• DocumentCode
    973818
  • Title

    The determination of noise temperatures of large paraboloidal antennas

  • Author

    Schuster, D. ; Stelzried, C.T. ; Levy, G.S.

  • Author_Institution
    California Institute of Technology, Pasadena, CA, USA
  • Volume
    10
  • Issue
    3
  • fYear
    1962
  • fDate
    5/1/1962 12:00:00 AM
  • Firstpage
    286
  • Lastpage
    291
  • Abstract
    A maser receiving system may have higher noise contributions from the antenna and transmission line than from the amplifier. To develop lower-noise receiving systems, it therefore is important to know the antenna and transmission-line noise temperature as well as the receiver noise temperature. Several techniques for the measurement of absolute antenna noise temperature have been tested at the Jet Propulsion Laboratory (JPL). Experiments have been conducted at 960 and 2388 Mc using an 85-ft paraboloidal reflector with several antenna feed configurations. At 2388 Mc, an antenna noise temperature of 15\\deg K has been attained with an efficient antenna feed.
  • Keywords
    Antenna measurements; Antenna noise; Parabolic reflector antennas; Reflector antennas, parabolic; Antenna feeds; Antenna measurements; Masers; Noise measurement; Receiving antennas; Temperature; Transmission line antennas; Transmission line measurements; Transmission lines; Transmitting antennas;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IRE Transactions on
  • Publisher
    ieee
  • ISSN
    0096-1973
  • Type

    jour

  • DOI
    10.1109/TAP.1962.1137856
  • Filename
    1137856
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=973818