CA2068425A1 - Fast phase shift adjusting method and device for linear transmitter - Google Patents

Fast phase shift adjusting method and device for linear transmitter

Info

Publication number
CA2068425A1
CA2068425A1 CA2068425A CA2068425A CA2068425A1 CA 2068425 A1 CA2068425 A1 CA 2068425A1 CA 2068425 A CA2068425 A CA 2068425A CA 2068425 A CA2068425 A CA 2068425A CA 2068425 A1 CA2068425 A1 CA 2068425A1
Authority
CA
Canada
Prior art keywords
phase shift
adjusting method
linear transmitter
input
feedback signal
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.)
Granted
Application number
CA2068425A
Other languages
French (fr)
Other versions
CA2068425C (en
Inventor
Paul Howe Gailus
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
Paul Howe Gailus
Motorola, Inc.
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 Paul Howe Gailus, Motorola, Inc., Motorola Solutions, Inc. filed Critical Paul Howe Gailus
Publication of CA2068425A1 publication Critical patent/CA2068425A1/en
Application granted granted Critical
Publication of CA2068425C publication Critical patent/CA2068425C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • 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
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0433—Circuits with power amplifiers with linearisation using feedback

Abstract

A method (100) and device (300) are set forth for, where a linear transmitter has inphase and quadrature modulation paths for an input signal and at least one open feedback signal path is provided, substantially correcting an initial phase relationship between an input signal having an input signal vector with a phase and a magnitude, and an input feedback signal having an input feedback signal vector with a phase and a magnitude. The present invention provides a more time-efficient phase correction to at least one feedback signal path.
CA002068425A 1990-10-31 1991-09-20 Fast phase shift adjusting method and device for linear transmitter Expired - Lifetime CA2068425C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US607,423 1990-10-31
US07/607,423 US5134718A (en) 1990-10-31 1990-10-31 Fast phase shift adjusting method and device for linear transmitter

Publications (2)

Publication Number Publication Date
CA2068425A1 true CA2068425A1 (en) 1992-05-01
CA2068425C CA2068425C (en) 1995-11-28

Family

ID=24432206

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002068425A Expired - Lifetime CA2068425C (en) 1990-10-31 1991-09-20 Fast phase shift adjusting method and device for linear transmitter

Country Status (10)

Country Link
US (1) US5134718A (en)
EP (1) EP0506908B1 (en)
JP (1) JPH0622335B2 (en)
KR (1) KR950013611B1 (en)
CN (1) CN1022966C (en)
AU (1) AU644961B2 (en)
CA (1) CA2068425C (en)
DE (1) DE69132241T2 (en)
TW (1) TW215135B (en)
WO (1) WO1992008291A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551070A (en) * 1993-01-28 1996-08-27 Telefonaktiebolaget Lm Ericsson Cartesian multicarrier feedback
US5423082A (en) * 1993-06-24 1995-06-06 Motorola, Inc. Method for a transmitter to compensate for varying loading without an isolator
US5559468A (en) * 1993-06-28 1996-09-24 Motorola, Inc. Feedback loop closure in a linear transmitter
DE69433082T2 (en) * 1993-11-30 2004-06-03 Nec Corp. Adaptive linearization of a quadrature modulator
GB2286302B (en) * 1994-01-29 1998-12-16 Motorola Inc Power amplifier and radio transmitter
US5574992A (en) * 1994-04-29 1996-11-12 Motorola, Inc. Method and apparatus for reducing off-channel interference produced by a linear transmitter
GB2293935B (en) * 1994-10-03 1999-07-14 Linear Modulation Tech Automatic calibration of carrier suppression and loop phase in a cartesian amplifier
GB2301247A (en) * 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
US5783968A (en) * 1996-11-14 1998-07-21 Motorola, Inc. RF amplifier method and apparatus
GB9715278D0 (en) 1997-07-18 1997-09-24 Cambridge Consultants Signal processing system
SE512623C2 (en) 1997-11-03 2000-04-10 Ericsson Telefon Ab L M Procedure and device in a telecommunications problem
US6731694B2 (en) 2001-08-07 2004-05-04 Motorola, Inc. Isolator eliminator for a linear transmitter
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
GB2400250B (en) * 2003-03-31 2005-05-25 Motorola Inc Wireless communication unit and linearised transmitter circuit therefor
US7421252B2 (en) * 2005-08-02 2008-09-02 Freescale Semiconductor, Inc. Center frequency control of an integrated phase rotator band-pass filter using VCO coarse trim bits
US7719355B2 (en) * 2007-05-31 2010-05-18 Motorola, Inc. Method and apparatus for providing a Cartesian training waveform
JP4468422B2 (en) * 2007-08-09 2010-05-26 株式会社東芝 Wireless transmitter using Cartesian loop
WO2009147891A1 (en) * 2008-06-02 2009-12-10 株式会社 東芝 Wireless transmission device using cartesian loop
GB2466072B (en) * 2008-12-12 2011-03-23 Motorola Inc Adaptive cartesian loop transmitter for broadband and optimal loop stability adjustment
GB2469076B (en) * 2009-03-31 2013-05-22 Motorola Solutions Inc IQ phase imbalance correction method in cartesian linearization feedback path with dual phase shifters
CN105187346B (en) * 2015-09-25 2019-03-05 海能达通信股份有限公司 The method and transmitter that transmitter phase adaptively adjusts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554656B1 (en) * 1983-11-04 1986-06-27 Lgt Lab Gen Telecomm FREQUENCY MODULATION TRANSMITTER APPLICABLE TO FM BROADCASTING
US4696017A (en) * 1986-02-03 1987-09-22 E-Systems, Inc. Quadrature signal generator having digitally-controlled phase and amplitude correction
US4933986A (en) * 1989-08-25 1990-06-12 Motorola, Inc. Gain/phase compensation for linear amplifier feedback loop
US5066922A (en) * 1989-10-16 1991-11-19 Motorola, Inc. Stabilizing circuit for feedback RF amplifier
US4993986A (en) * 1989-11-01 1991-02-19 Bloomfield Steven L Fuzz blower power tube

Also Published As

Publication number Publication date
EP0506908A1 (en) 1992-10-07
EP0506908B1 (en) 2000-05-31
WO1992008291A1 (en) 1992-05-14
EP0506908A4 (en) 1994-10-12
AU644961B2 (en) 1993-12-23
KR920704437A (en) 1992-12-19
CN1061310A (en) 1992-05-20
JPH05500596A (en) 1993-02-04
CN1022966C (en) 1993-12-01
KR950013611B1 (en) 1995-11-13
US5134718A (en) 1992-07-28
AU1607892A (en) 1993-02-18
TW215135B (en) 1993-10-21
DE69132241T2 (en) 2001-01-04
CA2068425C (en) 1995-11-28
JPH0622335B2 (en) 1994-03-23
DE69132241D1 (en) 2000-07-06

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