Dyadic Green´s functions for SAW and leaky wave devices

Author

Liu, W. ; Smith, P.M.

Volume

1

fYear

1997

fDate

5-8 Oct 1997

Firstpage

93

Abstract

The effective permittivity is widely used to compute the Green´s function for SAW and leaky wave devices. In general, the effect of mass loading due to surface electrodes is ignored, and a single Green´s function is obtained. In this paper, we examine a method, based on previous work by Adler and Peach, in which additional Green´s function components describe the effects of T₁₃, T₂₃ and T ₃₃ stresses and the electrical displacement D on each of the u₁, u₂, u₃ displacements and on the electrical potential φ. The sixteen-element Green´s functions for representative SAW (ST-X quartz) and leaky wave (64° lithium niobate) substrates are presented

Keywords

Green´s function methods; lithium compounds; permittivity; quartz; surface acoustic wave devices; Dyadic Greens functions; Greens function; LiNbO₃; SAW devices; ST-X quartz; SiO₂; effective permittivity; electrical displacement; electrical potential; leaky wave devices; lithium niobate; mass loading; stresses; surface electrodes; Acoustic transducers; Acoustic waves; Electric potential; Electrodes; Green´s function methods; Lithium niobate; Maxwell equations; Permittivity; Stress; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE

Conference_Location

Toronto, Ont.

ISSN

1051-0117

Print_ISBN

0-7803-4153-8

Type

conf

DOI

10.1109/ULTSYM.1997.662987

Filename

662987