• DocumentCode
    1121136
  • Title

    A series array of DC SQUIDs

  • Author

    Welty, Richard P. ; Martinis, John M.

  • Author_Institution
    Dept. of Electr. Eng., Colorado Univ., Boulder, CO, USA
  • Volume
    27
  • Issue
    2
  • fYear
    1991
  • fDate
    3/1/1991 12:00:00 AM
  • Firstpage
    2924
  • Lastpage
    2926
  • Abstract
    A series array of 100 DC SQUIDs has been fabricated using trilayer Nb-AlOx-Nb junctions. The SQUIDs are modulated with a common flux bias line and produce an output voltage swing of several millivolts across the array. The large output voltage will allow direct connection to room temperature electronics without the transformer coupling and resulting frequency limitations commonly associated with DC SQUID amplifiers. A bandwidth of DC to at least 175 MHz for a 100-SQUID array has been measured. The series array will be used as the output stage for a multistage integrated SQUID amplifier
  • Keywords
    SQUIDs; aluminium compounds; amplifiers; niobium; superconducting integrated circuits; 175 MHz; direct connection; multistage integrated SQUID amplifier; output stage; room temperature electronics; series array; trilayer Nb-AlOx-Nb junctions; with a common flux bias line; Bandwidth; Frequency; Hysteresis; Impedance matching; Preamplifiers; Radiofrequency amplifiers; Resonance; SQUIDs; Temperature sensors; Voltage;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.133821
  • Filename
    133821
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1121136