FR2728416B1 - METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER - Google Patents

METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER

Info

Publication number
FR2728416B1
FR2728416B1 FR9415361A FR9415361A FR2728416B1 FR 2728416 B1 FR2728416 B1 FR 2728416B1 FR 9415361 A FR9415361 A FR 9415361A FR 9415361 A FR9415361 A FR 9415361A FR 2728416 B1 FR2728416 B1 FR 2728416B1
Authority
FR
France
Prior art keywords
linc
balancing
tracks
amplifier
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
FR9415361A
Other languages
French (fr)
Other versions
FR2728416A1 (en
Inventor
Jean Paul Bernoux
Jacques Palicot
Jacques Veillard
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Priority to FR9415361A priority Critical patent/FR2728416B1/en
Priority to EP95940325A priority patent/EP0797884A1/en
Priority to PCT/FR1995/001512 priority patent/WO1996019063A1/en
Publication of FR2728416A1 publication Critical patent/FR2728416A1/en
Application granted granted Critical
Publication of FR2728416B1 publication Critical patent/FR2728416B1/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
    • H03F1/02—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
    • H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
FR9415361A 1994-12-15 1994-12-15 METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER Expired - Fee Related FR2728416B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9415361A FR2728416B1 (en) 1994-12-15 1994-12-15 METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER
EP95940325A EP0797884A1 (en) 1994-12-15 1995-11-17 Method of balancing the channels of a linc amplifier
PCT/FR1995/001512 WO1996019063A1 (en) 1994-12-15 1995-11-17 Method of balancing the channels of a linc amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9415361A FR2728416B1 (en) 1994-12-15 1994-12-15 METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER

Publications (2)

Publication Number Publication Date
FR2728416A1 FR2728416A1 (en) 1996-06-21
FR2728416B1 true FR2728416B1 (en) 1997-01-24

Family

ID=9470020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9415361A Expired - Fee Related FR2728416B1 (en) 1994-12-15 1994-12-15 METHOD FOR BALANCING THE TRACKS OF A "LINC" AMPLIFIER

Country Status (3)

Country Link
EP (1) EP0797884A1 (en)
FR (1) FR2728416B1 (en)
WO (1) WO1996019063A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106412B (en) 1998-11-10 2001-01-31 Nokia Mobile Phones Ltd Linear power amplifier arrangement and method for operating it
JP2005151543A (en) * 2003-10-20 2005-06-09 Matsushita Electric Ind Co Ltd Amplifier circuit
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
EP2485448B1 (en) * 2009-02-19 2013-05-08 Research In Motion Limited Mobile wireless communications device with separate in-phase (I) and quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation
US8223885B2 (en) 2009-02-19 2012-07-17 Research In Motion Limited Mobile wireless communications device with separate In-phase (I) and Quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation
EP2695294A1 (en) 2011-04-08 2014-02-12 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
EP3047348A4 (en) 2013-09-17 2016-09-07 Parkervision Inc Method, apparatus and system for rendering an information bearing function of time

Also Published As

Publication number Publication date
FR2728416A1 (en) 1996-06-21
WO1996019063A1 (en) 1996-06-20
EP0797884A1 (en) 1997-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20081020