A surface integral equation formulation for low-frequency scattering from a composite object

被引：52
|
作者：
Chu, YH [1 ]
Chew, WC
Zhao, JS
Chen, SY
机构：
[1] Univ Illinois, Elect & Comp Engn Dept, Urbana, IL 61801 USA
[2] Univ Illinois, Elect & Comp Engn Dept, Urbana, IL 61801 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2003年 / 51卷 / 10期
关键词：
composite object; loop-star; loop-tree; low frequency; Poggio; Miller; Chang; Harrington; Wu; and Tsai formulation (PMCHWT);
D O I：
10.1109/TAP.2003.817999
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：
A surface integral equation formulation is derived for low-frequency scattering from a composite object. This formulation allows those algorithms for finding loop-tree basis on simple surfaces to be applied to the complicated interfaces of a composite object. By including the residue term in the kappa operator, the present formulation induces the interface boundary conditions automatically, and the resultant matrix equation can be solved directly without using the O(N-2) number-of-unknown-reduction scheme. Numerical results validate that the algorithm is stable even at extremely low frequencies and for closely spaced structures.
引用
收藏
页码：2837 / 2844
页数：8
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