IN192286B - - Google Patents

Info

Publication number
IN192286B
IN192286B IN841CA1997A IN192286B IN 192286 B IN192286 B IN 192286B IN 841CA1997 A IN841CA1997 A IN 841CA1997A IN 192286 B IN192286 B IN 192286B
Authority
IN
India
Application number
Other languages
English (en)
Inventor
Young Kim
Jong-Tae Park
Hang-Kee Kim
Young-Kon Lee
Seung-Won Chung
Seong-Hoon Lee
Soon-Chul Jeong
Chul-Dong Kim
Ik-Soo Chung
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of IN192286B publication Critical patent/IN192286B/en

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using 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
    • 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
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
IN841CA1997 1996-11-04 1997-09-05 IN192286B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960051910A KR100217416B1 (ko) 1995-11-16 1996-11-04 선형 증폭 장치 및 방법

Publications (1)

Publication Number Publication Date
IN192286B true IN192286B (fr) 2004-03-27

Family

ID=19480758

Family Applications (1)

Application Number Title Priority Date Filing Date
IN841CA1997 IN192286B (fr) 1996-11-04 1997-09-05

Country Status (11)

Country Link
JP (1) JP3260295B2 (fr)
KR (1) KR100217416B1 (fr)
AU (1) AU698665B2 (fr)
BR (1) BR9703140B1 (fr)
DE (1) DE19720019B4 (fr)
FI (1) FI116339B (fr)
FR (1) FR2755551B1 (fr)
GB (1) GB2318938B (fr)
IN (1) IN192286B (fr)
NL (1) NL1006031C2 (fr)
SE (1) SE519812C2 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075411A (en) * 1997-12-22 2000-06-13 Telefonaktiebolaget Lm Ericsson Method and apparatus for wideband predistortion linearization
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
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
US6339701B1 (en) 1998-06-17 2002-01-15 Lucent Technologies, Inc. Method and apparatus for extending the dynamic range of a frequency mixer
WO2000048308A1 (fr) 1999-02-12 2000-08-17 Wireless Systems International Limited Appareil de traitement de signal
JP2001053552A (ja) * 1999-08-10 2001-02-23 Nec Corp フィードフォワード増幅回路、及びフィードフォワード増幅回路における非線形歪の補償方法。
US6392480B1 (en) * 1999-08-19 2002-05-21 Lucent Technologies Inc. Alternating gain and phase control system and method
GB2353646A (en) * 1999-08-27 2001-02-28 Matsushita Electric Ind Co Ltd A multistage amplifier with multistage predistortion and a predistorter
GB2354126B (en) * 1999-09-13 2004-07-21 Wireless Systems Int Ltd Signal processing
GB2358748A (en) * 2000-01-31 2001-08-01 Wireless Systems Int Ltd An arrangement in a predistortion or feedforward linearizer for an amplifier in which I and Q components are adjusted to achieve a desired phase and amplitude
US6275106B1 (en) * 2000-02-25 2001-08-14 Spectrian Corporation Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier
WO2001099316A1 (fr) 2000-06-16 2001-12-27 Fujitsu Limited Amplificateur multiporteuse
US6496064B2 (en) * 2000-08-15 2002-12-17 Eugene Rzyski Intermodulation product cancellation circuit
US6545487B1 (en) * 2000-08-24 2003-04-08 Lucent Technologies Inc. System and method for producing an amplified signal with reduced distortion
US6674324B1 (en) * 2000-08-24 2004-01-06 Lucent Technologies Inc. System and method for producing an amplified signal using plurality of amplitudes across spectrum
JP3850649B2 (ja) 2000-09-22 2006-11-29 株式会社日立国際電気 歪補償増幅器
DE60135249D1 (de) * 2000-12-04 2008-09-18 Matsushita Electric Ind Co Ltd Vorwärtskopplungsverstärker, kommunikationsvorrichtung, vorwärtskopplungsverstärkungsverfahren, programm und medium
US7046972B2 (en) 2001-04-10 2006-05-16 Matsushita Electric Industrial Co., Ltd. Predistortion linearizer and predistortion distortion compensation method, program, and medium
KR100395502B1 (ko) * 2001-08-08 2003-08-25 한국전자통신연구원 적응형 피드포워드 선형 증폭 장치
JP3502087B2 (ja) 2002-05-14 2004-03-02 松下電器産業株式会社 ハイブリッド歪補償方法およびハイブリッド歪補償装置
GB2395077A (en) * 2002-11-01 2004-05-12 N & L Ltd An amplifier arrangement linearised by predistortion and feedforward; adaptive bias for improved efficiency; thermal overload protection
KR100766201B1 (ko) 2005-11-09 2007-10-10 학교법인 포항공과대학교 알에프 전력 증폭기의 위상 변화 측정 장치 및 그 방법
EP3146630B1 (fr) * 2014-05-23 2020-01-15 Teko Telecom S.r.l. Système d'amplification de puissance pour communications radiofréquence
CN106464617B (zh) * 2014-06-26 2020-01-31 华为技术有限公司 一种干扰消除的装置和方法
CN106464616B (zh) 2014-06-26 2019-10-22 华为技术有限公司 一种干扰消除的装置和方法
KR102163050B1 (ko) 2015-03-12 2020-10-08 삼성전기주식회사 전력 증폭기 및 전력 증폭기의 위상 보정 방법
US11038474B2 (en) 2017-11-01 2021-06-15 Analog Devices Global Unlimited Company Phased array amplifier linearization
US11974178B2 (en) 2018-09-04 2024-04-30 Beijing Xiaomi Mobile Software Co., Ltd. Cell handover method, device and readable storage medium
KR102080202B1 (ko) 2019-08-23 2020-02-21 주식회사 패러다임 선형 전력 증폭 장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1495264A (en) * 1975-02-19 1977-12-14 Plessey Co Ltd Amplifier arrangements
US4879519A (en) * 1988-10-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Labs Predistortion compensated linear amplifier
US4885551A (en) * 1988-10-31 1989-12-05 American Telephone And Telegraph Company At&T Bell Laboratories Feed forward 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
US4987378A (en) * 1989-11-28 1991-01-22 General Electric Company Feedforward predistortion linearizer
US5023565A (en) * 1990-01-26 1991-06-11 At&T Bell Laboratories Linear amplifier with automatic adjustment of feed forward loop gain and phase
GB9009295D0 (en) * 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
US5130663A (en) * 1991-04-15 1992-07-14 Motorola, Inc. Feed forward amplifier network with frequency swept pilot tone
US5570063A (en) * 1995-05-18 1996-10-29 Spectrian, Inc. RF power amplifier with signal predistortion for improved linearity

Also Published As

Publication number Publication date
GB2318938A (en) 1998-05-06
FI972005A0 (fi) 1997-05-12
DE19720019B4 (de) 2006-04-06
JPH10190361A (ja) 1998-07-21
FR2755551B1 (fr) 2001-09-07
BR9703140A (pt) 1998-11-10
FR2755551A1 (fr) 1998-05-07
KR100217416B1 (ko) 1999-09-01
NL1006031A1 (nl) 1998-05-08
GB2318938B (en) 1999-07-28
SE9701760L (sv) 1998-05-05
GB9709622D0 (en) 1997-07-02
NL1006031C2 (nl) 1999-06-17
SE519812C2 (sv) 2003-04-15
AU698665B2 (en) 1998-11-05
BR9703140B1 (pt) 2011-04-05
FI972005A (fi) 1998-05-05
JP3260295B2 (ja) 2002-02-25
DE19720019A1 (de) 1998-05-14
KR970031238A (ko) 1997-06-26
AU2014897A (en) 1998-05-07
SE9701760D0 (sv) 1997-05-13
FI116339B (fi) 2005-10-31

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