• DocumentCode
    1038053
  • Title

    Performance of offset prime focus reflectors as a function of feed orientation

  • Author

    Prasad, K.M. ; Shafai, Lotfollah

  • Author_Institution
    Dept. of Electrical Eng., Univ. of Manitoba, Winnipeg, Man. Canada
  • Volume
    35
  • Issue
    6
  • fYear
    1987
  • fDate
    6/1/1987 12:00:00 AM
  • Firstpage
    736
  • Lastpage
    739
  • Abstract
    Radiation characteristics of the offset paraboloidal reflectors illunminated by a tilted prime-focus feed are studied employing the physical optics current method. A family of curves is generated which indicates the optimum orientation of the axis Of the feed for maximum antenna efficiency as a function of the offset angle \\beta and the half-angle \\alpha subtended by the rim of the reflector at its focus. A comparative study on efficiency and sidelobe levels is presented for different excitation angles of the feed axis.
  • Keywords
    Offset reflector antennas; Reflector antenna feeds; Reflector antennas, offset; Antennas and propagation; Apertures; Dielectrics; Dipole antennas; Electromagnetic propagation; Electromagnetic scattering; Feeds; Microstrip antenna arrays; Microstrip antennas; Phased arrays;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.1987.1144168
  • Filename
    1144168
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1038053