GB2421862B - High linearity doherty communication amplifier with bias control - Google Patents

High linearity doherty communication amplifier with bias control

Info

Publication number
GB2421862B
GB2421862B GB0605973A GB0605973A GB2421862B GB 2421862 B GB2421862 B GB 2421862B GB 0605973 A GB0605973 A GB 0605973A GB 0605973 A GB0605973 A GB 0605973A GB 2421862 B GB2421862 B GB 2421862B
Authority
GB
United Kingdom
Prior art keywords
bias control
high linearity
communication amplifier
linearity doherty
doherty communication
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 - Fee Related
Application number
GB0605973A
Other versions
GB0605973D0 (en
GB2421862A (en
Inventor
Youngwoo Kwon
Junghyun Kim
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.)
Avago Technologies International Sales Pte Ltd
Agilent Technologies Inc
Wavics Inc
Original Assignee
Avago Technologies General IP Singapore Pte Ltd
Agilent Technologies Inc
Wavics Inc
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
Priority claimed from US10/690,923 external-priority patent/US7053706B2/en
Application filed by Avago Technologies General IP Singapore Pte Ltd, Agilent Technologies Inc, Wavics Inc filed Critical Avago Technologies General IP Singapore Pte Ltd
Publication of GB0605973D0 publication Critical patent/GB0605973D0/en
Publication of GB2421862A publication Critical patent/GB2421862A/en
Application granted granted Critical
Publication of GB2421862B publication Critical patent/GB2421862B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
GB0605973A 2003-10-21 2004-10-19 High linearity doherty communication amplifier with bias control Expired - Fee Related GB2421862B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/690,923 US7053706B2 (en) 2002-02-01 2003-10-21 High linearity doherty communication amplifier with bias control
PCT/US2004/034797 WO2005043747A2 (en) 2003-10-21 2004-10-19 High linearity doherty communication amplifier with bias control

Publications (3)

Publication Number Publication Date
GB0605973D0 GB0605973D0 (en) 2006-05-03
GB2421862A GB2421862A (en) 2006-07-05
GB2421862B true GB2421862B (en) 2007-11-07

Family

ID=34549861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0605973A Expired - Fee Related GB2421862B (en) 2003-10-21 2004-10-19 High linearity doherty communication amplifier with bias control

Country Status (5)

Country Link
JP (1) JP4860476B2 (en)
CN (1) CN101164229B (en)
DE (1) DE112004001976T5 (en)
GB (1) GB2421862B (en)
WO (1) WO2005043747A2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4927351B2 (en) * 2005-05-27 2012-05-09 ルネサスエレクトロニクス株式会社 Doherty amplifier
JP2008035487A (en) * 2006-06-19 2008-02-14 Renesas Technology Corp Rf power amplifier
JP5049562B2 (en) * 2006-11-17 2012-10-17 株式会社日立国際電気 Power amplifier
JP5217182B2 (en) * 2007-02-22 2013-06-19 富士通株式会社 High frequency amplifier circuit
JP2008258986A (en) * 2007-04-05 2008-10-23 Japan Radio Co Ltd High frequency amplifier circuit
JP5705122B2 (en) * 2009-10-23 2015-04-22 日本碍子株式会社 Doherty amplifier synthesizer
CN102064774B (en) * 2009-11-18 2013-11-06 中兴通讯股份有限公司 Implementation method of power amplifying circuit and power amplifying device
US20120013401A1 (en) * 2010-07-14 2012-01-19 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Power amplifier with selectable load impedance and method of amplifying a signal with selectable load impedance
CN102158177A (en) * 2011-04-29 2011-08-17 中兴通讯股份有限公司 Doherty power amplifier and power amplifying method
US8829998B2 (en) * 2012-10-23 2014-09-09 Airspan Networks Inc. Doherty power amplifier
US8981852B2 (en) * 2012-11-12 2015-03-17 Avago Technologies General Ip (Singapore) Pte. Ltd. Providing an integrated directional coupler in a power amplifier
CN102983824A (en) * 2012-12-25 2013-03-20 福建邮科通信技术有限公司 Self-adaptive predistortion power amplifier
US9030260B2 (en) * 2013-07-19 2015-05-12 Alcatel Lucent Dual-band high efficiency Doherty amplifiers with hybrid packaged power devices
DE102013220160A1 (en) * 2013-10-05 2015-04-09 Rwth Aachen Sequential broadband Doherty power amplifier with adjustable output line back-off
EP2933918B1 (en) * 2014-04-15 2017-11-22 Ampleon Netherlands B.V. Ultra wideband doherty amplifier
CN103945149A (en) * 2014-04-28 2014-07-23 上海东洲罗顿通信股份有限公司 Multiple-complex system of high efficiency digital television transmitter and implementing method thereof
WO2016131028A1 (en) * 2015-02-15 2016-08-18 Skyworks Solutions, Inc. Doherty power amplifier having reduced size
CN106982041B (en) * 2017-02-23 2023-07-25 南京邮电大学 Novel topological structure of 180-degree annular bridge designed by lumped parameters and method for outputting arbitrary power ratio by using novel topological structure
CN116388699B (en) * 2021-12-24 2024-04-30 苏州华太电子技术股份有限公司 Doherty power amplifier device and power amplification system
CN117595810A (en) * 2022-08-18 2024-02-23 恩智浦美国有限公司 Doherty amplifier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420541A (en) * 1993-06-04 1995-05-30 Raytheon Company Microwave doherty amplifier
US5757229A (en) * 1996-06-28 1998-05-26 Motorola, Inc. Bias circuit for a power amplifier
US5880633A (en) * 1997-05-08 1999-03-09 Motorola, Inc. High efficiency power amplifier
US6262629B1 (en) * 1999-07-06 2001-07-17 Motorola, Inc. High efficiency power amplifier having reduced output matching networks for use in portable devices
WO2003065599A1 (en) * 2002-02-01 2003-08-07 Wavics Co., Ltd. Power amplification apparatus of portable terminal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225827A (en) * 1979-02-21 1980-09-30 Harris Corporation Stabilization circuit for transistor RF power amplifiers
US5739723A (en) * 1995-12-04 1998-04-14 Motorola, Inc. Linear power amplifier using active bias for high efficiency and method thereof
JPH118560A (en) * 1997-04-25 1999-01-12 Matsushita Electric Ind Co Ltd Circuit and method for transmission output control
US6130579A (en) * 1999-03-29 2000-10-10 Rf Micro Devices, Inc. Feed-forward biasing for RF amplifiers
JP4467756B2 (en) * 2000-10-13 2010-05-26 三菱電機株式会社 Doherty amplifier
US20020186079A1 (en) * 2001-06-08 2002-12-12 Kobayashi Kevin W. Asymmetrically biased high linearity balanced amplifier
US6469581B1 (en) * 2001-06-08 2002-10-22 Trw Inc. HEMT-HBT doherty microwave amplifier
US6864742B2 (en) * 2001-06-08 2005-03-08 Northrop Grumman Corporation Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420541A (en) * 1993-06-04 1995-05-30 Raytheon Company Microwave doherty amplifier
US5757229A (en) * 1996-06-28 1998-05-26 Motorola, Inc. Bias circuit for a power amplifier
US5880633A (en) * 1997-05-08 1999-03-09 Motorola, Inc. High efficiency power amplifier
US6262629B1 (en) * 1999-07-06 2001-07-17 Motorola, Inc. High efficiency power amplifier having reduced output matching networks for use in portable devices
WO2003065599A1 (en) * 2002-02-01 2003-08-07 Wavics Co., Ltd. Power amplification apparatus of portable terminal

Also Published As

Publication number Publication date
CN101164229A (en) 2008-04-16
CN101164229B (en) 2010-12-08
JP4860476B2 (en) 2012-01-25
GB0605973D0 (en) 2006-05-03
JP2007509584A (en) 2007-04-12
WO2005043747A2 (en) 2005-05-12
DE112004001976T5 (en) 2006-10-19
WO2005043747A3 (en) 2005-09-09
GB2421862A (en) 2006-07-05

Similar Documents

Publication Publication Date Title
GB2421862B (en) High linearity doherty communication amplifier with bias control
AU2003218031A1 (en) Cascode amplifier
IL169826A0 (en) High linearity low noise amplifier
AU2003282278A1 (en) Power amplifier with bias control
EP1714381B8 (en) Power amplifier with stabilising network
AU2002357027A1 (en) Wideband linear amplifier with predistortion error correction
AU2003278004A1 (en) Chireix architecture using low impedance amplifiers
AU2003276700A1 (en) Switchable gain amplifier
AU2003223177A1 (en) Power amplifier array with same type predistortion amplifier
AU2003201121A1 (en) Rf amplifier
GB0410876D0 (en) Digital pre-distortion for the linearizazion of power amplifiers with asymetrical characteristics
AU2003269350A1 (en) Predistortion linearizing
AU2003217374A1 (en) Single-ended current sense amplifier
AU2003220105A1 (en) Cross-differential amplifier
AU2003281983A1 (en) Amplifier assembly
AU2003246494A1 (en) Multi-standard amplifier
AU2003268076A1 (en) Highly linear variable gain amplifier
AU2003263320A1 (en) Class-f doherty amplifier
AU2002361366A1 (en) Compensated, digital class d amplifier
AU2003255887A8 (en) Variable gain amplifier with improved control characteristics linearity
AU2003264757A1 (en) Transconductance amplifiers
AU2003227983A1 (en) Signal correction by predistortion
DE60204193D1 (en) Amplifier with predistortion
AU2003232826A1 (en) Power amplifier with pre-distorter
AU2003239985A1 (en) High voltage-wide band amplifier

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121019