• DocumentCode
    954804
  • Title

    Crystal, ceramic, and mechanical filters in Japan

  • Author

    Onoe, Morio

  • Author_Institution
    University of Tokyo, Tokyo, Japan
  • Volume
    67
  • Issue
    1
  • fYear
    1979
  • Firstpage
    75
  • Lastpage
    102
  • Abstract
    In Japan, there has been considerable activity in the research and manufacturing of quartz crystal filters, ceramic filters and mechanical filters. This paper reviews some of these contributions. An emphasis is placed on filters actually used. First multiple-mode resonators are reviewed; this concept having had profound effects on all types of filters. Quartz-crystal filters as well as other crystal filters are discussed. Then follow reviews on ceramic and mechanical filters.
  • Keywords
    Ceramics; Circuit analysis; Circuit theory; Ferroelectric materials; Filtering theory; MOS devices; Resonator filters; Surface acoustic waves; Transfer functions; Vibration measurement;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1979.11204
  • Filename
    1455473