GB2335812B - A predistorter - Google Patents

A predistorter

Info

Publication number
GB2335812B
GB2335812B GB9905272A GB9905272A GB2335812B GB 2335812 B GB2335812 B GB 2335812B GB 9905272 A GB9905272 A GB 9905272A GB 9905272 A GB9905272 A GB 9905272A GB 2335812 B GB2335812 B GB 2335812B
Authority
GB
United Kingdom
Prior art keywords
predistorter
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.)
Expired - Fee Related
Application number
GB9905272A
Other versions
GB2335812A (en
GB9905272D0 (en
Inventor
Peter Kennington
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.)
Wireless Systems International Ltd
Original Assignee
Wireless Systems International 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
Priority claimed from GBGB9804835.8A external-priority patent/GB9804835D0/en
Application filed by Wireless Systems International Ltd filed Critical Wireless Systems International Ltd
Priority to GB9905272A priority Critical patent/GB2335812B/en
Publication of GB9905272D0 publication Critical patent/GB9905272D0/en
Publication of GB2335812A publication Critical patent/GB2335812A/en
Application granted granted Critical
Publication of GB2335812B publication Critical patent/GB2335812B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Amplifiers (AREA)
GB9905272A 1998-03-06 1999-03-08 A predistorter Expired - Fee Related GB2335812B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9905272A GB2335812B (en) 1998-03-06 1999-03-08 A predistorter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9804835.8A GB9804835D0 (en) 1998-03-06 1998-03-06 Predistorter
GB9905272A GB2335812B (en) 1998-03-06 1999-03-08 A predistorter

Publications (3)

Publication Number Publication Date
GB9905272D0 GB9905272D0 (en) 1999-04-28
GB2335812A GB2335812A (en) 1999-09-29
GB2335812B true GB2335812B (en) 2000-03-22

Family

ID=26313239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9905272A Expired - Fee Related GB2335812B (en) 1998-03-06 1999-03-08 A predistorter

Country Status (1)

Country Link
GB (1) GB2335812B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358748A (en) * 2000-01-31 2001-08-01 Wireless Systems Int Ltd An arrangement in a predistortion or feedforward linearizer for an amplifier in which I and Q components are adjusted to achieve a desired phase and amplitude
US7170342B2 (en) 2002-12-10 2007-01-30 Ntt Docomo, Inc. Linear power amplification method and linear power amplifier
US7170344B2 (en) 2004-02-03 2007-01-30 Ntt Docomo, Inc. Multi-band predistorter using power series representation
EP1732207B1 (en) 2005-06-03 2008-02-13 NTT DoCoMo INC. Multi-Band lookup table type predistorter
JP4344367B2 (en) 2005-06-06 2009-10-14 株式会社エヌ・ティ・ティ・ドコモ Power series predistorter for multi-frequency band
FR2991527B1 (en) * 2012-05-30 2014-06-27 Centre Nat Etd Spatiales LINEARIZER CALIBRATION METHOD AND LINEARIZED ELECTRONIC COMPONENT
TR202000842A1 (en) * 2020-01-20 2021-07-26 Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi AN ANALOGUE NOISE GENERATOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020146A1 (en) * 1991-04-24 1992-11-12 Northern Telecom Limited Adaptive phase control for a power amplifier predistorter
EP0751614A1 (en) * 1995-06-30 1997-01-02 Nokia Mobile Phones Ltd. Cuber based predistortion circuit and mobile station using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020146A1 (en) * 1991-04-24 1992-11-12 Northern Telecom Limited Adaptive phase control for a power amplifier predistorter
EP0751614A1 (en) * 1995-06-30 1997-01-02 Nokia Mobile Phones Ltd. Cuber based predistortion circuit and mobile station using the same

Also Published As

Publication number Publication date
GB2335812A (en) 1999-09-29
GB9905272D0 (en) 1999-04-28

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100308