Efficient finite-element solution for the problem of scattering from multiple cavities

Author

Alavikia, Babak ; Ramahi, Omar M.

Author_Institution

Electr. & Comput. Eng. Dept., Waterloo Univ., Waterloo, ON

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

This study utilizes the finite element method to solve the problem of scattering from multiple cavities with arbitrary shape and inhomogeneous media. The surface integral equation using Greenpsilas function is used to truncate the mesh region, resulting in significant increase in solution efficiency. The application of this method can be extended to the problem of several grooves with various shapes and to the problem of scattering from multiple holes in infinite metallic screens.

Keywords

Green´s function methods; electromagnetic wave scattering; finite element analysis; inhomogeneous media; integral equations; waveguide theory; Green´s function; finite-element solution; infinite metallic screens; inhomogeneous media; multiple cavities; scattering problem; surface integral equation; Boundary conditions; Dielectric losses; Finite element methods; Green´s function methods; Integral equations; Moment methods; Nonhomogeneous media; Radar scattering; Resonance; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619428

Filename

4619428