Evaluation of reaction integrals in the Galerkin's Method of Moments

被引：0
|
作者：
Taboada, J. M. [1 ]
Solis, D. M. [2 ,3 ]
Obelleiro, F. [2 ]
机构：
[1] Univ Extremadura, E Politecn, Dept Tecnol Comp & Comunicac, Caceres 10003, Spain
[2] Univ Vigo, Dept Teoria Sinal & Comunicac, EE Telecomunicac, Vigo 36310, Spain
[3] Univ Penn, Dept Elect & Syst Engn, Philadelphia, PA 19104 USA
来源：
2017 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) | 2017年
关键词：
SINGULAR POTENTIAL INTEGRALS; IMPEDANCE MATRIX-ELEMENTS; NUMERICAL EVALUATION; ELECTROMAGNETIC SCATTERING; HYPERSINGULAR INTEGRALS; EQUATION FORMULATIONS; COMPUTATION; TRIANGLE; SHAPE;
D O I：
暂无
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：
The importance of guaranteeing the triangle-wise balance in the evaluation of the 4-D reaction integral for the scalar potential is evaluated in this paper. We will show that the div-conforming character of the RWG basis functions must be numerically preserved to machine precision. This is done naturally when the integration is performed by triangle pairs. However, a very small imbalance (even at high accuracy) in the evaluation of this integral for different basis and/or testing functions supported by a given triangle results in the accumulation of fictitious charges over the triangle's surface, artificially extending the frequency range over which the low-frequency breakdown should be a problem.
引用
收藏
页码：1590 / 1592
页数：3
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