Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234198
