WO2003012982A8 - Tuned damping circuit for power amplifier output - Google Patents

Tuned damping circuit for power amplifier output

Info

Publication number
WO2003012982A8
WO2003012982A8 PCT/US2002/024148 US0224148W WO03012982A8 WO 2003012982 A8 WO2003012982 A8 WO 2003012982A8 US 0224148 W US0224148 W US 0224148W WO 03012982 A8 WO03012982 A8 WO 03012982A8
Authority
WO
WIPO (PCT)
Prior art keywords
coupled
damping circuit
circuit
terminal coupled
reference potential
Prior art date
Application number
PCT/US2002/024148
Other languages
French (fr)
Other versions
WO2003012982A3 (en
WO2003012982A9 (en
WO2003012982A2 (en
Inventor
Thomas R Apel
Original Assignee
Triquint Semiconductor 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 Triquint Semiconductor Inc filed Critical Triquint Semiconductor Inc
Priority to AU2002322784A priority Critical patent/AU2002322784A1/en
Publication of WO2003012982A2 publication Critical patent/WO2003012982A2/en
Publication of WO2003012982A3 publication Critical patent/WO2003012982A3/en
Publication of WO2003012982A8 publication Critical patent/WO2003012982A8/en
Publication of WO2003012982A9 publication Critical patent/WO2003012982A9/en

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
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • 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
    • H03F1/3205—Modifications of amplifiers to reduce non-linear distortion in field-effect transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H03F3/1935—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices with junction-FET devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/387—A circuit being added at the output of an amplifier to adapt the output impedance of the amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

An amplifying circuit (10) includes an amplifying transistor (12) that has a first terminal coupled to receive an input signal (RFIN), a second terminal coupled to a first reference potential, and a third terminal coupled to an output terminal. The amplifying circuit also includes a damping circuit (26) with a first terminal coupled to the output terminal and a second terminal coupled to the first reference potential or a second reference potential. The damping circuit (26) includes a capacitor (28) and inductor (30) coupled in parallel, as well as a resistor (32) coupled in series with the capacitor and the inductor. In one embodiment, the damping circuit (26) is tuned to present a maximum impedance at the operating frequency of the amplifying circuit (10). This reduces or eliminates parametric mode instabilities caused by non-linear capacitive elements on the output side of the amplifying circuit (10).
PCT/US2002/024148 2001-08-01 2002-07-29 Tuned damping circuit for power amplifier output WO2003012982A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002322784A AU2002322784A1 (en) 2001-08-01 2002-07-29 Tuned damping circuit for power amplifier output

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92119801A 2001-08-01 2001-08-01
US09/921,198 2001-08-01

Publications (4)

Publication Number Publication Date
WO2003012982A2 WO2003012982A2 (en) 2003-02-13
WO2003012982A3 WO2003012982A3 (en) 2003-04-24
WO2003012982A8 true WO2003012982A8 (en) 2004-12-16
WO2003012982A9 WO2003012982A9 (en) 2005-02-17

Family

ID=25445074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/024148 WO2003012982A2 (en) 2001-08-01 2002-07-29 Tuned damping circuit for power amplifier output

Country Status (2)

Country Link
AU (1) AU2002322784A1 (en)
WO (1) WO2003012982A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2411062B (en) * 2004-02-11 2007-11-28 Nujira Ltd Resonance suppression for power amplifier output network

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582804A (en) * 1969-03-28 1971-06-01 Trw Inc Distributed amplifier damping circuits
JP3120583B2 (en) * 1992-08-25 2000-12-25 株式会社デンソー High frequency amplifier stabilization circuit
US5608353A (en) * 1995-03-29 1997-03-04 Rf Micro Devices, Inc. HBT power amplifier

Also Published As

Publication number Publication date
AU2002322784A1 (en) 2003-02-17
WO2003012982A3 (en) 2003-04-24
WO2003012982A9 (en) 2005-02-17
WO2003012982A2 (en) 2003-02-13

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