ATE432578T1 - Verfahren und vorrichtung zum linearisierung in einem quadratur sender - Google Patents

Verfahren und vorrichtung zum linearisierung in einem quadratur sender

Info

Publication number
ATE432578T1
ATE432578T1 AT04719464T AT04719464T ATE432578T1 AT E432578 T1 ATE432578 T1 AT E432578T1 AT 04719464 T AT04719464 T AT 04719464T AT 04719464 T AT04719464 T AT 04719464T AT E432578 T1 ATE432578 T1 AT E432578T1
Authority
AT
Austria
Prior art keywords
loop
forward path
power amplifier
adjustment function
feedback
Prior art date
Application number
AT04719464T
Other languages
English (en)
Inventor
Moshe Ben-Ayun
Gabriela Nocham
Mark Rozental
Original Assignee
Motorola 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 Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE432578T1 publication Critical patent/ATE432578T1/de

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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/153—Feedback used to stabilise the amplifier
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
AT04719464T 2003-03-31 2004-03-11 Verfahren und vorrichtung zum linearisierung in einem quadratur sender ATE432578T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0307372A GB2400250B (en) 2003-03-31 2003-03-31 Wireless communication unit and linearised transmitter circuit therefor
PCT/EP2004/050295 WO2004088945A1 (en) 2003-03-31 2004-03-11 Method and apparatus for linearization in a quadrature transmitter

Publications (1)

Publication Number Publication Date
ATE432578T1 true ATE432578T1 (de) 2009-06-15

Family

ID=9955858

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04719464T ATE432578T1 (de) 2003-03-31 2004-03-11 Verfahren und vorrichtung zum linearisierung in einem quadratur sender

Country Status (7)

Country Link
US (1) US7353005B2 (de)
EP (1) EP1611724B1 (de)
KR (1) KR100759723B1 (de)
AT (1) ATE432578T1 (de)
DE (1) DE602004021245D1 (de)
GB (1) GB2400250B (de)
WO (1) WO2004088945A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8139676B2 (en) * 2007-01-17 2012-03-20 Motorola Solutions, Inc. Wireless communication unit, linearised transmitter circuit and method of linearising therein
US8175553B2 (en) * 2007-01-17 2012-05-08 Motorola Solutions, Inc. Wireless communication unit, linearised transmitter circuit and method of linearising therein
US7787565B2 (en) * 2007-05-03 2010-08-31 Motorola, Inc. System and method for performing baseband phase shifting in a Cartesian feedback system
US7719355B2 (en) * 2007-05-31 2010-05-18 Motorola, Inc. Method and apparatus for providing a Cartesian training waveform
KR100983604B1 (ko) 2008-07-22 2010-09-24 에이피시스템 주식회사 향상된 효율을 갖는 카테시안 피드백 선형화 장치
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

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5134718A (en) * 1990-10-31 1992-07-28 Motorola, Inc. Fast phase shift adjusting method and device for linear transmitter
GB2265269B (en) * 1992-03-02 1995-08-30 Motorola Ltd Radio transmitter with linearization training sequence
DE69324210T2 (de) 1992-11-16 1999-08-05 Linear Modulation Tech Automatische Kalibrierung der Quadraturbalance in einem kartesischen Verstärker
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
GB9715278D0 (en) * 1997-07-18 1997-09-24 Cambridge Consultants Signal processing system
US5990734A (en) * 1998-06-19 1999-11-23 Datum Telegraphic Inc. System and methods for stimulating and training a power amplifier during non-transmission events
FI105612B (fi) * 1998-10-23 2000-09-15 Nokia Networks Oy Menetelmä ja kytkentä vaihevirheen korjaamiseksi tehovahvistimen linearisointisilmukassa
GB9906417D0 (en) * 1999-03-19 1999-05-12 Simoco Int Ltd Radio transmitters
DE19946669C2 (de) * 1999-09-29 2001-09-27 Rohde & Schwarz Verfahren zum Einstellen eines Phasenwinkels eines Phasenschiebers einer Sendeeinrichtung
KR100398664B1 (ko) * 2001-02-21 2003-09-19 주식회사 쏠리테크 중간주파수 대역 사전왜곡에 의한 전력 증폭기 선형화 장치
US7177366B1 (en) * 2001-09-06 2007-02-13 The Board Of Trustees Of The Leland Stanford Junior University Automatic phase alignment for high-bandwidth cartesian-feedback power amplifiers

Also Published As

Publication number Publication date
WO2004088945A1 (en) 2004-10-14
GB2400250A (en) 2004-10-06
EP1611724A1 (de) 2006-01-04
US7353005B2 (en) 2008-04-01
EP1611724B1 (de) 2009-05-27
US20060234654A1 (en) 2006-10-19
KR20060002911A (ko) 2006-01-09
KR100759723B1 (ko) 2007-09-20
GB2400250B (en) 2005-05-25
DE602004021245D1 (de) 2009-07-09
GB0307372D0 (en) 2003-05-07

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Legal Events

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