A fast time-domain finite element-boundary integral method for electromagnetic analysis

Author

Jiao, Dan ; Lu, Mingyu ; Michielssen, Eric ; Jin, Jian-Ming

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

49

Issue

10

fYear

2001

fDate

10/1/2001 12:00:00 AM

Firstpage

1453

Lastpage

1461

Abstract

A time-domain, finite element-boundary integral (FE-BI) method is presented for analyzing electromagnetic (EM) scattering from two-dimensional (2-D) inhomogeneous objects. The scheme´s finite-element component expands transverse fields in terms of a pair of orthogonal vector basis functions and is coupled to its boundary integral component in such a way that the resultant finite element mass matrix is diagonal, and more importantly, the method delivers solutions that are free of spurious modes. The boundary integrals are computed using the multilevel plane-wave time-domain algorithm to enable the simulation of large-scale scattering phenomena. Numerical results demonstrate the capabilities and accuracy of the proposed hybrid scheme

Keywords

boundary integral equations; electromagnetic wave scattering; finite element analysis; matrix algebra; time-domain analysis; 2D inhomogeneous objects; EM scattering; diagonal finite element mass matrix; electromagnetic analysis; electromagnetic scattering; fast time-domain method; large-scale scattering phenomena; multilevel plane-wave time-domain algorithm; orthogonal vector basis functions; time-domain finite element-boundary integral; transverse fields expansion; two-dimensional inhomogeneous objects; Electromagnetic analysis; Electromagnetic scattering; Finite difference methods; Finite element methods; Frequency domain analysis; Integral equations; Maxwell equations; Time domain analysis; Transient analysis; Two dimensional displays;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.954934

Filename

954934