FI19992411A - Feedforward kompensaation tehovahvistinta varten - Google Patents

Feedforward kompensaation tehovahvistinta varten

Info

Publication number
FI19992411A
FI19992411A FI992411A FI19992411A FI19992411A FI 19992411 A FI19992411 A FI 19992411A FI 992411 A FI992411 A FI 992411A FI 19992411 A FI19992411 A FI 19992411A FI 19992411 A FI19992411 A FI 19992411A
Authority
FI
Finland
Prior art keywords
power amplifier
feedforward compensation
feedforward
compensation
amplifier
Prior art date
Application number
FI992411A
Other languages
English (en)
Swedish (sv)
Inventor
Richard D Posner
Kwang Kim
Charles R Gentzler
Do B Shin
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 FI19992411A publication Critical patent/FI19992411A/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • 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
    • H03F1/38—Positive-feedback circuit arrangements without negative feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
FI992411A 1998-11-10 1999-11-09 Feedforward kompensaation tehovahvistinta varten FI19992411A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/189,642 US6531918B1 (en) 1998-11-10 1998-11-10 Low cost, pilotless, feed forward compensation for a power amplifier

Publications (1)

Publication Number Publication Date
FI19992411A true FI19992411A (fi) 2000-05-10

Family

ID=22698184

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992411A FI19992411A (fi) 1998-11-10 1999-11-09 Feedforward kompensaation tehovahvistinta varten

Country Status (5)

Country Link
US (1) US6531918B1 (fi)
EP (1) EP1001524A1 (fi)
KR (1) KR20000035329A (fi)
CA (1) CA2289128A1 (fi)
FI (1) FI19992411A (fi)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020052495A (ko) * 2000-12-26 2002-07-04 엘지전자 주식회사 알에프 전력증폭기의 디지탈 선형화장치
US6760230B2 (en) * 2001-02-28 2004-07-06 Andrew Corporation Compact, high efficiency, high isolation power amplifier
US6771125B2 (en) * 2002-03-01 2004-08-03 Andrew Corporation Tuning feed-forward amplifiers and the like
US6919765B2 (en) * 2003-08-22 2005-07-19 Andrew Corporation Amplifier linearization by pre-distorting a decomposed input signal
US7038541B2 (en) * 2004-05-28 2006-05-02 Andrew Corporation Adaptive feed-forward amplifiers and the like
US7346317B2 (en) * 2005-04-04 2008-03-18 Freescale Semiconductor, Inc. Dynamic gain and phase compensation for power amplifier load switching
US7856105B2 (en) * 2006-03-09 2010-12-21 Andrew Llc Apparatus and method for processing of amplifier linearization signals
DE102008052172B4 (de) 2008-10-17 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Erzeugen eines Korrektursignals
CN101656518B (zh) * 2009-09-07 2012-01-11 深圳市云海通讯股份有限公司 一种前馈功放电路及利用其实现功率放大的方法
US9564932B1 (en) * 2015-07-16 2017-02-07 LGS Innovations LLC Software defined radio front end

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5485120A (en) * 1994-07-28 1996-01-16 Aval Communications Inc. Feed-forward power amplifier system with adaptive control and control method
US5694036A (en) * 1995-08-07 1997-12-02 Lucent Technologies Inc. Direction sensor and distortion reduction control circuitry
US5619168A (en) * 1995-08-07 1997-04-08 Lucent Technologies Inc. Distortion creation and reduction circuit
RU2142670C1 (ru) * 1995-11-16 1999-12-10 Самсунг Электроникс Ко., Лтд. Устройство линейного усиления мощности
US5867064A (en) * 1996-08-19 1999-02-02 Motorola, Inc. Method and apparatus for improving intermodulation in a feed-forward amplifier
DE19650388A1 (de) * 1996-12-05 1998-06-18 Bosch Gmbh Robert Schaltung zur Linearisierung eines Verstärkers

Also Published As

Publication number Publication date
KR20000035329A (ko) 2000-06-26
CA2289128A1 (en) 2000-05-10
US6531918B1 (en) 2003-03-11
EP1001524A1 (en) 2000-05-17

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