DE68927514D1 - Vorspannungsschaltung für RF-Verstärker - Google Patents

Vorspannungsschaltung für RF-Verstärker

Info

Publication number
DE68927514D1
DE68927514D1 DE68927514T DE68927514T DE68927514D1 DE 68927514 D1 DE68927514 D1 DE 68927514D1 DE 68927514 T DE68927514 T DE 68927514T DE 68927514 T DE68927514 T DE 68927514T DE 68927514 D1 DE68927514 D1 DE 68927514D1
Authority
DE
Germany
Prior art keywords
amplifiers
bias circuit
bias
circuit
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
DE68927514T
Other languages
English (en)
Inventor
Ian Reading
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE68927514D1 publication Critical patent/DE68927514D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
DE68927514T 1988-12-08 1989-10-26 Vorspannungsschaltung für RF-Verstärker Expired - Lifetime DE68927514D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888828635A GB8828635D0 (en) 1988-12-08 1988-12-08 Rf amplifier bias circuit

Publications (1)

Publication Number Publication Date
DE68927514D1 true DE68927514D1 (de) 1997-01-16

Family

ID=10648155

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68927514T Expired - Lifetime DE68927514D1 (de) 1988-12-08 1989-10-26 Vorspannungsschaltung für RF-Verstärker

Country Status (5)

Country Link
US (1) US5136257A (de)
EP (1) EP0372705B1 (de)
JP (1) JPH02214320A (de)
DE (1) DE68927514D1 (de)
GB (1) GB8828635D0 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5126688A (en) * 1990-03-20 1992-06-30 Oki Electric Co., Ltd. Power amplifying apparatus for wireless transmitter
FR2666704A1 (fr) * 1990-09-11 1992-03-13 Philips Electronique Lab Dispositif semiconducteur integre hyperfrequences incluant un circuit amplificateur a commande automatique de gain.
US5451907A (en) * 1994-05-16 1995-09-19 Eni, Div. Of Astec America, Inc. Active bias for a pulsed power amplifier
US5589796A (en) * 1994-11-01 1996-12-31 Motorola, Inc Method and apparatus for increasing amplifier efficiency
US5548248A (en) * 1995-07-30 1996-08-20 Wang; Nan L. L. RF amplifier circuit
US6122491A (en) * 1996-12-27 2000-09-19 Lucent Technologies Inc. Communications system using power amplifier with dynamic biasing
JPH11214937A (ja) * 1998-01-28 1999-08-06 Sharp Corp 半導体回路
KR100357619B1 (ko) * 1998-06-23 2003-01-15 삼성전자 주식회사 이동 통신단말기의 출력전력 제어장치 및 방법
US6259901B1 (en) * 1998-07-03 2001-07-10 Mobile Communications Tokyo Inc. Radio-frequency power amplifier of mobile communication equipment
US6559722B1 (en) 1999-08-10 2003-05-06 Anadigics, Inc. Low bias current/temperature compensation current mirror for linear power amplifier
US6735424B1 (en) * 2000-06-14 2004-05-11 The Regents Of The University Of California S-band low-noise amplifier with self-adjusting bias for improved power consumption and dynamic range in a mobile environment
FI114666B (fi) 2000-10-31 2004-11-30 Elektrobit Oy Linearisointimenetelmä ja vahvistinjärjestely
US6404284B1 (en) 2001-04-19 2002-06-11 Anadigics, Inc. Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance
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
US6683496B2 (en) * 2001-08-20 2004-01-27 Harris Corporation System and method for minimizing dissipation in RF power amplifiers
US6580321B1 (en) 2001-08-24 2003-06-17 Anadigics, Inc. Active clamping circuit for power amplifiers
US6762647B1 (en) * 2002-08-09 2004-07-13 Triquint Semiconductor, Inc. Active protection circuit for load mismatched power amplifier
KR100673483B1 (ko) * 2004-11-25 2007-01-24 한국전자통신연구원 멀티플라잉 디지털-아날로그 변환기 및 이를 이용하는다중 경로 파이프 라인 아날로그-디지털 변환기

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581222A (en) * 1969-03-19 1971-05-25 Wilton Co Linear voltage controlled attenuator
FR2210335A5 (de) * 1972-12-11 1974-07-05 Electronique Appliquee
US4412182A (en) * 1981-03-09 1983-10-25 Harris Corporation Apparatus for controlling an operational characteristic of a controlled device in accordance with the position of a movable member
FR2512292B1 (fr) * 1981-08-25 1986-11-21 Lmt Radio Professionelle Amplificateur hyperfrequence a transistors a effet de champ, notamment pour radar doppler
FR2520952A1 (fr) * 1982-02-03 1983-08-05 Trt Telecom Radio Electr Dispositif de controle automatique de gain (cag) a action rapide
US4442407A (en) * 1982-06-11 1984-04-10 The United States Of America As Represented By The Secretary Of The Army Two loop automatic level control for power amplifier
NL8202571A (nl) * 1982-06-24 1984-01-16 Philips Nv Signaalverwerkingsstelsel uitgevoerd met een signaalbron, met een signaalverwerkingseenheid en met tussen bron en eenheid aansluitbare verbindingskabels met onderscheidene lengten.
JPS5981113U (ja) * 1982-11-25 1984-06-01 日本電気株式会社 出力電力制御回路
US4458213A (en) * 1982-12-13 1984-07-03 Sony Corporation Constant quiescent current, class AB amplifier output stage
US4523155A (en) * 1983-05-04 1985-06-11 Motorola, Inc. Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
US4606075A (en) * 1983-09-21 1986-08-12 Motorola, Inc. Automatic gain control responsive to coherent and incoherent signals
JPS60244107A (ja) * 1984-05-18 1985-12-04 Nec Corp 高周波電力制御回路
US4602218A (en) * 1985-04-30 1986-07-22 Motorola, Inc. Automatic output control circuitry for RF power amplifiers with wide dynamic range
US4636741A (en) * 1985-11-01 1987-01-13 Motorola, Inc. Multi-level power amplifying circuitry for portable radio transceivers
DK163699C (da) * 1986-02-11 1992-08-17 Poul Richter Joergensen Fremgangsmaade til automatisk forstaerkningsstyring af et signal samt et kredsloeb til udoevelse af fremgangsmaaden

Also Published As

Publication number Publication date
US5136257A (en) 1992-08-04
EP0372705B1 (de) 1996-12-04
EP0372705A3 (de) 1991-07-10
JPH02214320A (ja) 1990-08-27
GB8828635D0 (en) 1989-01-11
EP0372705A2 (de) 1990-06-13

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Legal Events

Date Code Title Description
8332 No legal effect for de