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AU2001228689A1 - Distortion reduction - Google Patents

Distortion reduction

Info

Publication number
AU2001228689A1
AU2001228689A1 AU2001228689A AU2868901A AU2001228689A1 AU 2001228689 A1 AU2001228689 A1 AU 2001228689A1 AU 2001228689 A AU2001228689 A AU 2001228689A AU 2868901 A AU2868901 A AU 2868901A AU 2001228689 A1 AU2001228689 A1 AU 2001228689A1
Authority
AU
Australia
Prior art keywords
distortion reduction
distortion
reduction
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.)
Abandoned
Application number
AU2001228689A
Inventor
Steven Richard Ring
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
Application filed by Wireless Systems International Ltd filed Critical Wireless Systems International Ltd
Publication of AU2001228689A1 publication Critical patent/AU2001228689A1/en
Abandoned 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
    • H03F1/3282—Acting on the phase and the amplitude of the input signal
    • H03F1/3288—Acting on the phase and the amplitude of the input signal to compensate phase shift as a function of the amplitude

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AU2001228689A 2000-02-01 2001-01-29 Distortion reduction Abandoned AU2001228689A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0002321A GB2358974B (en) 2000-02-01 2000-02-01 Distortion reduction
GB0002321 2000-02-01
PCT/GB2001/000366 WO2001058008A2 (en) 2000-02-01 2001-01-29 Distortion reduction

Publications (1)

Publication Number Publication Date
AU2001228689A1 true AU2001228689A1 (en) 2001-08-14

Family

ID=9884773

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001228689A Abandoned AU2001228689A1 (en) 2000-02-01 2001-01-29 Distortion reduction

Country Status (4)

Country Link
US (1) US6750710B2 (en)
AU (1) AU2001228689A1 (en)
GB (1) GB2358974B (en)
WO (1) WO2001058008A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7657241B2 (en) 2002-02-01 2010-02-02 Qualcomm, Incorporated Distortion reduction calibration
US6963242B2 (en) * 2003-07-31 2005-11-08 Andrew Corporation Predistorter for phase modulated signals with low peak to average ratios
US7146138B2 (en) * 2003-10-21 2006-12-05 Kiomars Anvari Power boosting technique for wireless multi-carrier power amplifier
JP4199680B2 (en) * 2004-01-08 2008-12-17 パナソニック株式会社 Transmitter
US7483680B2 (en) * 2005-12-20 2009-01-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for modulation path delay mismatch compensation in a polar modulation transmitter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
EP0378719B1 (en) * 1989-01-18 1994-04-27 Siemens Aktiengesellschaft Digital distortion generator
FR2652470A1 (en) * 1989-09-28 1991-03-29 Alcatel Transmission Method and device for limiting the rise of secondary lobes in a power transmission installation for a digital single carrier having two or four phase states
FR2707127A1 (en) 1993-06-29 1995-01-06 Philips Laboratoire Electroniq Digital transmission system with predisposition.
IT1265271B1 (en) * 1993-12-14 1996-10-31 Alcatel Italia BASEBAND PREDISTRITORTION SYSTEM FOR THE ADAPTIVE LINEARIZATION OF POWER AMPLIFIERS
JP2967699B2 (en) * 1995-03-06 1999-10-25 日本電気株式会社 Transmission device
US5920808A (en) * 1996-12-12 1999-07-06 Glenayre Electronics, Inc. Method and apparatus for reducing key-up distortion by pre-heating transistors
US5923712A (en) * 1997-05-05 1999-07-13 Glenayre Electronics, Inc. Method and apparatus for linear transmission by direct inverse modeling
US6112062A (en) * 1997-09-26 2000-08-29 The Whitaker Corporation Predistortion for high power amplifiers
GB2337169A (en) * 1998-05-07 1999-11-10 Nokia Mobile Phones Ltd An adaptive predistorter for an amplifier
JP3590571B2 (en) * 2000-08-30 2004-11-17 株式会社日立国際電気 Distortion compensator

Also Published As

Publication number Publication date
GB2358974B (en) 2002-07-17
GB2358974A (en) 2001-08-08
GB0002321D0 (en) 2000-03-22
US6750710B2 (en) 2004-06-15
US20030179042A1 (en) 2003-09-25
WO2001058008A2 (en) 2001-08-09
WO2001058008A3 (en) 2002-01-03

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