• DocumentCode
    975950
  • Title

    Narrow-aperture chirp transducers for SAW convolvers

  • Author

    Morgan, D.P. ; Warne, D.H. ; Selviah, David R.

  • Author_Institution
    Plessey Research (Caswell) Ltd., Allen Clark Research Centre, Towcester, UK
  • Volume
    18
  • Issue
    2
  • fYear
    1982
  • Firstpage
    80
  • Lastpage
    81
  • Abstract
    Narrow-aperture SAW beams can be generated efficiently using chirp transducers, thus avoiding the need for beam compression in convolvers. The transducers can be designed such as to compensate for phase errors due to dispersive SAW propagation. Experimental confirmation was obtained using convolvers with 120 MHz bandwidth and 16 ¿s interaction length, and a bilinearity factor of ¿65 dBm was achieved.
  • Keywords
    surface acoustic wave devices; surface acoustic waves; ultrasonic transducers; 120 MHz bandwidth; SAW convolvers; UHF; VHF; dispersive SAW propagation; narrow-aperture chirp transducers; phase error compensation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19820055
  • Filename
    4246230
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=975950