Fast full-FEM computation of COM parameters. Application to multilayered SAW structures

Author

Shaposhnikov, K. ; Kaltenbacher, Manfred ; Nicolay, P.

Author_Institution

Inst. of Mech. & Mechatron., Vienna Univ. of Technol., Vienna, Austria

fYear

2014

fDate

3-6 Sept. 2014

Firstpage

1501

Lastpage

1504

Abstract

We consider a problem of waves propagation in a multi-layered piezoelectric substrate under a periodic electrode grating utilizing a full-FEM approach for a unit cell with periodic boundary conditions. The perfectly matched layer is employed in order to truncate the computational domain. The simulations are done for the structures containing one- and two-layered piezoelectric substrates. The COM parameters obtained by the proposed model are compared with those extracted using a FEM/BEM technique.

Keywords

acoustic wave propagation; finite element analysis; structural acoustics; surface acoustic waves; BEM; COM parameters; computational domain; fast full-FEM computation; multilayered SAW structures; multilayered piezoelectric substrate; one-layered piezoelectric substrates; periodic boundary conditions; periodic electrode grating; two-layered piezoelectric substrates; wave propagation; Boundary conditions; Computational modeling; Electrodes; Finite element analysis; Mathematical model; Substrates; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2014 IEEE International

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.2014.0371

Filename

6932184