• DocumentCode
    1038338
  • Title

    Radiation properties of the optimized offset-fed radial rib umbrella reflector antenna

  • Author

    Prata, A., Jr. ; Rusch, Willard V T

  • Author_Institution
    Univ. of Southern California, Los Angeles, CA, USA
  • Volume
    35
  • Issue
    8
  • fYear
    1987
  • fDate
    8/1/1987 12:00:00 AM
  • Firstpage
    977
  • Lastpage
    980
  • Abstract
    The properties of the offset-fed radial rib umbrella reflector are analyzed. A simple formula for positioning the feed to maximize the gain is given. The best aim point for the feed is numerically determined to be very close to the rib center. The exponent of a \\cos^{n} \\alpha feed pattern, evaluated for maximum gain, and the loss due to the gores is presented. It is shown that the offset configuration exhibits the same behavior and position of the gore-related sidelobe as the front-fed umbrella reflector.
  • Keywords
    Offset reflector antennas; Reflector antennas, offset; Umbrella antennas; Aperture antennas; Coaxial components; Equations; Feeds; Geometry; Gratings; Joining processes; Reflector antennas; Ribs;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.1987.1144197
  • Filename
    1144197
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1038338