Rayleigh waves and leaky SAWs in periodic systems of electrodes: periodic Green functions analysis

Author

Plessky, Victor P. ; Thorvaldsson, T.

Author_Institution

ASCOM Microsyst. SA, Bevaix, Switzerland

Volume

28

Issue

14

fYear

1992

fDate

7/2/1992 12:00:00 AM

Firstpage

1317

Lastpage

1319

Abstract

A new method using periodic Green functions is developed and used to calculate dispersion curves and attenuation coefficients for Rayleigh waves and for leaky waves propagating in periodic systems of thin electrodes on piezoelectric substrates. Such basic parameters as stopband width, centre frequency of the stopband, attenuation in the stopband and resulting bulk-wave scattering are found for Rayleigh waves in YZ-LiNbO₃ and leaky waves on 36 degrees YX-LiTaO₃ substrate with shorted or open electrodes.

Keywords

Green´s function methods; Rayleigh waves; piezoelectric devices; surface acoustic wave devices; surface acoustic waves; ultrasonic absorption; ultrasonic dispersion; ultrasonic propagation; ultrasonic scattering; 36 degrees YX-LiTaO₃ substrate; LiNbO₃; LiTaO₃; Rayleigh waves; US waves; YZ-LiNbO₃; attenuation coefficients; bulk-wave scattering; centre frequency; dispersion curves; electrodes; leaky SAWs; leaky waves; periodic Green functions analysis; periodic systems; piezoelectric substrates; stopband width; surface acoustic waves;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19920837

Filename

149380