• DocumentCode
    2908697
  • Title

    SAW filter based on parallel-connected CRFs with offset frequencies

  • Author

    Meltaus, J. ; Plessky, V.P. ; Gortchakov, A. ; Härmä, S. ; Salomaa, M.M.

  • Author_Institution
    Mater. Phys. Lab., Helsinki Univ. of Technol., Finland
  • Volume
    2
  • fYear
    2003
  • fDate
    5-8 Oct. 2003
  • Firstpage
    2073
  • Abstract
    We present designs for two-track devices, based on the coupled resonator filter (CRF) concept, having either two or three transducers. The tracks are connected in parallel, imposing a frequency shift between them. Examples of this approach are demonstrated in different frequency ranges, both on quartz and - for the first time - on 42°-LiTaO3. We also introduce a parallel-track design with distributed gaps. The device can also operate as a single-to-balanced (BALUN) transformer.
  • Keywords
    baluns; lithium compounds; resonator filters; silicon compounds; surface acoustic wave filters; transducers; LiTaO3; SAW filter; SiO2; balun transformer; coupled resonator filter; offset frequencies; parallel-connected CRF; parallel-track design; quartz; single-to-balanced transformer; transducer; Apertures; Bandwidth; Frequency; Insertion loss; Laboratories; Passband; Physics; Resonator filters; SAW filters; Transducers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics, 2003 IEEE Symposium on
  • Print_ISBN
    0-7803-7922-5
  • Type

    conf

  • DOI
    10.1109/ULTSYM.2003.1293327
  • Filename
    1293327
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2908697