• DocumentCode
    2968820
  • Title

    Low-Loss, Narrow-Band SAW Filters on Leaky Substrates

  • Author

    Meltaus, Johanna ; Holmgren, Olli ; Kokkonen, Kimmo ; Hong, Seong Su ; Plessky, Victor P.

  • Author_Institution
    Helsinki Univ. of Technol., Espoo
  • fYear
    2007
  • fDate
    3-8 June 2007
  • Firstpage
    869
  • Lastpage
    872
  • Abstract
    Surface acoustic wave filters operating at 1.6 GHz (GPS range) on 42deg-LiTaO3 are presented. The design is based on strong localized acoustical resonances appearing in gaps between long interdigital transducers. Realized low-loss filter has a fractional bandwidth of ~2% with a low insertion loss (~1 dB in the passband) and high rejection levels. We present also a switchable variant with response corresponding to that of two filter tracks connected electrically in series.
  • Keywords
    UHF filters; band-pass filters; lithium compounds; surface acoustic wave filters; LiTaO3; band-pass filters; frequency 1.6 GHz; interdigital transducers; leaky substrates; localized acoustical resonances; narrowband SAW filters; surface acoustic wave filters; Acoustic transducers; Acoustic waves; Band pass filters; Bandwidth; Global Positioning System; Insertion loss; Narrowband; Resonance; SAW filters; Surface acoustic waves; Surface acoustic waves; bandpass filters; surface acoustic wave filters;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Symposium, 2007. IEEE/MTT-S International
  • Conference_Location
    Honolulu, HI
  • ISSN
    0149-645X
  • Print_ISBN
    1-4244-0688-9
  • Electronic_ISBN
    0149-645X
  • Type

    conf

  • DOI
    10.1109/MWSYM.2007.380117
  • Filename
    4263959
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2968820