GB2430321B - Generation of accurate phase and amplitude matched carriers - Google Patents

Generation of accurate phase and amplitude matched carriers

Info

Publication number
GB2430321B
GB2430321B GB0521532A GB0521532A GB2430321B GB 2430321 B GB2430321 B GB 2430321B GB 0521532 A GB0521532 A GB 0521532A GB 0521532 A GB0521532 A GB 0521532A GB 2430321 B GB2430321 B GB 2430321B
Authority
GB
United Kingdom
Prior art keywords
generation
accurate phase
amplitude matched
carriers
matched carriers
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
GB0521532A
Other versions
GB2430321A (en
GB0521532D0 (en
Inventor
Julian Richard Trinder
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.)
Roke Manor Research Ltd
Original Assignee
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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Publication of GB0521532D0 publication Critical patent/GB0521532D0/en
Priority to EP06120371A priority Critical patent/EP1764912A3/en
Publication of GB2430321A publication Critical patent/GB2430321A/en
Application granted granted Critical
Publication of GB2430321B publication Critical patent/GB2430321B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB0521532A 2005-09-15 2005-10-24 Generation of accurate phase and amplitude matched carriers Expired - Fee Related GB2430321B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06120371A EP1764912A3 (en) 2005-09-15 2006-09-08 Generation of accurate phase and amplitude matched signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0518847.9A GB0518847D0 (en) 2005-09-15 2005-09-15 Generation of accurate phase and amplitude matched signals

Publications (3)

Publication Number Publication Date
GB0521532D0 GB0521532D0 (en) 2005-11-30
GB2430321A GB2430321A (en) 2007-03-21
GB2430321B true GB2430321B (en) 2008-07-23

Family

ID=35248835

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0518847.9A Ceased GB0518847D0 (en) 2005-09-15 2005-09-15 Generation of accurate phase and amplitude matched signals
GB0521532A Expired - Fee Related GB2430321B (en) 2005-09-15 2005-10-24 Generation of accurate phase and amplitude matched carriers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0518847.9A Ceased GB0518847D0 (en) 2005-09-15 2005-09-15 Generation of accurate phase and amplitude matched signals

Country Status (1)

Country Link
GB (2) GB0518847D0 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150128A (en) * 1991-02-15 1992-09-22 Hughes Aircraft Company In-phase and quadrature conversion error compensator
JPH09116583A (en) * 1995-10-18 1997-05-02 Advantest Corp Orthogonal signal generator
US5635876A (en) * 1993-10-05 1997-06-03 Eta Sa Fabriques D'ebauches Phase difference and amplitude correction circuit
US5771263A (en) * 1996-01-08 1998-06-23 Hitachi Denshi Kabushiki Kaisha Communication system control method and communication system using the method
US5949821A (en) * 1996-08-05 1999-09-07 Motorola, Inc. Method and apparatus for correcting phase and gain imbalance between in-phase (I) and quadrature (Q) components of a received signal based on a determination of peak amplitudes
US6137999A (en) * 1997-12-24 2000-10-24 Motorola, Inc. Image reject transceiver and method of rejecting an image
WO2002029985A2 (en) * 2000-10-02 2002-04-11 Intersil Americas Inc. A calibrated dc compensation system for a wireless communication device configured in a zero intermediate frequency architecture
US20030003891A1 (en) * 2001-07-02 2003-01-02 Nokia Corporation Method to improve I/Q-amplitude balance and receiver quadrature channel performance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150128A (en) * 1991-02-15 1992-09-22 Hughes Aircraft Company In-phase and quadrature conversion error compensator
US5635876A (en) * 1993-10-05 1997-06-03 Eta Sa Fabriques D'ebauches Phase difference and amplitude correction circuit
JPH09116583A (en) * 1995-10-18 1997-05-02 Advantest Corp Orthogonal signal generator
US5771263A (en) * 1996-01-08 1998-06-23 Hitachi Denshi Kabushiki Kaisha Communication system control method and communication system using the method
US5949821A (en) * 1996-08-05 1999-09-07 Motorola, Inc. Method and apparatus for correcting phase and gain imbalance between in-phase (I) and quadrature (Q) components of a received signal based on a determination of peak amplitudes
US6137999A (en) * 1997-12-24 2000-10-24 Motorola, Inc. Image reject transceiver and method of rejecting an image
WO2002029985A2 (en) * 2000-10-02 2002-04-11 Intersil Americas Inc. A calibrated dc compensation system for a wireless communication device configured in a zero intermediate frequency architecture
US20030003891A1 (en) * 2001-07-02 2003-01-02 Nokia Corporation Method to improve I/Q-amplitude balance and receiver quadrature channel performance

Also Published As

Publication number Publication date
GB2430321A (en) 2007-03-21
GB0521532D0 (en) 2005-11-30
GB0518847D0 (en) 2005-10-26

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Legal Events

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

Effective date: 20131024