Finite element analysis of electromagnetic scattering from a cavity

被引：35
|
作者：
Van, T [1 ]
Wood, AW [1 ]
机构：
[1] USAF, Inst Technol, AFIT ENC, Wright Patterson AFB, OH 45433 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2003年 / 51卷 / 01期
关键词：
Dirichlet-Neumann map; finite element method; 2-D cavity;
D O I：
10.1109/TAP.2003.808517
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a finite element method (FEM) is implemented to compute the radar cross section of a two-dimensional (2-D) cavity embedded in an infinite ground plane. The method is based on the variational formulation. which uses the Fourier transform to couple the fields outside the cavity and those inside the cavity; hence, the scattering problem can be reduced to a bounded domain. The convergence of the discrete finite element problem is analyzed. Numerical results are presented and compared with those obtained by the standard finite element-Green function method and by the 2-D integral equation method.
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页码：130 / 137
页数：8
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