New transducer construction for wideband SAW TV IF filters

Takashi Shiba, Jun Yamada, Tatsuro Toyama

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A new construction of an interdigital transducer for a wideband SAW TV IF filter has been developed. When the filter needs wide passband and low shape-factor characteristics, the number of electrodes in the interdigital transducer has to be increased. In that case surface-wave reflection in the transducer causes large ripples in the filter characteristics. In this paper a new type dummy-electrode for suppression of this reflection is described.

Original languageEnglish
Pages (from-to)213-216
Number of pages4
JournalJapanese journal of applied physics
Volume28
Issue numberS2
DOIs
Publication statusPublished - 1989 Jan 1
Externally publishedYes

Keywords

  • Dummy electrode
  • Face-wave reflection
  • Interdigital transducer
  • SAW filter
  • Wideband frequency characteristics

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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