WO2009031042A3 - N-way doherty distributed power amplifier - Google Patents

N-way doherty distributed power amplifier Download PDF

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Publication number
WO2009031042A3
WO2009031042A3 PCT/IB2008/003079 IB2008003079W WO2009031042A3 WO 2009031042 A3 WO2009031042 A3 WO 2009031042A3 IB 2008003079 W IB2008003079 W IB 2008003079W WO 2009031042 A3 WO2009031042 A3 WO 2009031042A3
Authority
WO
WIPO (PCT)
Prior art keywords
amplifier
way doherty
power
power amplifier
improve
Prior art date
Application number
PCT/IB2008/003079
Other languages
French (fr)
Other versions
WO2009031042A2 (en
Inventor
Wan-Jong Kim
Kyoung-Joon Cho
Shawn Patrick Stapleton
Jong-Heon Kim
Original Assignee
Dali Systems Co. Ltd.
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 Dali Systems Co. Ltd. filed Critical Dali Systems Co. Ltd.
Priority to JP2010504909A priority Critical patent/JP5474764B2/en
Priority to CN200880021149.0A priority patent/CN102089966B/en
Priority to EP08829011.9A priority patent/EP2145385B1/en
Priority to KR20097024268A priority patent/KR101484796B1/en
Publication of WO2009031042A2 publication Critical patent/WO2009031042A2/en
Publication of WO2009031042A3 publication Critical patent/WO2009031042A3/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
    • H03F1/02—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
    • H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • 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
    • 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
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • 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
    • 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
    • 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
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/605—Distributed amplifiers
    • H03F3/607—Distributed amplifiers using FET's
    • 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
    • H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion
    • 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
    • H04B2001/0441—Circuits with power amplifiers with linearisation using feed-forward
    • 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
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency

Abstract

A power amplifier using N-way Doherty structure for extending the efficiency region over the high peak-to-average power ratio of the multiplexing modulated signals such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. In an embodiment, the present invention uses a dual-feed distributed structure to an N-way Doherty amplifier to improve the isolation between at least one main amplifier and at least one peaking amplifier and, and also to improve both gain and efficiency performance at high output back-off power. Hybrid couplers can be used at either or both of the input and output. In at least some implementations, circuit space is also conserved due to the integration of amplification, power splitting and combining.
PCT/IB2008/003079 2007-04-23 2008-04-23 N-way doherty distributed power amplifier WO2009031042A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010504909A JP5474764B2 (en) 2007-04-23 2008-04-23 N-way distributed power amplifier
CN200880021149.0A CN102089966B (en) 2007-04-23 2008-04-23 N road DOHERTY distributed power amplifier
EP08829011.9A EP2145385B1 (en) 2007-04-23 2008-04-23 N-way doherty distributed power amplifier
KR20097024268A KR101484796B1 (en) 2007-04-23 2008-04-23 N-way doherty distributed power amplifier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92557707P 2007-04-23 2007-04-23
US60/925,577 2007-04-23

Publications (2)

Publication Number Publication Date
WO2009031042A2 WO2009031042A2 (en) 2009-03-12
WO2009031042A3 true WO2009031042A3 (en) 2011-04-28

Family

ID=40026913

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/003079 WO2009031042A2 (en) 2007-04-23 2008-04-23 N-way doherty distributed power amplifier

Country Status (6)

Country Link
US (1) US7688135B2 (en)
EP (1) EP2145385B1 (en)
JP (1) JP5474764B2 (en)
KR (1) KR101484796B1 (en)
CN (1) CN102089966B (en)
WO (1) WO2009031042A2 (en)

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Also Published As

Publication number Publication date
US20080284509A1 (en) 2008-11-20
EP2145385B1 (en) 2018-10-17
EP2145385A4 (en) 2014-06-11
JP2010530148A (en) 2010-09-02
EP2145385A2 (en) 2010-01-20
JP5474764B2 (en) 2014-04-16
US7688135B2 (en) 2010-03-30
CN102089966B (en) 2016-02-03
KR101484796B1 (en) 2015-01-20
KR20100017214A (en) 2010-02-16
WO2009031042A2 (en) 2009-03-12
CN102089966A (en) 2011-06-08

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