DocumentCode :
393214
Title :
Finite-difference time-domain techniques for SAW device analysis
Author :
Smith, Peter M. ; Ren, Wei
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Volume :
1
fYear :
2002
fDate :
8-11 Oct. 2002
Firstpage :
325
Abstract :
In this paper, we show how the finite-difference time-domain method can be applied to the analysis of acoustic wave propagation through piezoelectric substrates. We discuss the need to impose the quasi-static approximation in order to satisfy the Courant time-sampling stability criterion and show how this approximation can be incorporated into the solution. We describe the problems that occur at the edges of the computational space and show that absorbing boundary conditions are needed to reduce spurious reflections. A graphical visualization of the acoustic wave propagation is given.
Keywords :
acoustic wave propagation; finite difference time-domain analysis; surface acoustic wave devices; Courant time-sampling stability criterion; SAW device analysis; acoustic wave propagation; finite-difference time-domain techniques; piezoelectric substrates; quasi-static approximation; Acoustic propagation; Acoustic waves; Boundary conditions; Electromagnetic propagation; Equations; Finite difference methods; Magnetic field induced strain; Stability criteria; Surface acoustic wave devices; Time domain analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
ISSN :
1051-0117
Print_ISBN :
0-7803-7582-3
Type :
conf
DOI :
10.1109/ULTSYM.2002.1193412
Filename :
1193412
Link To Document :
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