ−ドフオワ−ド増幅器
GB2335813A (en) A cubic and higher order predistorter for linearizing an amplifier
JPS5936406A (ja) ブリデイスト−シヨン方式歪補償回路
JPH0927718A (ja) 歪特性改善回路

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties