Evaluation of Singular Potential Integrals with Linear Source Distribution

摘要：

　　In the method of moments(MoM)with the Rao-Wilton-Glisson(RWG)basis function for solving electromagnetic(EM)surface integral equations(SIEs),one needs to evaluate singular potential integrals with linear source distribution.The weakly singular integrals could be evaluated with the well-known Duffys method,but it requires a two-fold numerical integration.In this work,we develop a novel approach to handle the singular potential integrals by using a local polar coordinate system.The approach can automatically cancel the singularity and reduce the integrals to a one-fold numerical integration by deriving a closed-form expression for the integral over the polar coordinate.Numerical example is presented to demonstrate the effectiveness of the approach.

作者: W.T.Sheng Z.Y.Zhu G.C.Wan M.S.Tong

作者单位: Department of Electronic Science and Technology,Tongji University 4800 Caoan Road,Shanghai 201804,China

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)

会议地点: 台北

会议语种:英文

页码: 203-207

在线出版日期: 2013-03-01（万方平台首次上网日期，不代表论文的发表时间）