• DocumentCode
    2908818
  • Title

    Miniaturized SAW filter structure using unidirectional quadrature IDT couplers

  • Author

    Shiba, Takashi ; Ide, Mayumi ; Fujita, Yuji

  • Author_Institution
    Hitachi Media Electron. Ltd., Yokohama, Japan
  • Volume
    2
  • fYear
    2003
  • fDate
    5-8 Oct. 2003
  • Firstpage
    2093
  • Abstract
    A new single track structure for this unidirectional quadrature IDT coupler has been proposed to reduce a device size. Advantages of the device size and bandwidth for this structure are verified by the calculations and the experiments. The double mode IDTs structure on X-112°Y LiTaO3 and 190 MHz center frequency are chosen for the experiment.
  • Keywords
    interdigital transducers; lithium compounds; surface acoustic wave couplers; surface acoustic wave filters; surface acoustic wave transducers; 190 MHz; LiTaO3; SAW filter structure; interdigital transducer; quadrature IDT couplers; unidirectional coupler; Bandwidth; Couplers; Electrodes; Equations; Equivalent circuits; Gratings; Phase shifters; SAW filters; Surface acoustic waves; Transducers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics, 2003 IEEE Symposium on
  • Print_ISBN
    0-7803-7922-5
  • Type

    conf

  • DOI
    10.1109/ULTSYM.2003.1293332
  • Filename
    1293332
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2908818