Development of Absorbing Conditions for the Analysis of Finite Dimension Elastic Wave-Guides

Author

Ballandras, Sylvain ; Gachon, Dorian ; Masson, Jérémy ; Daniau, William

Author_Institution

Inst. FEMTO-ST, Besancon

fYear

2007

fDate

May 29 2007-June 1 2007

Firstpage

729

Lastpage

732

Abstract

A perfectly matched layer approach was developed for piezoelectric problems simulated by finite element and compared with a distributed viscosity absorption method. The development is self-consistent and allows for absorbing energy at the edges of a mesh without spurious reflection due to non appropriated boundary conditions. ID and 2D validation are reported and the method is applied to analyze a finite length Lamb wave transducer and a 2D FBAR structure.

Keywords

acoustic resonators; acoustic wave absorption; acoustic waveguides; bulk acoustic wave devices; finite element analysis; piezoelectric materials; surface acoustic wave transducers; 2D FBAR structure; distributed viscosity absorption method; film bulk acoustic resonator; finite dimension elastic wave-guides; finite element analysis; finite length Lamb wave transducer; perfectly matched layer approach; piezoelectricity based problems; Acoustic reflection; Acoustic transducers; Acoustic waves; Analytical models; Boundary conditions; Film bulk acoustic resonators; Finite element methods; Perfectly matched layers; Piezoelectric transducers; Surface acoustic wave devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2007 Joint with the 21st European Frequency and Time Forum. IEEE International

Conference_Location

Geneva

ISSN

1075-6787

Print_ISBN

978-1-4244-0646-3

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2007.4319171

Filename

4319171