• DocumentCode
    1051253
  • Title

    Varactor-tuned active bandpass filter with low noise performance

  • Author

    Kim, B.-W. ; Chun, Y.H. ; Yun, S.W.

  • Author_Institution
    Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
  • Volume
    40
  • Issue
    15
  • fYear
    2004
  • fDate
    7/22/2004 12:00:00 AM
  • Firstpage
    945
  • Lastpage
    946
  • Abstract
    An active tunable bandpass filter based upon the negative resistance method using a microstrip combline network is presented. The negative resistance is realised using a common-drain series feedback structure. 0.4 octave tuning with significant improvement in passband performance was achieved and the noise performance was comparable with its passive counterpart.
  • Keywords
    active filters; band-pass filters; circuit noise; circuit tuning; comb filters; microstrip circuits; negative resistance circuits; varactors; active bandpass filter; common drain series feedback; coupling varactor diode; low noise performance; microstrip combline network; negative resistance method; octave tuning; passband bandwidth; varactor tuned filter;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20045109
  • Filename
    1318884
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1051253