• DocumentCode
    1762363
  • Title

    Tri-band superconducting bandpass filter with high selectivity

  • Author

    Yong Heng ; Xubo Guo ; Bisong Cao ; Bin Wei ; Xiaoping Zhang ; Wei Chen ; Zhijun Ying ; Xiaoke Song

  • Author_Institution
    Dept. of Phys., Tsinghua Univ., Beijing, China
  • Volume
    49
  • Issue
    10
  • fYear
    2013
  • fDate
    May 9 2013
  • Firstpage
    658
  • Lastpage
    659
  • Abstract
    A tri-band superconducting filter at L-band comprising three high-pole single-band sub-filters with sharp band-edges is presented to meet the high selectivity requirement. Matching junctions with high-impedance branch lines are used to connect the sub-filters and to reduce the channel interactions. MgO and LaAlO3 substrates are utilised in the design and fabrication procedure to reduce the filter size and achieve a high performance. The whole filter has a compact size of 43 × 39.1 mm, and the measured results match well with the simulations.
  • Keywords
    UHF filters; band-pass filters; superconducting filters; LaAlO3; MgO; filter size reduction; high-impedance branch lines; sharp band-edges; three high-pole single-band subfilters; triband superconducting bandpass filter;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2013.0648
  • Filename
    6528809
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1762363