Measurements of saw effective velocity angular-variation under metal strip gratings and their application to ASPW analysis

Osamu Hikino, Hiroaki Ikeda, Takashi Shiba, Akitsuna Yuhara

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Measurements of SAW effective velocity angular-variation under metal strip gratings, using a comb-filter method are described. A distinctive characteristic was newly observed at higher frequency; the minimum observed at propagation angle 0° of the above angular-variation of LiNbO3-128° rotYX single crystal. The minimum is originated by SAW dispersion considered to be mainly due to stored energy effect. Moreover, as an example to utilize the above measurement results for an analysis of SAW second order effects, the frequency response of a 480MHz SAW filter was calculated including SAW diffraction effect using angular spectrum of plane wave (ASPW) method. The simulation result was in good agreement with the experimental one.

Original languageEnglish
Pages (from-to)271-275
Number of pages5
JournalProceedings of the IEEE Ultrasonics Symposium
Volume1
DOIs
Publication statusPublished - 1994
Externally publishedYes
EventProceedings of the 1994 IEEE Ultrasonics Symposium. Part 1 (of 3) - Cannes, Fr
Duration: 1994 Nov 11994 Nov 4

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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