HK1009618A1 - Fet amplifier with gate voltage control - Google Patents

Fet amplifier with gate voltage control

Info

Publication number
HK1009618A1
HK1009618A1 HK98110162A HK98110162A HK1009618A1 HK 1009618 A1 HK1009618 A1 HK 1009618A1 HK 98110162 A HK98110162 A HK 98110162A HK 98110162 A HK98110162 A HK 98110162A HK 1009618 A1 HK1009618 A1 HK 1009618A1
Authority
HK
Hong Kong
Prior art keywords
voltage control
gate voltage
fet amplifier
fet
amplifier
Prior art date
Application number
HK98110162A
Other languages
English (en)
Inventor
Noriyuki Fujita
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of HK1009618A1 publication Critical patent/HK1009618A1/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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
HK98110162A 1990-11-30 1998-08-25 Fet amplifier with gate voltage control HK1009618A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33072890 1990-11-30

Publications (1)

Publication Number Publication Date
HK1009618A1 true HK1009618A1 (en) 1999-06-04

Family

ID=18235894

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98110162A HK1009618A1 (en) 1990-11-30 1998-08-25 Fet amplifier with gate voltage control

Country Status (7)

Country Link
US (1) US5278517A (xx)
EP (1) EP0488385B1 (xx)
JP (1) JP3033623B2 (xx)
AU (1) AU652004B2 (xx)
CA (1) CA2056701C (xx)
DE (1) DE69130855T2 (xx)
HK (1) HK1009618A1 (xx)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06334445A (ja) * 1993-05-19 1994-12-02 Mitsubishi Electric Corp 半導体集積回路
US5455968A (en) * 1993-10-04 1995-10-03 Motorola, Inc. Variable power amplifier
JP3368069B2 (ja) * 1994-10-06 2003-01-20 株式会社日立国際電気 Ｆｐｕ装置のｓｈｆ電力切換方式
US5589796A (en) * 1994-11-01 1996-12-31 Motorola, Inc Method and apparatus for increasing amplifier efficiency
JPH0951238A (ja) * 1995-08-09 1997-02-18 Mitsubishi Electric Corp マイクロ波増幅器回路
JPH09135127A (ja) * 1995-11-07 1997-05-20 Nec Corp 電力増幅器
US5724005A (en) * 1996-04-25 1998-03-03 Lucent Technologies Inc. Linear power amplifier with automatic gate/base bias control for optimum efficiency
US5757236A (en) * 1996-07-01 1998-05-26 Motorola, Inc. Amplifier bias circuit and method
US6025753A (en) * 1997-07-11 2000-02-15 Motorola, Inc. Method and apparatus for amplifying a signal
GB2329087A (en) * 1997-09-08 1999-03-10 Motorola Inc Improving the efficiency of a transmitter amplifier by controlling an amplifier voltage using a voltage conditioner such as a switched mode converter
US6049704A (en) * 1997-12-10 2000-04-11 Motorola, Inc. Apparatus for amplifying an RF signal
JP2000022559A (ja) 1998-07-03 2000-01-21 Nec Corp 送信出力制御回路
US6418304B1 (en) 1998-09-16 2002-07-09 Lucent Technologies Inc. Method and apparatus for improving efficiency of high-power linear amplifier
US6166591A (en) * 1998-12-11 2000-12-26 E.C.I. Telecom Ltd. FET gate biasing control device for power amplifier
US6104246A (en) * 1999-05-25 2000-08-15 International Business Machines Corporation Variable gain RF amplifier with switchable bias injection and feedback
JP2001094349A (ja) * 1999-08-31 2001-04-06 Samsung Electronics Co Ltd 携帯電話端末用電力増幅器
JP4604299B2 (ja) * 2000-01-28 2011-01-05 ソニー株式会社 信号処理回路およびバイアス調整回路
EP1358715B1 (de) * 2001-02-09 2012-08-15 Hewlett-Packard Development Company, L.P. Verfahren zum energiesparenden betrieb eines mobilfunkgerätes und mobilfunkgerät
JP3664990B2 (ja) 2001-04-25 2005-06-29 株式会社東芝 高周波回路及び通信システム
US6573796B2 (en) * 2001-09-24 2003-06-03 Infineon Technologies Ag Automatic LDMOS biasing with long term hot carrier compensation
AU2003216835A1 (en) 2002-03-20 2003-10-08 Roke Manor Research Limited A bias circuit for a bipolar transistor
JP4744786B2 (ja) * 2003-04-23 2011-08-10 ルネサスエレクトロニクス株式会社 高周波電力増幅モジュール
US6917244B2 (en) * 2003-06-10 2005-07-12 Nokia Corporation Power control for a switching mode power amplifier
WO2005091496A1 (ja) * 2004-03-23 2005-09-29 Murata Manufacturing Co., Ltd. Fet増幅器、パルス変調モジュール、およびレーダ装置
KR20070048422A (ko) * 2005-11-04 2007-05-09 삼성전자주식회사 고주파 증폭기의 바이어스 최적화 장치 및 방법
KR100871858B1 (ko) * 2005-11-16 2008-12-03 삼성전자주식회사 시분할복신 무선통신시스템의 전력증폭기 장치
KR20070091963A (ko) * 2006-03-08 2007-09-12 인티그런트 테크놀로지즈(주) 적응적 선형 증폭기
JP2010252155A (ja) * 2009-04-17 2010-11-04 Dx Antenna Co Ltd 高周波機器及びそれを備えた共同受信システム
WO2018154659A1 (ja) * 2017-02-22 2018-08-30 住友電気工業株式会社 バイアス回路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152734A (en) * 1981-03-18 1982-09-21 Fujitsu Ltd Control system for output power of radio transmitter
US4462004A (en) * 1982-03-18 1984-07-24 At&T Bell Laboratories Dynamic class-4 FET amplifier
FR2557399B1 (fr) * 1983-12-23 1990-05-04 Thomson Csf Amplificateur de puissance lineaire
JPS62143320U (xx) * 1986-03-03 1987-09-10
US4748423A (en) * 1987-01-28 1988-05-31 Rockwell International Corporation Hot standby amplifier apparatus
FR2620283B1 (fr) * 1987-09-08 1989-12-01 Thomson Csf Dispositif de commande de la puissance de sortie d'un amplificateur fonctionnant en classe c
JPH01314431A (ja) * 1988-06-15 1989-12-19 Mitsubishi Electric Corp 送信電力制御回路
JPH0288317U (xx) * 1988-12-26 1990-07-12
JPH02206904A (ja) * 1989-02-07 1990-08-16 Fujitsu Ltd 線形増幅器
JPH02206905A (ja) * 1989-02-07 1990-08-16 Fujitsu Ltd 線形増幅器

Also Published As

Publication number Publication date
JPH0583041A (ja) 1993-04-02
AU8829491A (en) 1992-06-04
JP3033623B2 (ja) 2000-04-17
DE69130855D1 (de) 1999-03-18
CA2056701A1 (en) 1992-05-31
CA2056701C (en) 1996-07-09
AU652004B2 (en) 1994-08-11
DE69130855T2 (de) 1999-06-10
EP0488385B1 (en) 1999-02-03
US5278517A (en) 1994-01-11
EP0488385A1 (en) 1992-06-03

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20051129