GB2394374B - Improvements in or relating to RF transmitters - Google Patents

Improvements in or relating to RF transmitters

Info

Publication number
GB2394374B
GB2394374B GB0224135A GB0224135A GB2394374B GB 2394374 B GB2394374 B GB 2394374B GB 0224135 A GB0224135 A GB 0224135A GB 0224135 A GB0224135 A GB 0224135A GB 2394374 B GB2394374 B GB 2394374B
Authority
GB
United Kingdom
Prior art keywords
transmitters
relating
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
GB0224135A
Other versions
GB0224135D0 (en
GB2394374A (en
Inventor
Andrew Altham
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.)
Siemens AG
Roke Manor Research Ltd
Original Assignee
Siemens AG
Roke Manor Research 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 Siemens AG, Roke Manor Research Ltd filed Critical Siemens AG
Priority to GB0224135A priority Critical patent/GB2394374B/en
Publication of GB0224135D0 publication Critical patent/GB0224135D0/en
Publication of GB2394374A publication Critical patent/GB2394374A/en
Application granted granted Critical
Publication of GB2394374B publication Critical patent/GB2394374B/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
    • H03F1/3247—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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB0224135A 2002-10-17 2002-10-17 Improvements in or relating to RF transmitters Expired - Fee Related GB2394374B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0224135A GB2394374B (en) 2002-10-17 2002-10-17 Improvements in or relating to RF transmitters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0224135A GB2394374B (en) 2002-10-17 2002-10-17 Improvements in or relating to RF transmitters

Publications (3)

Publication Number Publication Date
GB0224135D0 GB0224135D0 (en) 2002-11-27
GB2394374A GB2394374A (en) 2004-04-21
GB2394374B true GB2394374B (en) 2006-06-14

Family

ID=9946059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0224135A Expired - Fee Related GB2394374B (en) 2002-10-17 2002-10-17 Improvements in or relating to RF transmitters

Country Status (1)

Country Link
GB (1) GB2394374B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5242024B2 (en) * 2006-06-08 2013-07-24 株式会社東芝 Distortion compensation device, amplification device, transmission device, and distortion compensation method
US8654889B2 (en) * 2010-03-26 2014-02-18 The Aerospace Corporation Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers
US8711974B2 (en) 2011-05-06 2014-04-29 The Aerospace Corporation Systems and methods for mitigating spectral regrowth from non-linear systems
US9026391B2 (en) 2012-02-29 2015-05-05 Intel Mobile Commnications GmbH Distortion estimation apparatus and method
FR3012272B1 (en) * 2013-10-18 2017-05-26 Thales Sa SYSTEM AND METHOD FOR AMPLIFYING A SIGNAL

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283629A (en) * 1993-10-26 1995-05-10 Motorola Ltd Splatter-reduced training for adaptive pre-distortion or cartesian feedback linearizers
US5900778A (en) * 1997-05-08 1999-05-04 Stonick; John T. Adaptive parametric signal predistorter for compensation of time varying linear and nonlinear amplifier distortion
US6072364A (en) * 1997-06-17 2000-06-06 Amplix Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains
EP1067676A1 (en) * 1999-06-30 2001-01-10 Alcatel Method for linearising a power amplifier over a wide frequency band
WO2001005026A1 (en) * 1999-07-13 2001-01-18 Pmc-Sierra, Inc. A wideband digital predistortion linearizer for nonlinear amplifiers
GB2359432A (en) * 2000-02-17 2001-08-22 Wireless Systems Int Ltd Predistortion or feedforward linearizer for an amplifier in which a restricted frequency range of the input and output signals are compared
US20020012404A1 (en) * 2000-07-20 2002-01-31 Lg Electronics Inc. Predistortion linearizer and method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283629A (en) * 1993-10-26 1995-05-10 Motorola Ltd Splatter-reduced training for adaptive pre-distortion or cartesian feedback linearizers
US5900778A (en) * 1997-05-08 1999-05-04 Stonick; John T. Adaptive parametric signal predistorter for compensation of time varying linear and nonlinear amplifier distortion
US6072364A (en) * 1997-06-17 2000-06-06 Amplix Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains
EP1067676A1 (en) * 1999-06-30 2001-01-10 Alcatel Method for linearising a power amplifier over a wide frequency band
WO2001005026A1 (en) * 1999-07-13 2001-01-18 Pmc-Sierra, Inc. A wideband digital predistortion linearizer for nonlinear amplifiers
GB2359432A (en) * 2000-02-17 2001-08-22 Wireless Systems Int Ltd Predistortion or feedforward linearizer for an amplifier in which a restricted frequency range of the input and output signals are compared
US20020012404A1 (en) * 2000-07-20 2002-01-31 Lg Electronics Inc. Predistortion linearizer and method thereof

Also Published As

Publication number Publication date
GB0224135D0 (en) 2002-11-27
GB2394374A (en) 2004-04-21

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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)

Free format text: REGISTERED BETWEEN 20090205 AND 20090211

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081017