• DocumentCode
    1362919
  • Title

    Compact UWB bandpass filter with tunable notch band based on folded SIR

  • Author

    Wei, F. ; Chen, Luo-nan ; Shi, Xiao-Wei ; Liu, B.

  • Author_Institution
    Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China
  • Volume
    47
  • Issue
    22
  • fYear
    2011
  • Firstpage
    1229
  • Lastpage
    1230
  • Abstract
    An ultra-wideband (UWB) bandpass filter (BPF) with an electronically tunable notch band based on a folded stepped impedance resonator (SIR) is investigated. The proposed UWB BPF comprises four folded shunt quarter-wavelength short-circuited stubs, one SIR with a metallised via hole to ground and a varactor diode with DC bias. The SIR is studied and employed to generate one desired notched band. The predicted results are compared with measured data and good agreement is reported.
  • Keywords
    band-pass filters; resonator filters; ultra wideband technology; DC bias; UWB bandpass filter; folded stepped impedance resonator; shunt quarter-wavelength short-circuited stubs; tunable notch band; varactor diode;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2011.2243
  • Filename
    6062008
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1362919