DocumentCode
995223
Title
A simple closed form dispersion equation for shear types of surface waves propagating in periodic structures
Author
Plessky, Victor P.
Author_Institution
Adv. SAW Products SA, Bevaix, Switzerland
Volume
40
Issue
4
fYear
1993
fDate
7/1/1993 12:00:00 AM
Firstpage
421
Lastpage
423
Abstract
A closed-form dispersion relation is found for shear surface acoustic waves (SAWs), namely, Bleustein-Gulyaev waves (BGWs), surface transverse waves (STWs), and leaky waves, propagating in periodic structures in the frequency range corresponding to the Bragg stopband. Changes in the spatial structure of the waves mutually reflecting on the grating as well as bulk wave scattering are considered. A comparison with numerically obtained dispersion curves for leaky waves on 36-LiTaO/sub 3/ shows good agreement.<>
Keywords
acoustic dispersion; surface acoustic waves; Bleustein-Gulyaev waves; Bragg stopband; LiTaO/sub 3/; bulk wave scattering; closed form dispersion equation; leaky waves; periodic structures; shear surface acoustic waves; spatial structure; surface transverse waves; Acoustic propagation; Acoustic scattering; Acoustic waves; Dispersion; Equations; Frequency; Gratings; Periodic structures; Sawing machines; Surface acoustic waves;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/58.251293
Filename
251293
Link To Document