JP4024867B2 - 効率的なパラレルステージ電力アンプ - Google Patents

効率的なパラレルステージ電力アンプ Download PDF

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Publication number
JP4024867B2
JP4024867B2 JP52679198A JP52679198A JP4024867B2 JP 4024867 B2 JP4024867 B2 JP 4024867B2 JP 52679198 A JP52679198 A JP 52679198A JP 52679198 A JP52679198 A JP 52679198A JP 4024867 B2 JP4024867 B2 JP 4024867B2
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Japan
Prior art keywords
amplifier
signal
input
stage
output
Prior art date
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Expired - Lifetime
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JP52679198A
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English (en)
Japanese (ja)
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JP2001524275A (ja
JP2001524275A5 (https=
Inventor
セビック、ジョン・エフ
カマリロ、リチャード・ジェイ
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Qualcomm Inc
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Qualcomm Inc
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Publication of JP2001524275A5 publication Critical patent/JP2001524275A5/ja
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    • 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
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several 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
    • H03F1/02—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
    • H03F1/0277—Selecting one or more amplifiers from a plurality of 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
    • H03F1/02—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
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • 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
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7236—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers by (a ) switch(es)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP52679198A 1996-12-09 1997-12-05 効率的なパラレルステージ電力アンプ Expired - Lifetime JP4024867B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/767,124 US5872481A (en) 1995-12-27 1996-12-09 Efficient parallel-stage power amplifier
US08/767,124 1996-12-09
PCT/US1997/022113 WO1998026503A1 (en) 1996-12-09 1997-12-05 Efficient parallel-stage power amplifier

Publications (3)

Publication Number Publication Date
JP2001524275A JP2001524275A (ja) 2001-11-27
JP2001524275A5 JP2001524275A5 (https=) 2005-08-11
JP4024867B2 true JP4024867B2 (ja) 2007-12-19

Family

ID=25078550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52679198A Expired - Lifetime JP4024867B2 (ja) 1996-12-09 1997-12-05 効率的なパラレルステージ電力アンプ

Country Status (11)

Country Link
US (1) US5872481A (https=)
EP (1) EP0941575B1 (https=)
JP (1) JP4024867B2 (https=)
KR (1) KR100560335B1 (https=)
CN (1) CN1148870C (https=)
AU (1) AU724403B2 (https=)
BR (1) BR9713881B1 (https=)
CA (1) CA2273151C (https=)
DE (1) DE69727962T2 (https=)
IL (1) IL130120A (https=)
WO (1) WO1998026503A1 (https=)

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CN1148870C (zh) 2004-05-05
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CA2273151A1 (en) 1998-06-18
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IL130120A0 (en) 2000-06-01
WO1998026503A1 (en) 1998-06-18
KR100560335B1 (ko) 2006-03-14
EP0941575A1 (en) 1999-09-15
US5872481A (en) 1999-02-16
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AU724403B2 (en) 2000-09-21
IL130120A (en) 2003-05-29
BR9713881B1 (pt) 2009-08-11
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HK1022794A1 (en) 2000-08-18

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