A Green´s function approach to the reflection behavior of SAW in layered structures

Author

Weihnacht, M.

Author_Institution

Inst. fuer Festkorperphys., Werkstofforschung, Dresden, Germany

Volume

40

Issue

1

fYear

1993

Firstpage

72

Lastpage

74

Abstract

A Green´s function method is used to derive expressions for the mechanical part of complex SAW reflection coefficients for layered structures of any material symmetry with transverse perturbations of arbitrary shape and material symmetry. The computed data are in qualitative agreement with published results that have been derived using the variational principle or the perturbation theory. Deviations arise from quite different situations concerning the point of observing the reflected wave.<>

Keywords

Green´s function methods; surface acoustic wave devices; Green´s function method; arbitrary shape; arrays of perturbations; complex SAW reflection coefficients; computed data; layered structures; material symmetry; mechanical part; perturbation theory; reflection behavior; transverse perturbations; variational principle; Boundary conditions; Green´s function methods; Partial differential equations; Reflection; Sandwich structures; Shape; Surface acoustic waves; Tensile stress; Transistors; Zinc oxide;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.185002

Filename

185002