WO2006088604A3 - Method and apparatus for an improved power amplifier - Google Patents

Method and apparatus for an improved power amplifier Download PDF

Info

Publication number
WO2006088604A3
WO2006088604A3 PCT/US2006/001960 US2006001960W WO2006088604A3 WO 2006088604 A3 WO2006088604 A3 WO 2006088604A3 US 2006001960 W US2006001960 W US 2006001960W WO 2006088604 A3 WO2006088604 A3 WO 2006088604A3
Authority
WO
WIPO (PCT)
Prior art keywords
output
power amplifier
balun
improved power
amplifier
Prior art date
Application number
PCT/US2006/001960
Other languages
French (fr)
Other versions
WO2006088604A2 (en
WO2006088604B1 (en
Inventor
Lawrence Burns
Chong Woo
Wendell Sander
Original Assignee
Amalfi Semiconductor Inc
Lawrence Burns
Chong Woo
Wendell Sander
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
Priority claimed from US11/060,622 external-priority patent/US7999613B2/en
Priority claimed from US11/060,658 external-priority patent/US7358806B2/en
Application filed by Amalfi Semiconductor Inc, Lawrence Burns, Chong Woo, Wendell Sander filed Critical Amalfi Semiconductor Inc
Priority to EP06718958A priority Critical patent/EP1854208A4/en
Publication of WO2006088604A2 publication Critical patent/WO2006088604A2/en
Publication of WO2006088604A3 publication Critical patent/WO2006088604A3/en
Publication of WO2006088604B1 publication Critical patent/WO2006088604B1/en

Links

Classifications

    • 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
    • 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
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • 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
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/06—A balun, i.e. balanced to or from unbalanced converter, being present at the input of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/09—A balun, i.e. balanced to or from unbalanced converter, being present at the output of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/198—A hybrid coupler being used as coupling circuit between stages of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/204—A hybrid coupler being used at the output of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/315—Indexing scheme relating to amplifiers the loading circuit of an amplifying stage comprising a transmission line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/534—Transformer coupled at the input of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

An amplifier system (52) is provided that has a first balun (48) with an input and an output, and a second balun (18) with an input a an output. A first set of amplifiers (40) is coupled in series and to the output of the first balun (48). A second set of amplifiers (36) is coupled in series and to the output of the second balun. The first and second sets of amplifiers are in series of parallel. A load impedance of the first and second sets of amplifier does not substantially change at an output of any amplifier that is switched on when another amplifier is switched off.
PCT/US2006/001960 2005-02-16 2006-01-17 Method and apparatus for an improved power amplifier WO2006088604A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06718958A EP1854208A4 (en) 2005-02-16 2006-01-17 Method and apparatus for an improved power amplifier

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/060,622 US7999613B2 (en) 2004-07-08 2005-02-16 Method and apparatus for an improved power amplifier
US11/060,658 2005-02-16
US11/060,622 2005-02-16
US11/060,658 US7358806B2 (en) 2004-07-08 2005-02-16 Method and apparatus for an improved power amplifier

Publications (3)

Publication Number Publication Date
WO2006088604A2 WO2006088604A2 (en) 2006-08-24
WO2006088604A3 true WO2006088604A3 (en) 2006-12-21
WO2006088604B1 WO2006088604B1 (en) 2007-02-22

Family

ID=36916910

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/001960 WO2006088604A2 (en) 2005-02-16 2006-01-17 Method and apparatus for an improved power amplifier

Country Status (2)

Country Link
EP (1) EP1854208A4 (en)
WO (1) WO2006088604A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109639248B (en) * 2018-12-07 2020-08-11 曹秀妹 Dual-mode power amplifier capable of switching working power and mode switching method
WO2022229682A1 (en) * 2021-04-30 2022-11-03 Telefonaktiebolaget Lm Ericsson (Publ) Magnitude and phase adjustment method for high output power rf power amplifier combining

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030222709A1 (en) * 2002-06-01 2003-12-04 Song-Gang Kim High efficiency power amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0454006A (en) * 1990-06-22 1992-02-21 Fujitsu Ltd Amplifier
JP3877558B2 (en) * 2001-09-11 2007-02-07 株式会社ルネサステクノロジ High frequency power amplifier, high frequency power amplifier module, and mobile phone
US7054597B2 (en) * 2003-06-25 2006-05-30 Nokia Corporation Power control for a transmitter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030222709A1 (en) * 2002-06-01 2003-12-04 Song-Gang Kim High efficiency power amplifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1854208A4 *

Also Published As

Publication number Publication date
EP1854208A4 (en) 2009-02-18
EP1854208A2 (en) 2007-11-14
WO2006088604A2 (en) 2006-08-24
WO2006088604B1 (en) 2007-02-22

Similar Documents

Publication Publication Date Title
WO2006055891A3 (en) High efficiency doherty amplifier with a segmented main amplifier
EP1959563A3 (en) Doherty amplifying apparatus using a harmonic control circuit
EP1848106A3 (en) Power amplifying apparatus using asymmetric power drive
WO2004049556A3 (en) Direct coupled distributed amplifier
WO2008042709A3 (en) Enhanced doherty amplifier with asymmetrical semiconductors
MY136501A (en) Method and apparatus to match output impedance of combined outphasing power amplifiers
WO2004107563A3 (en) High-efficiency amplifier, converter and methods
WO2006102466A3 (en) High power doherty amplifier using multi-stage modules
WO2004088837A3 (en) Doherty amplifier with output hybrid coupler
EP1750366A3 (en) High reliability RF generator architecture
WO2004027982A3 (en) Linear power amplifier with multiple output power levels
TW200703884A (en) Miller-compensated amplifier
WO2005101678A3 (en) Method and apparatus for dynamically adjusting a transmitter's impedance and implementing a hybrid power amplifier therein which selectively connects linear and switch-mode power amplifiers in series
GB0604282D0 (en) Low noise amplifier
GB2446350A (en) Method and apparatus for reducing current consumption of mimo systems
AU2002358380A1 (en) Composite power amplifier
DE60132601D1 (en)
WO2011031379A3 (en) Boosted-rail amplifier
WO2009139814A3 (en) Modified distributed amplifier to improve low frequency efficiency and noise figure
EP1583228A3 (en) Composite power amplifier
GB2446351A (en) Method and apparatus for optimizing current consumption of amplifiers with power control
WO2006014501A3 (en) Parallel amplifier configuration with power combining and impedance transformation
AU2002223881A1 (en) Lineariser
TW200644455A (en) Circuit for DC offset cancellation
WO2006051450A3 (en) Pre-conditioner with low voltage components

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2006718958

Country of ref document: EP