DE60124720D1 - Zusammengesetzter verstärker - Google Patents

Zusammengesetzter verstärker

Info

Publication number
DE60124720D1
DE60124720D1 DE60124720T DE60124720T DE60124720D1 DE 60124720 D1 DE60124720 D1 DE 60124720D1 DE 60124720 T DE60124720 T DE 60124720T DE 60124720 T DE60124720 T DE 60124720T DE 60124720 D1 DE60124720 D1 DE 60124720D1
Authority
DE
Germany
Prior art keywords
amplifier
power amplifier
auxiliary power
composite
composite amplifier
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
DE60124720T
Other languages
English (en)
Inventor
Richard Hellberg
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of DE60124720D1 publication Critical patent/DE60124720D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
DE60124720T 2000-06-06 2001-05-30 Zusammengesetzter verstärker Expired - Lifetime DE60124720D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0002148A SE0002148L (sv) 2000-06-06 2000-06-06 Sammansatt förstärkare
PCT/SE2001/001201 WO2001095480A1 (en) 2000-06-06 2001-05-30 Composite amplifier

Publications (1)

Publication Number Publication Date
DE60124720D1 true DE60124720D1 (de) 2007-01-04

Family

ID=20280021

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60124720T Expired - Lifetime DE60124720D1 (de) 2000-06-06 2001-05-30 Zusammengesetzter verstärker

Country Status (10)

Country Link
US (1) US6639464B2 (de)
EP (1) EP1301989B1 (de)
JP (1) JP4693334B2 (de)
AT (1) ATE346421T1 (de)
AU (2) AU6645001A (de)
CA (1) CA2411450C (de)
DE (1) DE60124720D1 (de)
SE (1) SE0002148L (de)
TW (1) TW557626B (de)
WO (1) WO2001095480A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE516847C2 (sv) * 2000-07-07 2002-03-12 Ericsson Telefon Ab L M Sammansatt förstärkare samt sändare som innefattar en sådan förstärkare
SE516852C2 (sv) * 2000-07-07 2002-03-12 Ericsson Telefon Ab L M Sammansatt förstärkare, sändare med sådan förstärkare samt förfarande för att driva en dylik förstärkare resp. sändare
KR100450744B1 (ko) * 2002-08-29 2004-10-01 학교법인 포항공과대학교 도허티 증폭기
JP2004222151A (ja) * 2003-01-17 2004-08-05 Nec Corp ドハーティ増幅器
JP4033794B2 (ja) 2003-03-24 2008-01-16 株式会社エヌ・ティ・ティ・ドコモ 高効率線形電力増幅器
SE0302586D0 (sv) * 2003-09-26 2003-09-26 Ericsson Telefon Ab L M Composite power amplifier
KR100735418B1 (ko) 2003-10-22 2007-07-04 삼성전자주식회사 도허티 앰프
US7135931B2 (en) * 2004-07-29 2006-11-14 Agere Systems Inc. Negative conductance power amplifier
US7148746B2 (en) * 2004-10-26 2006-12-12 Andrew Corporation High efficiency amplifier
KR20060077818A (ko) * 2004-12-31 2006-07-05 학교법인 포항공과대학교 비대칭 전력 구동을 이용한 전력 증폭 장치
JP4927351B2 (ja) * 2005-05-27 2012-05-09 ルネサスエレクトロニクス株式会社 ドハティ型増幅器
JP4792273B2 (ja) * 2005-10-18 2011-10-12 株式会社日立国際電気 増幅器
US7831221B2 (en) * 2005-12-13 2010-11-09 Andrew Llc Predistortion system and amplifier for addressing group delay modulation
CN101351961B (zh) 2005-12-30 2012-08-08 艾利森电话股份有限公司 高效复合放大器
JP4753255B2 (ja) * 2006-09-01 2011-08-24 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 電力増幅装置および携帯電話端末
US7541866B2 (en) * 2006-09-29 2009-06-02 Nortel Networks Limited Enhanced doherty amplifier with asymmetrical semiconductors
CN101836357A (zh) * 2007-11-21 2010-09-15 富士通株式会社 功率放大器
US8180304B2 (en) * 2008-04-02 2012-05-15 Quantenna Communications, Inc. Efficient power amplifier
JP5237462B2 (ja) 2008-12-09 2013-07-17 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 多段増幅器
US9523730B2 (en) 2009-04-08 2016-12-20 Analog Devices, Inc. Architecture and method to determine leakage impedance and leakage voltage node
US8427167B2 (en) 2009-04-08 2013-04-23 Analog Devices, Inc. Architecture and method to determine leakage impedance and leakage voltage node
DE102011079613A1 (de) * 2011-06-30 2013-01-03 Rohde & Schwarz Gmbh & Co. Kg Doherty-Verstärker mit Wirkungsgradoptimierung
US8593218B2 (en) * 2011-11-08 2013-11-26 Analog Devices, Inc. Fast settling low power low noise amplifier
US8917141B2 (en) 2011-12-20 2014-12-23 Telefonaktiebolaget L M Ericsson (Publ) Radio frequency power amplifier circuit and method
WO2013126427A1 (en) * 2012-02-22 2013-08-29 Analog Devices, Inc. Architecture and method to determine leakage impedance and leakage voltage node
CN102594266A (zh) * 2012-03-07 2012-07-18 武汉正维电子技术有限公司 一种多级多路Doherty放大器
JP2014082749A (ja) * 2012-09-28 2014-05-08 Fordan Kk 複合電力増幅器を有する複合送信機
US9831835B2 (en) * 2016-02-26 2017-11-28 Nxp Usa, Inc. Multiple path amplifier with pre-cancellation
US20220263475A1 (en) * 2019-07-30 2022-08-18 The Regents Of The University Of California Method for enhancing power amplifier efficiency and linearity and power amplifier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906448C1 (de) * 1989-03-01 1990-03-15 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
US5739723A (en) * 1995-12-04 1998-04-14 Motorola, Inc. Linear power amplifier using active bias for high efficiency and method thereof
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
US5886575A (en) * 1997-09-30 1999-03-23 Motorola, Inc. Apparatus and method for amplifying a signal
US6262629B1 (en) * 1999-07-06 2001-07-17 Motorola, Inc. High efficiency power amplifier having reduced output matching networks for use in portable devices
US6396341B1 (en) * 2000-12-29 2002-05-28 Ericsson Inc. Class E Doherty amplifier topology for high efficiency signal transmitters

Also Published As

Publication number Publication date
JP4693334B2 (ja) 2011-06-01
WO2001095480A1 (en) 2001-12-13
AU6645001A (en) 2001-12-17
CA2411450A1 (en) 2001-12-13
US20030076166A1 (en) 2003-04-24
TW557626B (en) 2003-10-11
SE516145C2 (sv) 2001-11-26
CA2411450C (en) 2009-10-13
US6639464B2 (en) 2003-10-28
SE0002148D0 (sv) 2000-06-06
SE0002148L (sv) 2001-11-26
EP1301989B1 (de) 2006-11-22
EP1301989A1 (de) 2003-04-16
ATE346421T1 (de) 2006-12-15
AU2001266450B2 (en) 2005-09-22
JP2003536312A (ja) 2003-12-02

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Legal Events

Date Code Title Description
8332 No legal effect for de