Shear-horizontal surface waves in the layered structure

Author

Hanhua, Feng ; Xingjiao, Li

Author_Institution

Dept. of Solid State Electron., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

1991

fDate

8-11 Dec 1991

Firstpage

415

Abstract

After a study of the surface wave characteristics of the shear-horizontal (SH) surface waves guided by the interface of a thin layer and a semi-infinite substrate, a new existence condition for SH surface waves propagating in a layered structure is presented. The analysis shows that the SH surface wave discussed is a new type wave, because its existence condition, dispersion characteristics, and the space distribution of its displacement and electric potential are different from those of the Love-type wave. This new SH surface wave can be excited by the usual interdigital transducers at the interface, and surface acoustic wave (SAW) devices could be made without a package

Keywords

surface acoustic waves; dispersion characteristics; electric potential; existence condition; interdigital transducers; layered structure; shear horizontal surface waves; space distribution; surface acoustic wave; surface wave characteristics; Acoustic transducers; Acoustic waves; Ceramics; Electric potential; Geometry; Piezoelectric polarization; Solid state circuits; Surface acoustic wave devices; Surface acoustic waves; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/ULTSYM.1991.234198

Filename

234198