Conformal absorbing boundary conditions for 3-D problems: derivation and applications

Author

Chatterjee, Arindam ; Volakis, John L.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

43

Issue

8

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

860

Lastpage

866

Abstract

Vector absorbing boundary conditions (ABCs) for doubly curved surfaces are presented, and their applicability to finite elements for scattering calculations are discussed. A performance study of these ABCs is carried out in terms of accuracy and computational requirement, and scattering patterns for several targets are included for validation purposes. It is found that accurate far-field results can be obtained by terminating the finite element mesh a fraction of a wavelength from the scattering structure

Keywords

electromagnetic wave absorption; electromagnetic wave scattering; mesh generation; 3D problems; accuracy; computational requirement; conformal absorbing boundary conditions; doubly curved surfaces; far-field results; finite element mesh; finite elements; performance study; scattering; scattering pattern; vector absorbing boundary conditions; Boundary conditions; Costs; Electromagnetic scattering; Finite element methods; Geometrical optics; Geometry; Optical scattering; Optical surface waves; Senior members; Shape;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.402206

Filename

402206