Title :
P5E-8 The Method of Reverberation-Ray Matrix - A New Matrix Analysis of Waves in Piezoelectric Laminates
Author :
Chen, W.Q. ; Guo, Y.Q.
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
With the development of SAW or BAW devices operating in the range of GHz, most available methods become inappropriate, either due to numerical instability or low efficiency. The method of reverberation-ray matrix (MRRM), which was proposed just recently for layered media, is extended here to study wave propagation in arbitrarily anisotropic piezoelectric laminates. Extensions include the establishment of a unified mathematical basis and the construction of numerically stable formulations. Numerical results are first obtained for wave propagation in laminated anisotropic plates and good agreement is obtained with existing study. Then the effect of material inhomogeneity on the behavior of an FGM-TFBAR is studied.
Keywords :
anisotropic media; bulk acoustic wave devices; functionally graded materials; inhomogeneous media; laminates; matrix algebra; piezoelectric materials; surface acoustic wave devices; BAW devices; FGM-TFBAR; SAW devices; arbitrarily anisotropic piezoelectric laminates; functionally graded material; layered media; material inhomogeneity effect; matrix analysis; reverberation ray matrix method; thin-film bulk acoustic resonator; wave propagation; Acoustic materials; Anisotropic magnetoresistance; Bulk acoustic wave devices; Equations; Laminates; Piezoelectric devices; Piezoelectric materials; Stress; Surface acoustic waves; Vectors;
Conference_Titel :
Ultrasonics Symposium, 2007. IEEE
Conference_Location :
New York, NY
Print_ISBN :
978-1-4244-1384-3
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2007.580
