• DocumentCode
    987833
  • Title

    Gain factor of an offset-fed paraboloidal reflector

  • Author

    Pagones, Michael J.

  • Author_Institution
    Bell Telephone Labs., Inc., Holmdel, NJ, USA
  • Volume
    16
  • Issue
    5
  • fYear
    1968
  • fDate
    9/1/1968 12:00:00 AM
  • Firstpage
    536
  • Lastpage
    541
  • Abstract
    The gain factor of an offset-fed paraboloidal reflector is derived. The reflector is assumed to be in the far field of the feed, and the feed patterns are of the class G_{0}(n) \\cos^{n}\\psi . Results are presented as a function of the angular aperture \\psi_{a} , the offset angle \\psi_{0} , and even values of the feed-pattern parameter n . Phase-error effects due to a displacement of the feed from the focal point are calculated. Displacements of \\lambda /30, \\lambda /20 , and \\lambda /10 are considered. The gain factor is again derived as a function of the previously mentioned parameters and the feed displacement \\delta .
  • Keywords
    Offset reflector antennas; Parabolic reflector antennas; Reflector antennas, offset; Reflector antennas, parabolic; Aperture antennas; Directive antennas; Equations; Feeds; Geometry; Helium; Reflector antennas; Silver; Solids;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.1968.1139240
  • Filename
    1139240