BR9906348A - Compensação de predistorção dinâmica para um amplificador de potência - Google Patents

Compensação de predistorção dinâmica para um amplificador de potência

Info

Publication number
BR9906348A
BR9906348A BR9906348-4A BR9906348A BR9906348A BR 9906348 A BR9906348 A BR 9906348A BR 9906348 A BR9906348 A BR 9906348A BR 9906348 A BR9906348 A BR 9906348A
Authority
BR
Brazil
Prior art keywords
power amplifier
amplifier
output
dynamic
added
Prior art date
Application number
BR9906348-4A
Other languages
English (en)
Inventor
Charles R Gentzler
Original Assignee
Powerwave Technologies Inc
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 Powerwave Technologies Inc filed Critical Powerwave Technologies Inc
Publication of BR9906348A publication Critical patent/BR9906348A/pt

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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

Patente de Invenção: <B>"COMPENSAçãO DE PREDISTORçãO DINâMICA PARA UM AMPLIFICADOR DE POTêNCIA"<D>. Uma disposição de amplificador para amplificar uma entrada (20) utiliza um amplificador de potência primário de distorção (14) tal como um que opera como um amplificador da classe AB. Um sinal de predistorção é adicionado ao sinal de entrada para compensar a distorção adicionada pelo amplificador de potência primário (14). O sinal de predistorção pode ser modificado dinamicamente para melhorar substancialmente, pelo menos os componentes de intermodulação de terceira ordem na saída (18) do amplificador de potência. Um processador controlado digitalmente (90) modifica iterativamente vários controles de fase e de ganho para ajustar a saída do amplificador. As linhas de controle de ganho e de fase diferentes são atualizadas iterativamente em razões diferentes.
BR9906348-4A 1998-04-08 1999-04-07 Compensação de predistorção dinâmica para um amplificador de potência BR9906348A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/057,332 US6046635A (en) 1998-04-08 1998-04-08 Dynamic predistortion compensation for a power amplifier
PCT/US1999/007648 WO1999052205A1 (en) 1998-04-08 1999-04-07 Dynamic predistortion compensation for a power amplifier

Publications (1)

Publication Number Publication Date
BR9906348A true BR9906348A (pt) 2000-09-19

Family

ID=22009939

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9906348-4A BR9906348A (pt) 1998-04-08 1999-04-07 Compensação de predistorção dinâmica para um amplificador de potência

Country Status (7)

Country Link
US (1) US6046635A (pt)
EP (1) EP0988694B1 (pt)
KR (1) KR20010013534A (pt)
BR (1) BR9906348A (pt)
CA (1) CA2293337C (pt)
DE (1) DE69925887T2 (pt)
WO (1) WO1999052205A1 (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4634557B2 (ja) * 1999-11-30 2011-02-16 富士通株式会社 信号キャンセル方法及びその装置
JP3877937B2 (ja) * 2000-05-18 2007-02-07 株式会社エヌ・ティ・ティ・ドコモ フィードフォワード増幅器
US6420929B1 (en) 2001-08-23 2002-07-16 Thomas Ha N way cancellation coupler for power amplifier
US6700442B2 (en) * 2001-11-20 2004-03-02 Thomas Quang Ha N way phase cancellation power amplifier
US6700439B2 (en) 2002-04-11 2004-03-02 Andrew Corporation Zero-bias bypass switch
US6812786B2 (en) 2002-04-11 2004-11-02 Andrew Corporation Zero-bias bypass switching circuit using mismatched 90 degrees hybrid
US6930547B2 (en) * 2002-08-09 2005-08-16 Andrew Corporation Linearizing LINC amplifiers using pre-distortion
US7038540B2 (en) 2003-02-14 2006-05-02 Powerwave Technologies, Inc. Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier
US6812792B2 (en) * 2003-01-02 2004-11-02 Harris Corporation Precorrection of a nonlinear amplifier
US7403573B2 (en) * 2003-01-15 2008-07-22 Andrew Corporation Uncorrelated adaptive predistorter
US7729668B2 (en) 2003-04-03 2010-06-01 Andrew Llc Independence between paths that predistort for memory and memory-less distortion in power amplifiers
US6972622B2 (en) * 2003-05-12 2005-12-06 Andrew Corporation Optimization of error loops in distributed power amplifiers
US7259630B2 (en) * 2003-07-23 2007-08-21 Andrew Corporation Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter
US6963242B2 (en) * 2003-07-31 2005-11-08 Andrew Corporation Predistorter for phase modulated signals with low peak to average ratios
US7023273B2 (en) * 2003-10-06 2006-04-04 Andrew Corporation Architecture and implementation methods of digital predistortion circuitry
CN101656512B (zh) * 2008-08-18 2012-06-27 富士通株式会社 功率放大器非线性程度度量装置、方法和预失真补偿装置
US9094067B2 (en) 2012-09-12 2015-07-28 Mediatek Singapore Pte. Ltd. Method and apparatus for calibrating an envelope tracking system
CN111121608B (zh) * 2019-12-25 2021-03-26 枣阳市米朗科技有限公司 一种利用肖特基二极管对电涡流传感器输出线性进行多级修正的电路
CN111010095B (zh) * 2019-12-27 2021-11-09 湖南华诺星空电子技术有限公司 一种无线通信系统的宽带功放线性化处理方法及系统

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471798A (en) * 1967-12-26 1969-10-07 Bell Telephone Labor Inc Feed-forward amplifier
US3755754A (en) * 1972-02-04 1973-08-28 Varian Associates Predistortion compensation for a microwave amplifier
US3725806A (en) * 1972-06-09 1973-04-03 Bell Telephone Labor Inc Distortion reduction in a repeatered transmission system
US3825843A (en) * 1973-06-08 1974-07-23 Bell Telephone Labor Inc Selective distortion compensation circuit
FR2418981A1 (fr) * 1978-03-03 1979-09-28 Lignes Telegraph Telephon Circuit d'amplification pour telecommunication en hyperfrequence
US4291277A (en) * 1979-05-16 1981-09-22 Harris Corporation Adaptive predistortion technique for linearizing a power amplifier for digital data systems
US4453133A (en) * 1982-04-05 1984-06-05 Bell Telephone Laboratories, Incorporated Active predistorter for linearity compensation
US4564816A (en) * 1984-05-09 1986-01-14 Rca Corporation Predistortion circuit
US4554514A (en) * 1984-12-21 1985-11-19 Rca Corporation Predistortion circuit with feedback
US4588958A (en) * 1985-03-29 1986-05-13 Rca Corporation Adjustable reflective predistortion circuit
US4943782A (en) * 1988-03-21 1990-07-24 Hughes Aircraft Company Four-pass phase conjugate optical amplifier system and method
US4879519A (en) * 1988-10-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Labs Predistortion compensated linear amplifier
US4882547A (en) * 1988-11-15 1989-11-21 General Electric Company Linearizer control system
US5252930A (en) * 1989-09-07 1993-10-12 Ortel Corporation Predistorter for linearization of electronic and optical signals
US5132639A (en) * 1989-09-07 1992-07-21 Ortel Corporation Predistorter for linearization of electronic and optical signals
GB2238196A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pre-distortion
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
US5334946A (en) * 1990-04-25 1994-08-02 British Technology Group Limited Apparatus and method for reducing distortion in amplification
CA2046413C (en) * 1990-07-11 1994-01-04 Shoichi Narahashi Feed-forward amplifier
EP0465709A1 (de) * 1990-07-12 1992-01-15 Thomcast Ag Verfahren zur Kompensation von Nichtlinearitäten einer Verstärkerschaltung
US5170495A (en) * 1990-10-31 1992-12-08 Northern Telecom Limited Controlling clipping in a microwave power amplifier
US5193224A (en) * 1991-04-24 1993-03-09 Northern Telecom Limited Adaptive phase control for a power amplifier predistorter
US5237288A (en) * 1992-06-05 1993-08-17 Sea, Inc. RF power amplifier linearization
JPH07147547A (ja) * 1993-11-24 1995-06-06 Nec Corp フィードフォワード型歪補償回路
IT1265271B1 (it) * 1993-12-14 1996-10-31 Alcatel Italia Sistema di predistorsione in banda base per la linearizzazione adattativa di amplificatori di potenza
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5444418A (en) * 1994-07-29 1995-08-22 Motorola, Inc. Method and apparatus for feedforward power amplifying
US5523716A (en) * 1994-10-13 1996-06-04 Hughes Aircraft Company Microwave predistortion linearizer
US5621354A (en) * 1995-10-17 1997-04-15 Motorola, Inc. Apparatus and method for performing error corrected amplification in a radio frequency system
US5789976A (en) * 1996-06-17 1998-08-04 Corporation De L'ecole Polytechnique Digital adaptive control of feedforward amplifier using frequency domain cancellation
US5867064A (en) * 1996-08-19 1999-02-02 Motorola, Inc. Method and apparatus for improving intermodulation in a feed-forward amplifier

Also Published As

Publication number Publication date
US6046635A (en) 2000-04-04
EP0988694A4 (en) 2002-06-12
EP0988694A1 (en) 2000-03-29
CA2293337C (en) 2004-10-26
KR20010013534A (ko) 2001-02-26
WO1999052205A1 (en) 1999-10-14
CA2293337A1 (en) 1999-10-14
DE69925887D1 (de) 2005-07-28
EP0988694B1 (en) 2005-06-22
DE69925887T2 (de) 2006-04-20

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.