• DocumentCode
    971123
  • Title

    Parametric amplification in Josephson tunnel junction arrays at 33 GHz

  • Author

    Goodall, F. ; Bale, F. ; Rudner, S. ; Claeson, T. ; Finnegan, T.F.

  • Author_Institution
    Appleton Research Laboratory, Slough, England
  • Volume
    15
  • Issue
    1
  • fYear
    1979
  • fDate
    1/1/1979 12:00:00 AM
  • Firstpage
    458
  • Lastpage
    461
  • Abstract
    Progress on the development of a low-noise superconducting parametric amplifier operated at liquid helium temperatures and designed for practical use with a radio telescope at 33 GHz is reported. Series arrays of small Pb - Pb oxide - Pb tunnel junctions ( \\sim 20 \\mu m × 20 μm) are coupled in a microstrip configuration and the Josephson device is operated as a reflection-type amplifier in the doubly degenerate mode. Various practical considerations in using such a devise on a telescope are reviewed. In preliminary experiments, gains of greater than 13 dB have been observed near 33 GHz.
  • Keywords
    Josephson device amplifiers; Millimeter-wave amplifiers; Parametric amplifiers; Radio telescopes; Josephson junctions; Laboratories; Low-noise amplifiers; Masers; Operational amplifiers; Optical design; Radio astronomy; Superconducting devices; Telescopes; Temperature;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1979.1060278
  • Filename
    1060278
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=971123