Rigorous analysis of surface transverse waves in periodic arrays with arbitrary electrode profiles

Author

Baghai-Wadji, A.R. ; Maradudin, A.A.

Author_Institution

Inst. fur Allgem. Elektrotech. u. Elektronik, Tech. Univ. Wien, Vienna, Austria

fYear

1990

fDate

4-7 Dec 1990

Firstpage

425

Abstract

A novel method to analyze the behavior of surface transverse waves (STWs) in periodic arrays consisting of massive, metallic electrodes with arbitrary electrode profile on piezoelectric substrates with general anisotropy is presented. To include a rather wide class of problems, a piezoelectric substrate coated by an inhomogeneous layer with periodic material constitution is treated. It is found that in a period grating as the ratio d/p increases the dispersion curve acquires high-frequency branches in addition to the one already known from earlier studies of this problem

Keywords

surface acoustic wave devices; surface acoustic waves; ultrasonic dispersion; ultrasonic propagation; arbitrary electrode profiles; dispersion curve; high-frequency branches; inhomogeneous layer; metallic electrodes; period grating; periodic arrays; periodic material constitution; piezoelectric substrates; surface transverse waves; Anisotropic magnetoresistance; Boundary conditions; Constitution; Dielectric substrates; Electrodes; Frequency; Gratings; Piezoelectric materials; Surface acoustic waves; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171401

Filename

171401