Title :
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
fDate :
10/1/2001 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
