CA2204409A1 - Amplifier circuit and method of tuning the amplifier circuit - Google Patents

Amplifier circuit and method of tuning the amplifier circuit

Info

Publication number
CA2204409A1
CA2204409A1 CA002204409A CA2204409A CA2204409A1 CA 2204409 A1 CA2204409 A1 CA 2204409A1 CA 002204409 A CA002204409 A CA 002204409A CA 2204409 A CA2204409 A CA 2204409A CA 2204409 A1 CA2204409 A1 CA 2204409A1
Authority
CA
Canada
Prior art keywords
amplifier
carrier
doherty
peaking
output signal
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.)
Abandoned
Application number
CA002204409A
Other languages
English (en)
French (fr)
Inventor
James Frank Long
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.)
Motorola Solutions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2204409A1 publication Critical patent/CA2204409A1/en
Abandoned 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
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • H03F3/604—Combinations of several amplifiers using FET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • 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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)
CA002204409A 1995-11-30 1996-09-04 Amplifier circuit and method of tuning the amplifier circuit Abandoned CA2204409A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56484595A 1995-11-30 1995-11-30
US08/564,845 1995-11-30

Publications (1)

Publication Number Publication Date
CA2204409A1 true CA2204409A1 (en) 1997-05-31

Family

ID=24256136

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002204409A Abandoned CA2204409A1 (en) 1995-11-30 1996-09-04 Amplifier circuit and method of tuning the amplifier circuit

Country Status (10)

Country Link
JP (1) JPH10513631A (https=)
KR (1) KR19980701804A (https=)
AU (1) AU7154696A (https=)
CA (1) CA2204409A1 (https=)
DE (1) DE19681072T1 (https=)
FI (1) FI972345A0 (https=)
GB (1) GB2313009A (https=)
SE (1) SE9701538L (https=)
TW (1) TW322657B (https=)
WO (1) WO1997020385A1 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786727A (en) * 1996-10-15 1998-07-28 Motorola, Inc. Multi-stage high efficiency linear power amplifier and method therefor
US6028485A (en) * 1998-08-03 2000-02-22 Motorola, Inc. Power amplification apparatus and method therefor
US6320464B1 (en) * 1999-03-13 2001-11-20 Ntt Mobile Communications Network, Inc. Feedforward amplifier
US6320462B1 (en) * 2000-04-12 2001-11-20 Raytheon Company Amplifier circuit
SE520760C2 (sv) * 2000-06-06 2003-08-19 Ericsson Telefon Ab L M Doherty-förstärkare av flerstegstyp
SE516847C2 (sv) 2000-07-07 2002-03-12 Ericsson Telefon Ab L M Sammansatt förstärkare samt sändare som innefattar en sådan förstärkare
US6760230B2 (en) * 2001-02-28 2004-07-06 Andrew Corporation Compact, high efficiency, high isolation power amplifier
US20020186079A1 (en) * 2001-06-08 2002-12-12 Kobayashi Kevin W. Asymmetrically biased high linearity balanced amplifier
US6917246B2 (en) * 2001-09-10 2005-07-12 Skyworks Solutions, Inc. Doherty bias circuit to dynamically compensate for process and environmental variations
JP2004221646A (ja) 2003-01-09 2004-08-05 Nec Corp ドハ−ティ増幅器
JP2004222151A (ja) 2003-01-17 2004-08-05 Nec Corp ドハーティ増幅器
US7038539B2 (en) * 2003-05-06 2006-05-02 Powerwave Technologies, Inc. RF amplifier employing active load linearization
US7710202B2 (en) 2003-09-17 2010-05-04 Nec Corporation Amplifier
EP1667320B1 (en) * 2003-09-17 2015-04-29 NEC Corporation Amplifier
JP4520204B2 (ja) 2004-04-14 2010-08-04 三菱電機株式会社 高周波電力増幅器
KR100654650B1 (ko) * 2004-11-25 2006-12-08 아바고테크놀로지스코리아 주식회사 하이브리드 커플러가 없는 직렬구조의 도허티 증폭기
US7180372B2 (en) * 2004-12-07 2007-02-20 Stmicroelectronics, Inc. High frequency amplifier
JP4700470B2 (ja) * 2004-12-15 2011-06-15 株式会社日立国際電気 増幅器
US7193473B2 (en) * 2005-03-24 2007-03-20 Cree, Inc. High power Doherty amplifier using multi-stage modules
JPWO2007015462A1 (ja) * 2005-08-01 2009-02-19 三菱電機株式会社 高効率増幅器
JP4486620B2 (ja) * 2006-06-23 2010-06-23 株式会社エヌ・ティ・ティ・ドコモ マルチバンドドハティ増幅器
EP2383883B1 (en) * 2010-04-23 2013-07-17 Nxp B.V. Power amplifier
KR101255821B1 (ko) * 2011-06-17 2013-04-24 주식회사 피플웍스 삽입형 바이어스 혼합 전력 증폭장치
EP2698918A1 (en) * 2012-08-14 2014-02-19 Nxp B.V. Amplifier circuit
US9407214B2 (en) * 2013-06-28 2016-08-02 Cree, Inc. MMIC power amplifier
DE102013226635B4 (de) * 2013-12-19 2023-07-06 Rohde & Schwarz GmbH & Co. Kommanditgesellschaft Doherty-Verstärker mit zusätzlichem Verzögerungsglied

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01137710A (ja) * 1987-11-24 1989-05-30 Sumitomo Electric Ind Ltd 広帯域増幅器
US5420541A (en) * 1993-06-04 1995-05-30 Raytheon Company Microwave doherty amplifier
US5444418A (en) * 1994-07-29 1995-08-22 Motorola, Inc. Method and apparatus for feedforward power amplifying
JP4047406B2 (ja) * 1996-11-15 2008-02-13 芝浦メカトロニクス株式会社 洗浄処理装置

Also Published As

Publication number Publication date
AU7154696A (en) 1997-06-19
GB2313009A (en) 1997-11-12
DE19681072T1 (de) 1998-01-22
WO1997020385A1 (en) 1997-06-05
FI972345A7 (fi) 1997-06-02
TW322657B (https=) 1997-12-11
KR19980701804A (ko) 1998-06-25
SE9701538D0 (sv) 1997-04-24
FI972345L (fi) 1997-06-02
GB9713888D0 (en) 1997-09-03
JPH10513631A (ja) 1998-12-22
SE9701538L (sv) 1997-09-30
FI972345A0 (fi) 1997-06-02

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued