• DocumentCode
    1115683
  • Title

    Liquid-crystal varactors with fast switching times for microwave applications

  • Author

    Goelden, F. ; Gaebler, A. ; Mueller, S. ; Lapanik, A. ; Haase, W. ; Jakoby, R.

  • Author_Institution
    Darmstadt Univ. of Technol., Darmstadt
  • Volume
    44
  • Issue
    7
  • fYear
    2008
  • Firstpage
    480
  • Lastpage
    481
  • Abstract
    A varactor using liquid crystal (LC) as tunable dielectric is presented. The two devices described feature LC layer thicknesses of 5 and 1 mum, respectively. A more advanced fabrication scheme is used, which incorporates the use of fused silica as the LC enclosing substrate. The devices exhibit tunabilities of at least 18% and quality factors of at least 40 at 1 GHz. The switching times toff are as low as 4 ms.
  • Keywords
    UHF diodes; microwave diodes; varactors; dielectric tuning; frequency 1 GHz; liquid-crystal varactors; microwave applications;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20080161
  • Filename
    4479555
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1115683