• DocumentCode
    1520523
  • Title

    Measurement of BAW radiation from low-loss LSAW resonators

  • Author

    Knuuttila, J.V. ; Saarinen, J. ; Hartmann, C.S. ; Plessky, V.P. ; Salomaa, M.M.

  • Author_Institution
    Mater. Phys. Lab., Helsinki Univ. of Technol., Espoo, Finland
  • Volume
    37
  • Issue
    16
  • fYear
    2001
  • fDate
    8/2/2001 12:00:00 AM
  • Firstpage
    1055
  • Lastpage
    1056
  • Abstract
    The first direct experimental observation of bulk-acoustic wave radiation from a leaky surface-acoustic wave transducer, measured arriving at the backside of the piezoceramic substrate, is reported. A scanning laser-interferometric probe is used to map the spatial distribution of the bulk-wave radiation patterns on the substrate bottom. The different energy-flow angles into the substrate are obtained as functions of frequency and used to identify the corresponding bulk-wave modes arriving at the substrate bottom
  • Keywords
    acoustic microwave devices; light interferometry; surface acoustic wave resonators; surface acoustic wave transducers; ultrasonic waves; 906 MHz; 934 MHz; BAW radiation; LiTaO3; LiTaO3 substrate; bulk-acoustic wave radiation; bulk-wave modes; bulk-wave radiation pattern spatial distribution; energy-flow angles; leaky surface-acoustic wave transducer; low-loss LSAW resonators; piezoceramic substrate backside; scanning laser-interferometric probe;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20010703
  • Filename
    941830
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1520523