• DocumentCode
    1317242
  • Title

    Spatial Interferer Rejection in a Four-Element Beamforming Receiver Front-End With a Switched-Capacitor Vector Modulator

  • Author

    Soer, Michiel C M ; Klumperink, Eric A M ; Nauta, Bram ; Van Vliet, Frank E.

  • Author_Institution
    IC-Design Group, Univ. of Twente, Enschede, Netherlands
  • Volume
    46
  • Issue
    12
  • fYear
    2011
  • Firstpage
    2933
  • Lastpage
    2942
  • Abstract
    A 1-4-GHz 4-element phased array receiver front-end demonstrates spatial interferer rejection using null steering. Element phase and amplitude control are performed by a switched-capacitor vector modulator with integrated downconversion, utilizing a rational sine/cosine approximation. The 65-nm CMOS receiver achieves more than 20 dB of spatial interferer rejection up to an angular separation of 15°.
  • Keywords
    antenna phased arrays; array signal processing; modulators; receiving antennas; 4-element phased array receiver front-end; amplitude control; angular separation; four-element beamforming receiver front-end; null steering; spatial interferer rejection; switched-capacitor vector modulator; Array signal processing; Phase modulation; Phase shifters; Receivers; Switched capacitor networks; Beamforming; interference nulling; mixer; phase shifter; phased arrays; receivers; spatial filtering; switched-capacitor; vector modulator;
  • fLanguage
    English
  • Journal_Title
    Solid-State Circuits, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9200
  • Type

    jour

  • DOI
    10.1109/JSSC.2011.2163553
  • Filename
    6015502
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1317242