ZA915313B - Process for compensating nonlinearities in an amplifier circuit - Google Patents

Process for compensating nonlinearities in an amplifier circuit

Info

Publication number
ZA915313B
ZA915313B ZA915313A ZA915313A ZA915313B ZA 915313 B ZA915313 B ZA 915313B ZA 915313 A ZA915313 A ZA 915313A ZA 915313 A ZA915313 A ZA 915313A ZA 915313 B ZA915313 B ZA 915313B
Authority
ZA
South Africa
Prior art keywords
amplifier circuit
compensating nonlinearities
nonlinearities
compensating
amplifier
Prior art date
Application number
ZA915313A
Other languages
English (en)
Inventor
Hans U Boksberger
U Boksberger Hans
Narindra N Puri
N Puri Narindra
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Publication of ZA915313B publication Critical patent/ZA915313B/xx

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
    • 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
    • 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
    • H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
    • 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
    • H03F2201/3231—Adaptive predistortion using phase feedback from the output of the main amplifier

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
ZA915313A 1990-07-12 1991-07-09 Process for compensating nonlinearities in an amplifier circuit ZA915313B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90113326A EP0465709A1 (de) 1990-07-12 1990-07-12 Verfahren zur Kompensation von Nichtlinearitäten einer Verstärkerschaltung

Publications (1)

Publication Number Publication Date
ZA915313B true ZA915313B (en) 1992-03-25

Family

ID=8204210

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA915313A ZA915313B (en) 1990-07-12 1991-07-09 Process for compensating nonlinearities in an amplifier circuit

Country Status (12)

Country Link
US (1) US5164678A (zh)
EP (1) EP0465709A1 (zh)
JP (1) JPH04233810A (zh)
KR (1) KR920003626A (zh)
CN (1) CN1023173C (zh)
BR (1) BR9102948A (zh)
CA (1) CA2046457A1 (zh)
CS (1) CS210491A3 (zh)
HU (1) HUT60576A (zh)
PL (1) PL290991A1 (zh)
YU (1) YU120591A (zh)
ZA (1) ZA915313B (zh)

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US5489879A (en) * 1995-02-16 1996-02-06 Seiko Communication Systems, Inc. Amplitude and phase error normalization of subcarrier generator
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
GB9804745D0 (en) * 1998-03-06 1998-04-29 Wireless Systems Int Ltd Predistorter
GB9804835D0 (en) 1998-03-06 1998-04-29 Wireless Systems Int Ltd Predistorter
US6046635A (en) * 1998-04-08 2000-04-04 Powerwave Technologies, Inc. Dynamic predistortion compensation for a power amplifier
US6600792B2 (en) * 1998-06-26 2003-07-29 Qualcomm Incorporated Predistortion technique for high power amplifiers
US6236837B1 (en) 1998-07-30 2001-05-22 Motorola, Inc. Polynomial Predistortion linearizing device, method, phone and base station
US6240278B1 (en) 1998-07-30 2001-05-29 Motorola, Inc. Scalar cost function based predistortion linearizing device, method, phone and basestation
US6580320B1 (en) * 1999-02-12 2003-06-17 Andrew Corporation Signal processing apparatus
EP1032121A1 (fr) * 1999-02-26 2000-08-30 Koninklijke Philips Electronics N.V. Appareil électronique comportant un amplificateur de puissance
WO2000074232A1 (fr) * 1999-05-28 2000-12-07 Fujitsu Limited Amplificateur de compensation de distorsion du type predistorsion
GB2351624B (en) 1999-06-30 2003-12-03 Wireless Systems Int Ltd Reducing distortion of signals
EP1204216B1 (en) * 1999-07-28 2011-04-20 Fujitsu Limited Method and apparatus for distortion compensation of radio device
GB2354126B (en) * 1999-09-13 2004-07-21 Wireless Systems Int Ltd Signal processing
DE19962340B4 (de) * 1999-12-23 2005-11-03 Robert Bosch Gmbh Sender zum Versenden von Signalen über Funkkanäle und Verfahren zum Senden von Signalen über Funkkanäle
DE10009596A1 (de) * 2000-02-29 2001-08-30 Bosch Gmbh Robert Vorrichtung zur Linearisierung eines Hochfrequenz-Verstärkers
US6960956B2 (en) * 2001-01-12 2005-11-01 Telefonatiebolaget L.M. Ericsson Telefonplan Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components
JP3690988B2 (ja) * 2001-02-01 2005-08-31 株式会社日立国際電気 プリディストーション歪み補償装置
US6593806B1 (en) * 2001-08-10 2003-07-15 Cirrus Logic, Inc. Circuits and methods for compensating switched mode amplifiers
WO2003081793A1 (en) * 2002-03-19 2003-10-02 Powerwave Technologies, Inc. System and method for eliminating signal zero crossings in single and multiple channel communication systems
US7149482B2 (en) * 2003-09-16 2006-12-12 Andrew Corporation Compensation of filters in radio transmitters
JP4255849B2 (ja) * 2004-01-29 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ べき級数型ディジタルプリディストータ
JP4417174B2 (ja) 2004-05-19 2010-02-17 株式会社日立国際電気 プリディストータ
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
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US9106316B2 (en) 2005-10-24 2015-08-11 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification
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
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
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
US7620129B2 (en) 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
DE102007028695A1 (de) 2007-06-21 2009-01-02 Kathrein-Austria Ges.M.B.H. Verfahren und Vorrichtung zur Erzeugung eines amplituden-modulierten Signals
WO2009005768A1 (en) 2007-06-28 2009-01-08 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
CN101505139B (zh) * 2008-11-17 2011-08-17 深圳市云海通讯股份有限公司 一种数字线性预畸变方法和系统
US8390376B2 (en) * 2010-11-16 2013-03-05 Telefonaktiebolaget Lm Ericsson (Publ) Non-linear model with tap output normalization
US20120195392A1 (en) * 2011-02-02 2012-08-02 Provigent Ltd. Predistortion in split-mount wireless communication systems
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
KR20140034895A (ko) 2011-06-02 2014-03-20 파커비전, 인크. 안테나 제어
US8615204B2 (en) * 2011-08-26 2013-12-24 Qualcomm Incorporated Adaptive interference cancellation for transmitter distortion calibration in multi-antenna transmitters
KR20160058855A (ko) 2013-09-17 2016-05-25 파커비전, 인크. 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템
JP6569174B2 (ja) * 2015-02-06 2019-09-04 日本無線株式会社 前置歪み生成装置及び前置歪み生成方法

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JPS58105658A (ja) * 1981-12-17 1983-06-23 Nec Corp 適応型変調装置
DE3221911C1 (de) * 1982-06-11 1983-11-17 Standard Elektrik Lorenz Ag, 7000 Stuttgart Hochfrequenzleistungsverstaerker mit einer Modulationseinrichtung
US4700151A (en) * 1985-03-20 1987-10-13 Nec Corporation Modulation system capable of improving a transmission system
DE3522408A1 (de) * 1985-06-22 1987-01-02 Ant Nachrichtentech Arbeitspunktstabilisierter linearisierter wanderfeldroehrenverstaerker
DE3614785A1 (de) * 1986-05-02 1988-01-21 Rohde & Schwarz Hilfssystem zur entzerrung frequenzabhaengiger nichtlinearer systeme insbesondere verstaerker
FR2637431B1 (fr) * 1988-09-30 1990-11-09 Labo Electronique Physique Circuit de predistorsion adaptative
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion

Also Published As

Publication number Publication date
KR920003626A (ko) 1992-02-29
BR9102948A (pt) 1992-02-11
PL290991A1 (en) 1992-08-10
HUT60576A (en) 1992-09-28
HU912340D0 (en) 1991-12-30
JPH04233810A (ja) 1992-08-21
CN1023173C (zh) 1993-12-15
US5164678A (en) 1992-11-17
CA2046457A1 (en) 1992-01-13
YU120591A (sh) 1994-06-10
CN1058122A (zh) 1992-01-22
EP0465709A1 (de) 1992-01-15
CS210491A3 (en) 1992-02-19

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