HK1009618A1 - Fet amplifier with gate voltage control - Google Patents
Fet amplifier with gate voltage controlInfo
- 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
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)
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 (ja) |
EP (1) | EP0488385B1 (ja) |
JP (1) | JP3033623B2 (ja) |
AU (1) | AU652004B2 (ja) |
CA (1) | CA2056701C (ja) |
DE (1) | DE69130855T2 (ja) |
HK (1) | HK1009618A1 (ja) |
Families Citing this family (29)
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 |
WO2002065652A1 (de) * | 2001-02-09 | 2002-08-22 | Siemens Aktiengesellschaft | 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 |
US7288992B2 (en) * | 2002-03-20 | 2007-10-30 | Roke Manor Research Limited | 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 |
US7365603B2 (en) | 2004-03-23 | 2008-04-29 | Murata Manufacturing Co., Ltd. | FET amplifier, pulse modulation module, and radar device |
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 |
US10924064B2 (en) * | 2017-02-22 | 2021-02-16 | Sumitomo Electric Industries, Ltd. | Bias circuit |
Family Cites Families (10)
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 (ja) * | 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 (ja) * | 1988-12-26 | 1990-07-12 | ||
JPH02206905A (ja) * | 1989-02-07 | 1990-08-16 | Fujitsu Ltd | 線形増幅器 |
JPH02206904A (ja) * | 1989-02-07 | 1990-08-16 | Fujitsu Ltd | 線形増幅器 |
-
1991
- 1991-11-28 JP JP03314366A patent/JP3033623B2/ja not_active Expired - Fee Related
- 1991-11-29 EP EP91120562A patent/EP0488385B1/en not_active Expired - Lifetime
- 1991-11-29 AU AU88294/91A patent/AU652004B2/en not_active Ceased
- 1991-11-29 DE DE69130855T patent/DE69130855T2/de not_active Expired - Fee Related
- 1991-11-29 CA CA002056701A patent/CA2056701C/en not_active Expired - Fee Related
- 1991-12-02 US US07/800,999 patent/US5278517A/en not_active Expired - Fee Related
-
1998
- 1998-08-25 HK HK98110162A patent/HK1009618A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2056701C (en) | 1996-07-09 |
CA2056701A1 (en) | 1992-05-31 |
AU8829491A (en) | 1992-06-04 |
AU652004B2 (en) | 1994-08-11 |
JP3033623B2 (ja) | 2000-04-17 |
EP0488385A1 (en) | 1992-06-03 |
US5278517A (en) | 1994-01-11 |
JPH0583041A (ja) | 1993-04-02 |
DE69130855D1 (de) | 1999-03-18 |
EP0488385B1 (en) | 1999-02-03 |
DE69130855T2 (de) | 1999-06-10 |
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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 |