• DocumentCode
    872724
  • Title

    Extended new-type SAW-resonator-coupled filters used in duplexer for Japanese cellular radio

  • Author

    Hikita, Masayuki ; Tabuchi, T. ; Shibagaki, N. ; Akagi, T.

  • Author_Institution
    Central Res. Lab., Hitachi Ltd., Tokyo, Japan
  • Volume
    28
  • Issue
    22
  • fYear
    1992
  • Firstpage
    2057
  • Lastpage
    2059
  • Abstract
    Cellular mobile radio operates in full duplex mode, e.g. simultaneously transmits and receives radio frequency signals. A duplexer is constructed with a transmitter final stage filter (T1) and a receiver top filter (R1). New SAW filters using an extended SAW-resonator-coupled structure have been developed for Japanese cellular radio. A low loss of 1.6 dB for T1 and a high rejection level of 50 dB for R1 have been achieved.
  • Keywords
    cellular radio; crystal resonators; radio equipment; surface acoustic wave filters; 1.6 dB; Japanese cellular radio; SAW-resonator-coupled filters; duplexer; full duplex mode; high rejection level; low loss; receiver top filter; transmitter final stage filter;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19921318
  • Filename
    204578
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=872724