• DocumentCode
    979753
  • Title

    A 5 Gc/s parametric reciever for radio astronomy

  • Author

    Hughes, M.P. ; Moley, E. ; Parenti, D.R. ; Whelehan, J.J.

  • Author_Institution
    Harvard Radio Astronomy Station, Fort Davis, TX, USA
  • Volume
    13
  • Issue
    3
  • fYear
    1965
  • fDate
    5/1/1965 12:00:00 AM
  • Firstpage
    432
  • Lastpage
    436
  • Abstract
    This paper describes a highly sensitive radiometer which features a degenerate parametric amplifier operating near ambient temperature. Some important techniques used to assure requisite stability are discussed in detail and a significant problem, namely that of self-generated interference, is briefly examined. Observational results are presented to demonstrate the performance of the system, which has a sensitivity of 0.05\\deg K with a time constant of 10 seconds.
  • Keywords
    Parametric amplifiers; Radio astronomy; Frequency; Helium; Instruments; Interference; Radio astronomy; Radiometry; Receivers; Receiving antennas; Stability; Temperature sensors;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.1965.1138452
  • Filename
    1138452
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=979753