GB2466218B - Simultaneous supply modulation and circulator elimination with maximum efficiency - Google Patents

Simultaneous supply modulation and circulator elimination with maximum efficiency

Info

Publication number
GB2466218B
GB2466218B GB0822729.0A GB0822729A GB2466218B GB 2466218 B GB2466218 B GB 2466218B GB 0822729 A GB0822729 A GB 0822729A GB 2466218 B GB2466218 B GB 2466218B
Authority
GB
United Kingdom
Prior art keywords
circulator
elimination
maximum efficiency
simultaneous supply
supply modulation
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
GB0822729.0A
Other versions
GB0822729D0 (en
GB2466218A (en
Inventor
Moshe Ben Ayun
Ovadia Grossman
Shay Nir
Mark Rozental
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 Solutions 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 Solutions Inc filed Critical Motorola Solutions Inc
Priority to GB0822729.0A priority Critical patent/GB2466218B/en
Publication of GB0822729D0 publication Critical patent/GB0822729D0/en
Publication of GB2466218A publication Critical patent/GB2466218A/en
Application granted granted Critical
Publication of GB2466218B publication Critical patent/GB2466218B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from 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
    • H03F1/3247—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
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/204—A hybrid coupler being used at the output of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/321—Use of a microprocessor in an amplifier circuit or its control circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/57—Separate feedback of real and complex signals being present

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Transmitters (AREA)
GB0822729.0A 2008-12-12 2008-12-12 Simultaneous supply modulation and circulator elimination with maximum efficiency Expired - Fee Related GB2466218B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0822729.0A GB2466218B (en) 2008-12-12 2008-12-12 Simultaneous supply modulation and circulator elimination with maximum efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0822729.0A GB2466218B (en) 2008-12-12 2008-12-12 Simultaneous supply modulation and circulator elimination with maximum efficiency

Publications (3)

Publication Number Publication Date
GB0822729D0 GB0822729D0 (en) 2009-01-21
GB2466218A GB2466218A (en) 2010-06-16
GB2466218B true GB2466218B (en) 2012-02-01

Family

ID=40326041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0822729.0A Expired - Fee Related GB2466218B (en) 2008-12-12 2008-12-12 Simultaneous supply modulation and circulator elimination with maximum efficiency

Country Status (1)

Country Link
GB (1) GB2466218B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2488119B (en) * 2011-02-15 2015-06-24 Nujira Ltd Power control
GB2522700B (en) * 2014-02-04 2016-04-20 Thales Holdings Uk Plc Amplifier

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043707A (en) * 1999-01-07 2000-03-28 Motorola, Inc. Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
US6407634B1 (en) * 2000-06-16 2002-06-18 Motorola, Inc. Linear envelope tracking RF power amplifier with adaptive analog signal processing
US20030198300A1 (en) * 2002-04-18 2003-10-23 Nokia Corporation Waveforms for envelope tracking transmitter
US6646501B1 (en) * 2002-06-25 2003-11-11 Nortel Networks Limited Power amplifier configuration
US6703897B2 (en) * 2001-12-26 2004-03-09 Nortel Networks Limited Methods of optimising power amplifier efficiency and closed-loop power amplifier controllers
US7026868B2 (en) * 2003-11-20 2006-04-11 Northrop Grumman Corporation Variable supply amplifier system
US7091780B2 (en) * 2002-07-17 2006-08-15 Siemens Aktiengesellschaft Method and apparatus for operating a transmission amplifier
GB2432271A (en) * 2005-11-15 2007-05-16 Motorola Inc A Cartesian RF transmitter with an adaptive amplifier power supply voltage
US20070178856A1 (en) * 2006-01-31 2007-08-02 Mitzlaff James E Method and apparatus for controlling a supply voltage to a power amplifier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043707A (en) * 1999-01-07 2000-03-28 Motorola, Inc. Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
US6407634B1 (en) * 2000-06-16 2002-06-18 Motorola, Inc. Linear envelope tracking RF power amplifier with adaptive analog signal processing
US6703897B2 (en) * 2001-12-26 2004-03-09 Nortel Networks Limited Methods of optimising power amplifier efficiency and closed-loop power amplifier controllers
US20030198300A1 (en) * 2002-04-18 2003-10-23 Nokia Corporation Waveforms for envelope tracking transmitter
US6646501B1 (en) * 2002-06-25 2003-11-11 Nortel Networks Limited Power amplifier configuration
US7091780B2 (en) * 2002-07-17 2006-08-15 Siemens Aktiengesellschaft Method and apparatus for operating a transmission amplifier
US7026868B2 (en) * 2003-11-20 2006-04-11 Northrop Grumman Corporation Variable supply amplifier system
GB2432271A (en) * 2005-11-15 2007-05-16 Motorola Inc A Cartesian RF transmitter with an adaptive amplifier power supply voltage
US20070178856A1 (en) * 2006-01-31 2007-08-02 Mitzlaff James E Method and apparatus for controlling a supply voltage to a power amplifier

Also Published As

Publication number Publication date
GB0822729D0 (en) 2009-01-21
GB2466218A (en) 2010-06-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20211212