HK1011516A1 - Apparatus for compensating of phase rotation in a final amplifier stage - Google Patents

Apparatus for compensating of phase rotation in a final amplifier stage Download PDF

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Publication number
HK1011516A1
HK1011516A1 HK98112427A HK98112427A HK1011516A1 HK 1011516 A1 HK1011516 A1 HK 1011516A1 HK 98112427 A HK98112427 A HK 98112427A HK 98112427 A HK98112427 A HK 98112427A HK 1011516 A1 HK1011516 A1 HK 1011516A1
Authority
HK
Hong Kong
Prior art keywords
signal
complex
phase rotation
feedback
phase
Prior art date
Application number
HK98112427A
Other languages
German (de)
English (en)
French (fr)
Chinese (zh)
Other versions
HK1011516B (en
Inventor
Seth Thore Bergsten Par
Nystrom Jan-Christian
Original Assignee
Telefonaktiebolaget Lm Ericsson
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 Telefonaktiebolaget Lm Ericsson filed Critical Telefonaktiebolaget Lm Ericsson
Publication of HK1011516A1 publication Critical patent/HK1011516A1/en
Publication of HK1011516B publication Critical patent/HK1011516B/en

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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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3282—Acting on the phase and the amplitude of the input 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3294—Acting on the real and imaginary components of the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3231—Adaptive predistortion using phase feedback from the output of the main amplifier

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
HK98112427.1A 1992-08-24 1993-08-02 Apparatus for compensating of phase rotation in a final amplifier stage HK1011516B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9202420A SE470455B (sv) 1992-08-24 1992-08-24 Anordning för kompensering av fasvridningen i återkopplingsslingan vid en kartesiskt återkopplad effektförstärkare
SE9202420 1992-08-24
PCT/SE1993/000647 WO1994005078A1 (en) 1992-08-24 1993-08-02 Apparatus for compensating of phase rotation in a final amplifier stage

Publications (2)

Publication Number Publication Date
HK1011516A1 true HK1011516A1 (en) 1999-07-09
HK1011516B HK1011516B (en) 1999-07-09

Family

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Also Published As

Publication number Publication date
CA2119867A1 (en) 1994-03-03
WO1994005078A1 (en) 1994-03-03
AU4766093A (en) 1994-03-15
TW228624B (enExample) 1994-08-21
SE9202420D0 (sv) 1992-08-24
CA2119867C (en) 2002-11-26
SE9202420L (sv) 1994-02-25
FI941835A0 (fi) 1994-04-20
EP0609435B1 (en) 1998-05-27
SE470455B (sv) 1994-04-11
DE69318818D1 (de) 1998-07-02
CN1083640A (zh) 1994-03-09
JP3372546B2 (ja) 2003-02-04
DE69318818T2 (de) 1998-09-24
ES2117256T3 (es) 1998-08-01
BR9305621A (pt) 1995-03-01
RU2115222C1 (ru) 1998-07-10
US5483681A (en) 1996-01-09
NZ255003A (en) 1995-12-21
AU662078B2 (en) 1995-08-17
CN1033122C (zh) 1996-10-23
KR100188045B1 (ko) 1999-06-01
JPH07500716A (ja) 1995-01-19
EP0609435A1 (en) 1994-08-10
MX9304985A (es) 1994-02-28
FI941835A7 (fi) 1994-04-20
ATE166754T1 (de) 1998-06-15
MY110112A (en) 1998-01-27

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)