• DocumentCode
    3096065
  • Title

    Experimental and theoretical results of new unidirectional interdigital transducers using floating electrodes

  • Author

    Yamanouchi, Kazuhiko ; Odagawa, Hiroyuki ; Iwai, Ikuya

  • Author_Institution
    Tohoku Univ., Sendai, Japan
  • fYear
    2013
  • fDate
    21-25 July 2013
  • Firstpage
    745
  • Lastpage
    748
  • Abstract
    We propose the new configurations of the internal reflection type of unidirectional IDT with the high transduction using high coupling substrates of 128° YX LiNbO3 [1], 36° YX LiTaO3 [2] and SiO2/YX-LiNbO3[3] with k2=0.3 and zero Temperature Coefficient of Frequency (TCF). The theoretical and experimental results showed the good directivities. Moreover we describe weighting method for the FEUDT filters.
  • Keywords
    acoustic filters; acoustic wave reflection; electrodes; interdigital transducers; FEUDT filters; LiNbO3; LiTaO3; SiO2-LiNbO3; TCF coefficient; floating electrodes; high coupling substrates; high transduction effect; internal reflection; unidirectional IDT; unidirectional interdigital transducers; weighting method; zero temperature frequency coefficient; Couplings; Educational institutions; Electrodes; Reflection; Reflectivity; Substrates; Surface acoustic waves; FEUDT; distance weighting; low-loss wide-band filter; surface acoustic wave; zero-TCF;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium (IUS), 2013 IEEE International
  • Conference_Location
    Prague
  • ISSN
    1948-5719
  • Print_ISBN
    978-1-4673-5684-8
  • Type

    conf

  • DOI
    10.1109/ULTSYM.2013.0192
  • Filename
    6725015
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3096065