• DocumentCode
    2083665
  • Title

    A New Broadband 50 OHM Coaxial- to 1 OHM Microstrip Transition for Superconducting Thin Film Devices with Low Input Impedance

  • Author

    Daginnus, M. ; Schattat, O. ; Hinken, J.H.

  • Author_Institution
    Institut fÿr Hochfrequenztechnik, Technische Universitÿt Braunschweig, P.O.Box 3329, D-3300 Braunschweig, Germany
  • Volume
    1
  • fYear
    1991
  • fDate
    9-12 Sept. 1991
  • Firstpage
    693
  • Lastpage
    698
  • Abstract
    We report on the development of a new transition from a 50 Ohm coaxial line to a 1 Ohm microstrip line. The impedance transformation is done with a three step microstrip quarter-wave-transformer, where the width of the strip and the height of the air dielectric between strip and back-electrode are changed step by step. The thin film strip is evaporated on low loss LaAlO3-substrate. The transition has a transmission loss of less than 2 dB between 16.1 and 17.9 GHz, and less than 3 dB between 15.8 and 20.0 GHz.
  • Keywords
    Coaxial components; Dielectric losses; Dielectric thin films; Impedance; Microstrip; Strips; Substrates; Superconducting microwave devices; Superconducting thin films; Yttrium barium copper oxide;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1991. 21st European
  • Conference_Location
    Stuttgart, Germany
  • Type

    conf

  • DOI
    10.1109/EUMA.1991.336382
  • Filename
    4136366
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2083665