Singularity Subtraction for Nearly Singular Integrals on Curvilinear Triangular Elements

被引：7
|
作者：
Chen, Kun [1 ]
Song, Jiming [1 ]
机构：
[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷
基金：
美国国家科学基金会;
关键词：
Nearly singular integrals; singularity cancellation; singularity subtraction; NUMERICAL EVALUATION; TRANSFORMATION;
D O I：
10.1109/LAWP.2015.2411224
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：
This letter proposes a general singularity subtraction scheme to handle nearly singular 2-D integrals on curved triangular elements arising in high order method of moments (MoM) solution to surface integral equations. The approach works for kernels with various orders of singularity, and has very fast convergence. Comparisons are made between the proposed approach and the singularity cancellation schemes.
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页码：1435 / 1438
页数：4
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