• DocumentCode
    764543
  • Title

    Shifted-quadrant microwave vector modulator

  • Author

    Kpogla, D.K.A. ; Ng, C.Y. ; Robertson, I.D.

  • Author_Institution
    Microwave Syst. Res. Group, Univ. of Surrey, Guildford, UK
  • Volume
    39
  • Issue
    14
  • fYear
    2003
  • fDate
    7/10/2003 12:00:00 AM
  • Firstpage
    1058
  • Lastpage
    1059
  • Abstract
    A technique is presented whereby a four-quadrant microwave vector modulator can be realised using just two variable gain amplifiers or attenuators. This would normally produce only a single quadrant, so the technique uses a third, fixed, vector to shift the constellation and centre it on the origin. The technique has been demonstrated experimentally at 2 GHz using modular components.
  • Keywords
    MMIC amplifiers; UHF integrated circuits; modulators; transceivers; waveguide attenuators; 2 GHz; MMIC; RFICs; attenuators; constellation; four-quadrant microwave vector modulator; modular components; shifted-quadrant microwave vector modulator; transceiver; variable gain amplifiers;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20030696
  • Filename
    1220814
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=764543