A SIMPLE CLOSED-FORM DISPERSION-EQUATION FOR SHEAR TYPES OF SURFACE-WAVES PROPAGATING IN PERIODIC STRUCTURES

Authors
Citation
Vp. Plessky, A SIMPLE CLOSED-FORM DISPERSION-EQUATION FOR SHEAR TYPES OF SURFACE-WAVES PROPAGATING IN PERIODIC STRUCTURES, IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 40(4), 1993, pp. 421-423
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic",Acoustics
ISSN journal
08853010
Volume
40
Issue
4
Year of publication
1993
Pages
421 - 423
Database
ISI
SICI code
0885-3010(1993)40:4<421:ASCDFS>2.0.ZU;2-M
Abstract
A closed form dispersion relation for shear surface acoustic wave (SAW 's) (Bleustein-Gulyaev (BGW), surface transverse waves (STW's), leaky waves) propagating in periodic structures in the frequency range corre sponding to the Bragg stopband is found. The consideration includes th e changes in spatial structure of the waves mutually reflecting on the grating as well as bulk wave scattering. A comparison with numericall y obtained dispersion curves for leaky waves on 36-LiTaO3 shows good a greement.