SE9701538L - Förstärkarkrets och förfarande för avstämning av förstärkarkretsen - Google Patents

Förstärkarkrets och förfarande för avstämning av förstärkarkretsen

Info

Publication number
SE9701538L
SE9701538L SE9701538A SE9701538A SE9701538L SE 9701538 L SE9701538 L SE 9701538L SE 9701538 A SE9701538 A SE 9701538A SE 9701538 A SE9701538 A SE 9701538A SE 9701538 L SE9701538 L SE 9701538L
Authority
SE
Sweden
Prior art keywords
amplifier
amplifier circuit
carrier
output signal
circuit
Prior art date
Application number
SE9701538A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Other versions
SE9701538D0 (sv
Inventor
James Frank Long
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of SE9701538D0 publication Critical patent/SE9701538D0/xx
Publication of SE9701538L publication Critical patent/SE9701538L/

Links

Classifications

    • 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
    • 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
    • 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)
SE9701538A 1995-11-30 1997-04-24 Förstärkarkrets och förfarande för avstämning av förstärkarkretsen SE9701538L (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56484595A 1995-11-30 1995-11-30
PCT/US1996/014269 WO1997020385A1 (en) 1995-11-30 1996-09-04 Doherty-type amplifier and tuning method

Publications (2)

Publication Number Publication Date
SE9701538D0 SE9701538D0 (sv) 1997-04-24
SE9701538L true SE9701538L (sv) 1997-09-30

Family

ID=24256136

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701538A SE9701538L (sv) 1995-11-30 1997-04-24 Förstärkarkrets och förfarande för avstämning av förstärkarkretsen

Country Status (10)

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

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
KR100362925B1 (ko) * 1999-03-31 2002-11-29 가부시키가이샤 엔.티.티.도코모 피드포워드 증폭기
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
CN1853343B (zh) 2003-09-17 2012-01-11 日本电气株式会社 放大器
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
US7649412B2 (en) 2005-08-01 2010-01-19 Mitsubishi Electric Corporation High efficiency amplifier
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
KR19980701804A (ko) 1998-06-25
FI972345L (fi) 1997-06-02
SE9701538D0 (sv) 1997-04-24
FI972345A7 (fi) 1997-06-02
WO1997020385A1 (en) 1997-06-05
CA2204409A1 (en) 1997-05-31
GB9713888D0 (en) 1997-09-03
JPH10513631A (ja) 1998-12-22
TW322657B (enExample) 1997-12-11
AU7154696A (en) 1997-06-19
FI972345A0 (fi) 1997-06-02
DE19681072T1 (de) 1998-01-22
GB2313009A (en) 1997-11-12

Similar Documents

Publication Publication Date Title
SE9701538D0 (sv) Förstärkarkrets och förfarande för avstämning av förstärkarkretsen
AU629685B2 (en) Amplifying with directly coupled, cascaded amplifiers
JPS5353946A (en) Power amplifier
MY116892A (en) Bias circuit for a power amplifier
SE0001260L (sv) Bredbandig effektförstärkare med hög verkningsgrad
CA2006683A1 (en) High efficiency uhf linear power amplifier
ES2124973T3 (es) Dispositivo de mando de la polarizacion de un amplificador.
BR9816112A (pt) Transmissor de portador de múltiplas frequências, estação base, e, método de transmissão de frequência de múltiplos portadores
DE69128965D1 (de) Bandpassfilter mit differenzausgang unter verwendung eines geschlitzten ringresonators
ATE263452T1 (de) Vorverzerrer gekoppelt an einen hf verstärker
CA2280878A1 (en) An amplifier for continuous high gain, narrowband signal amplification
TW350171B (en) Amplification circuit and the apparatus
EP0399276A3 (en) Circuit for limiting temperature without distortion in audio power amplifiers
FR2696887B1 (fr) Amplificateur de puissance large bande haute fréquence.
EP0400819A3 (en) Low bias, high slew rate operational amplifier
FI960791A0 (fi) Kytkentäjärjestely keskinäismodulaatiotulosten käsittelemiseksi
CA2022690A1 (en) Optical repeated transmission method and system
MX9602957A (es) Etapa de salida de un amplificador operacional adecuado para montarse sobre un substrato y metodo de amplificacion con el mismo.
GB8829116D0 (en) Phase modulator
HK48184A (en) Push-pull amplifier
EP0346020A3 (en) Drive amplifier circuit
JPS6451704A (en) Feedback amplifier circuit
EP0393856A3 (en) Modulation of adjacent channels
DE3066607D1 (en) Power-amplification device for a composite television signal
AU529911B2 (en) Multipath fm oscillator

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9701538-2