GB0204047D0 - An apparatus and method for power amplifier linerisation - Google Patents

An apparatus and method for power amplifier linerisation

Info

Publication number
GB0204047D0
GB0204047D0 GB0204047A GB0204047A GB0204047D0 GB 0204047 D0 GB0204047 D0 GB 0204047D0 GB 0204047 A GB0204047 A GB 0204047A GB 0204047 A GB0204047 A GB 0204047A GB 0204047 D0 GB0204047 D0 GB 0204047D0
Authority
GB
United Kingdom
Prior art keywords
linerisation
power amplifier
amplifier
power
amplifier linerisation
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0204047A
Other versions
GB2385730A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Priority to GB0204047A priority Critical patent/GB2385730A/en
Publication of GB0204047D0 publication Critical patent/GB0204047D0/en
Publication of GB2385730A publication Critical patent/GB2385730A/en
Withdrawn legal-status Critical Current

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio 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
    • H03F1/32—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
    • H03F1/3294—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
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
GB0204047A 2002-02-20 2002-02-20 An apparatus and method for power amplifier linearisation Withdrawn GB2385730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0204047A GB2385730A (en) 2002-02-20 2002-02-20 An apparatus and method for power amplifier linearisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0204047A GB2385730A (en) 2002-02-20 2002-02-20 An apparatus and method for power amplifier linearisation

Publications (2)

Publication Number Publication Date
GB0204047D0 true GB0204047D0 (en) 2002-04-03
GB2385730A GB2385730A (en) 2003-08-27

Family

ID=9931466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0204047A Withdrawn GB2385730A (en) 2002-02-20 2002-02-20 An apparatus and method for power amplifier linearisation

Country Status (1)

Country Link
GB (1) GB2385730A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7349490B2 (en) * 2003-04-16 2008-03-25 Powerwave Technologies, Inc. Additive digital predistortion system employing parallel path coordinate conversion
KR100518456B1 (en) 2003-10-10 2005-09-30 학교법인 포항공과대학교 Digital feedback linearizer for linearizing power amplifier and method therefor
AU2003287118A1 (en) 2003-11-25 2005-06-17 Telefonaktiebolaget Lm Ericsson (Publ) Power amplifier pre-distorter training
GB2463015A (en) * 2008-08-27 2010-03-03 Roke Manor Research An RF transmitter with distortion reduction by feedforward of a model-derived error signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
US5923712A (en) * 1997-05-05 1999-07-13 Glenayre Electronics, Inc. Method and apparatus for linear transmission by direct inverse modeling
GB2337169A (en) * 1998-05-07 1999-11-10 Nokia Mobile Phones Ltd An adaptive predistorter for an amplifier
GB2351624B (en) * 1999-06-30 2003-12-03 Wireless Systems Int Ltd Reducing distortion of signals
US6356146B1 (en) * 1999-07-13 2002-03-12 Pmc-Sierra, Inc. Amplifier measurement and modeling processes for use in generating predistortion parameters
JP2001111438A (en) * 1999-10-13 2001-04-20 Nec Corp Transmitter and distortion compensation method to be used for the transmitter

Also Published As

Publication number Publication date
GB2385730A (en) 2003-08-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)