DE69422543D1 - Verzerrungsarmer vorwärtsgeregelter Verstärker - Google Patents

Verzerrungsarmer vorwärtsgeregelter Verstärker

Info

Publication number
DE69422543D1
DE69422543D1 DE69422543T DE69422543T DE69422543D1 DE 69422543 D1 DE69422543 D1 DE 69422543D1 DE 69422543 T DE69422543 T DE 69422543T DE 69422543 T DE69422543 T DE 69422543T DE 69422543 D1 DE69422543 D1 DE 69422543D1
Authority
DE
Germany
Prior art keywords
low distortion
feedforward amplifier
distortion feedforward
amplifier
low
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 - Lifetime
Application number
DE69422543T
Other languages
English (en)
Other versions
DE69422543T2 (de
Inventor
Robert Evan Myer
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69422543D1 publication Critical patent/DE69422543D1/de
Publication of DE69422543T2 publication Critical patent/DE69422543T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H03F2201/3218—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion the main amplifier or error amplifier being a feedforward amplifier

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE69422543T 1993-04-19 1994-04-13 Verzerrungsarmer vorwärtsgeregelter Verstärker Expired - Lifetime DE69422543T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/049,780 US5304945A (en) 1993-04-19 1993-04-19 Low-distortion feed-forward amplifier

Publications (2)

Publication Number Publication Date
DE69422543D1 true DE69422543D1 (de) 2000-02-17
DE69422543T2 DE69422543T2 (de) 2000-07-27

Family

ID=21961697

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69422543T Expired - Lifetime DE69422543T2 (de) 1993-04-19 1994-04-13 Verzerrungsarmer vorwärtsgeregelter Verstärker

Country Status (7)

Country Link
US (1) US5304945A (de)
EP (1) EP0621684B1 (de)
JP (1) JPH0722856A (de)
KR (1) KR100315569B1 (de)
CN (1) CN1098572A (de)
DE (1) DE69422543T2 (de)
FI (1) FI110396B (de)

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US5625871A (en) * 1994-09-30 1997-04-29 Lucent Technologies Inc. Cellular communications system with multicarrier signal processing
US5570350A (en) * 1994-09-30 1996-10-29 Lucent Technologies Inc. CDMA cellular communications with multicarrier signal processing
US5694395A (en) * 1994-09-30 1997-12-02 Lucent Technologies, Inc. Method and apparatus for processing multicarrier signals
US5955916A (en) * 1994-11-23 1999-09-21 Lucent Technologies Inc. Modulator linear feed-forward amplifier
US5745846A (en) * 1995-08-07 1998-04-28 Lucent Technologies, Inc. Channelized apparatus for equalizing carrier powers of multicarrier signal
EP0762630A1 (de) * 1995-09-08 1997-03-12 AT&T IPM Corp. Leistungsverstärkerschaltung mit niedriger Verzerrung
US5623227A (en) * 1995-10-17 1997-04-22 Motorola, Inc. Amplifier circuit and method of controlling an amplifier for use in a radio frequency communication system
RU2142670C1 (ru) * 1995-11-16 1999-12-10 Самсунг Электроникс Ко., Лтд. Устройство линейного усиления мощности
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
US5867064A (en) * 1996-08-19 1999-02-02 Motorola, Inc. Method and apparatus for improving intermodulation in a feed-forward amplifier
US5929701A (en) * 1996-12-13 1999-07-27 At&T Corp. Feed forward amplifier system and method
DE69724146T2 (de) * 1996-12-30 2004-02-26 Samsung Electronics Co., Ltd., Suwon Kombinierte lineare leistungsverstärkungsvorrichtung und verfahren
KR100266817B1 (ko) * 1997-01-31 2000-09-15 윤종용 피드포워드방식의선형증폭장치및방법
US5994957A (en) * 1997-12-19 1999-11-30 Lucent Technologies Inc. Feed forward amplifier improvement
US5959500A (en) * 1998-01-26 1999-09-28 Glenayre Electronics, Inc. Model-based adaptive feedforward amplifier linearizer
US5977826A (en) * 1998-03-13 1999-11-02 Behan; Scott T. Cascaded error correction in a feed forward amplifier
US6363120B1 (en) 1998-06-17 2002-03-26 Lucent Technologies Inc. Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction
US6198419B1 (en) 1998-06-17 2001-03-06 Lucent Technologies, Inc. Method and apparatus for extending the spurious free dynamic range of a digital-to-analog converter
US6097324A (en) * 1998-06-17 2000-08-01 Lucent Technologies Inc. Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter
US6339701B1 (en) 1998-06-17 2002-01-15 Lucent Technologies, Inc. Method and apparatus for extending the dynamic range of a frequency mixer
US6091296A (en) * 1998-08-14 2000-07-18 Samsung Electronics Co., Ltd. Single loop feedforward amplifier for use in an RF transmitter and method of operation
US6166600A (en) * 1998-08-31 2000-12-26 Lucent Technologies Inc. Automatic gain and phase controlled feedforward amplifier without pilot signal
US6052023A (en) * 1998-08-31 2000-04-18 Lucent Technologies Inc. Calibration system for feed forward distortion reduction system
US6188732B1 (en) 1998-10-19 2001-02-13 Samsung Electronics Co., Ltd. Digital feedforward amplifier for use in an RF transmitter and method of operation
US6529305B1 (en) 1998-11-04 2003-03-04 Corvis Corporation Optical transmission apparatuses, methods, and systems
US6118566A (en) 1998-11-04 2000-09-12 Corvis Corporation Optical upconverter apparatuses, methods, and systems
US6292598B1 (en) 1998-11-04 2001-09-18 Corvis Corporation Optical transmission apparatuses, methods, and systems
US6127889A (en) * 1998-11-18 2000-10-03 Lucent Technologies Inc. Nested feed forward distortion reduction system
US6243038B1 (en) 1998-12-17 2001-06-05 Metawave Communications Corporation System and method providing amplification of narrow band signals with multi-channel amplifiers
US5986499A (en) * 1998-12-21 1999-11-16 Lucent Technologies Inc. Pilot signal detection system using band reject filter
US6326845B1 (en) * 1999-02-16 2001-12-04 Matsushita Electric Industrial Co., Ltd. Feedforward amplifier
EP1041712B1 (de) * 1999-03-31 2009-01-28 NTT Mobile Communications Network Inc. Vorwärtskopplungsverstärker
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
US6236286B1 (en) * 1999-06-08 2001-05-22 Lucent Technologies, Inc. Integrated on-board automated alignment for a low distortion amplifier
US6194942B1 (en) * 2000-01-19 2001-02-27 Cable Vision Electronics Co., Ltd. Predistortion circuit for linearization of signals
US20050101404A1 (en) * 2000-04-19 2005-05-12 Long D. C. Golf club head with localized grooves and reinforcement
US6424213B1 (en) 2000-04-22 2002-07-23 Netcom, Inc. Loss reduction using multiple amplifiers identically divided
US6504428B2 (en) * 2000-05-19 2003-01-07 Spectrian Corporation High linearity multicarrier RF amplifier
JP2001339251A (ja) * 2000-05-25 2001-12-07 Mitsubishi Electric Corp フィードフォワード増幅器
SE0004479D0 (sv) 2000-12-05 2000-12-05 Ericsson Telefon Ab L M Method and arrangement relating to electronic compensation
CN1215727C (zh) * 2001-11-06 2005-08-17 株式会社Ntt都科摩 具有双重环路的前馈放大器
US6700442B2 (en) * 2001-11-20 2004-03-02 Thomas Quang Ha N way phase cancellation power amplifier
US7142788B2 (en) * 2002-04-16 2006-11-28 Corvis Corporation Optical communications systems, devices, and methods
US7308234B2 (en) 2005-01-19 2007-12-11 Northrop Grumman Corporation Feedforward spur cancellation approach using low IP amplifier
US8159390B2 (en) * 2007-03-29 2012-04-17 Raytheon Company Temporal CW nuller
US8965454B2 (en) * 2009-03-04 2015-02-24 Andrew Llc Amplifier system for cell sites and other suitable applications
CN103219950B (zh) * 2013-03-14 2016-04-27 武汉正维电子技术有限公司 具有三路合路二次对消功能的高效率功率放大电路

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US3471798A (en) * 1967-12-26 1969-10-07 Bell Telephone Labor Inc Feed-forward amplifier
US3815040A (en) * 1973-03-02 1974-06-04 Bell Telephone Labor Inc Feed-forward, error-correcting systems
US3873936A (en) * 1974-03-07 1975-03-25 Bell Telephone Labor Inc Apparatus for reducing distortion in a repeatered transmission system
US4146844A (en) * 1977-10-31 1979-03-27 Tektronix, Inc. Feed-forward amplifier
CH644362A5 (de) * 1980-05-06 1984-07-31 Ciba Geigy Ag 3,5-disubstituierte phthalsaeureimide.
US4532478A (en) * 1984-05-30 1985-07-30 Rockwell International Corporation Phase adjusted feedforward system utilizing a single amplitude/phase equalizer
US4583049A (en) * 1984-06-15 1986-04-15 Trw Inc. Feed-forward circuit
US4812779A (en) * 1985-05-31 1989-03-14 Texscan Corporation Low-power feedforward amplifier
GB2190557B (en) * 1986-05-16 1989-12-13 Marconi Co Ltd Amplifying circuit arrangement
US4926134A (en) * 1988-12-29 1990-05-15 Westinghouse Electric Corp. Gain monitoring of distortion cancellation amplifiers in a feedforward linear amplifier
US4916407A (en) * 1988-12-29 1990-04-10 Westinghouse Electric Corp. Gain variation compensating circuit for a feedforward linear amplifier
US4943783A (en) * 1989-07-31 1990-07-24 Nippon Telegraph And Telephone Corporation Feed forward distortion correction circuit
GB2238196A (en) * 1989-11-16 1991-05-22 Motorola Inc Feed forward amplifier with pre-distortion
US5023565A (en) * 1990-01-26 1991-06-11 At&T Bell Laboratories Linear amplifier with automatic adjustment of feed forward loop gain and phase
US5001443A (en) * 1990-02-02 1991-03-19 At&T Bell Laboratories Coaxial-waveguide assemblages
CA2046413C (en) * 1990-07-11 1994-01-04 Shoichi Narahashi Feed-forward amplifier
US5117197A (en) * 1990-11-09 1992-05-26 Hughes Aircraft Company High-power feed-forward microwave amplifier apparatus with out-of-band intermodulation product suppression
US5077532A (en) * 1990-12-17 1991-12-31 Motorola, Inc. Feed forward distortion minimization circuit

Also Published As

Publication number Publication date
DE69422543T2 (de) 2000-07-27
EP0621684A1 (de) 1994-10-26
EP0621684B1 (de) 2000-01-12
FI110396B (fi) 2003-01-15
FI941791A (fi) 1994-10-20
US5304945A (en) 1994-04-19
JPH0722856A (ja) 1995-01-24
KR100315569B1 (ko) 2002-02-28
KR940025154A (ko) 1994-11-19
FI941791A0 (fi) 1994-04-18
CN1098572A (zh) 1995-02-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition