DE69127361D1 - Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern - Google Patents

Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern

Info

Publication number
DE69127361D1
DE69127361D1 DE69127361T DE69127361T DE69127361D1 DE 69127361 D1 DE69127361 D1 DE 69127361D1 DE 69127361 T DE69127361 T DE 69127361T DE 69127361 T DE69127361 T DE 69127361T DE 69127361 D1 DE69127361 D1 DE 69127361D1
Authority
DE
Germany
Prior art keywords
signals
error signal
coupler
input
components
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69127361T
Other languages
English (en)
Other versions
DE69127361T2 (de
Inventor
Peter Kenington
Mark Beach
Andrew Roseacre Crowe Bateman
Joseph Mcgeehan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
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 Technology Group Ltd filed Critical British Technology Group Ltd
Publication of DE69127361D1 publication Critical patent/DE69127361D1/de
Application granted granted Critical
Publication of DE69127361T2 publication Critical patent/DE69127361T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE69127361T 1990-04-25 1991-04-25 Vorrichtung und verfahren zur verzerrungsverminderung in verstärkern Expired - Fee Related DE69127361T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909009295A GB9009295D0 (en) 1990-04-25 1990-04-25 Apparatus and method for reducing distortion in amplification
PCT/GB1991/000659 WO1991016760A1 (en) 1990-04-25 1991-04-25 Apparatus and method for reducing distortion in amplification

Publications (2)

Publication Number Publication Date
DE69127361D1 true DE69127361D1 (de) 1997-09-25
DE69127361T2 DE69127361T2 (de) 1997-12-18

Family

ID=10674976

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127361T Expired - Fee Related DE69127361T2 (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) EP0526557B1 (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)

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US5489875A (en) * 1994-09-21 1996-02-06 Simon Fraser University Adaptive feedforward linearizer for RF power amplifiers
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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
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US5742201A (en) * 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave 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
US5760646A (en) * 1996-03-29 1998-06-02 Spectrian Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier
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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
FI104021B (fi) * 1997-10-29 1999-10-29 Nokia Networks Oy Adaptaatiomenetelmä ja vahvistinjärjestely
FI105625B (fi) 1997-10-29 2000-09-15 Nokia Networks Oy Säätömenetelmä ja säätöjärjestely
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
US6359509B1 (en) 1999-04-29 2002-03-19 Netcom, Inc. Balanced error correction amplifier and method of removing distortion from an amplified signal
US6348838B1 (en) 1999-04-29 2002-02-19 Netcom, Inc. Optimal power combining for balanced error correction amplifier
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
US6734731B2 (en) 2001-06-28 2004-05-11 Simon Fraser University Self-calibrated power amplifier linearizers
US6683495B2 (en) * 2001-06-28 2004-01-27 Simon Fraser University Reduced architecture for multibranch feedforward power amplifier linearizers
US7015751B2 (en) * 2001-06-28 2006-03-21 Simon Fraser University Decorrelated 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
CN102893334B (zh) * 2010-05-10 2016-04-13 马维尔国际贸易有限公司 用于偏移和增益纠正的方法和装置
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

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GB1246209A (en) * 1969-05-21 1971-09-15 Marconi Co Ltd Improvements in or relating to high frequency power amplifying arrangements
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US3922617A (en) * 1974-11-18 1975-11-25 Cutler Hammer Inc Adaptive feed forward system
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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
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GB2238197A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed-forward amplifier with amplitude and phase pre-correction

Also Published As

Publication number Publication date
GB9009295D0 (en) 1990-06-20
ATE157209T1 (de) 1997-09-15
AU655730B2 (en) 1995-01-05
GB2244881A (en) 1991-12-11
AU7790591A (en) 1991-11-11
EP0526557B1 (de) 1997-08-20
WO1991016760A1 (en) 1991-10-31
AU4879993A (en) 1993-12-09
EP0526557A1 (de) 1993-02-10
GB9108920D0 (en) 1991-06-12
JP3035345B2 (ja) 2000-04-24
EP0678976A1 (de) 1995-10-25
JPH05509446A (ja) 1993-12-22
GB2244881B (en) 1993-05-05
US5157345A (en) 1992-10-20
AU651774B2 (en) 1994-07-28
DE69127361T2 (de) 1997-12-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BTG INTERNATIONAL LTD., LONDON, GB

8339 Ceased/non-payment of the annual fee