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Electromagnetic Analysis for Conductive Media Based on Volume Integral Equations
Jie Zhang, Peng Cheng Wang,Jian Zhang,Mei Song Tong
College of Electronics and Information Engineering, Tongji University, Shanghai 201804
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Funding: The Specialized Research Fund for the Doctoral Program of Higher Education of China(No.Project No. 20120072110044)
Opened online:22 April 2014
Accepted by: none
Citation: Jie Zhang, Peng Cheng Wang,Jian Zhang.Electromagnetic Analysis for Conductive Media Based on Volume Integral Equations[OL]. [22 April 2014] http://en.paper.edu.cn/en_releasepaper/content/4593349
 
 
Accurate electromagnetic (EM) analysis for conductive media requires to consider the finite conductivity of the media. Although the problems can be formulated by surface integral equations (SIEs) with an approximate surface impedance, we treat the conductive media as penetrable objects and use volume integral equations (VIEs) to exactly describe their EM features. The VIEs are solved by a point-matching scheme which does not rely on any basis and testing functions and allows the use of nonconforming meshes. Since the VIEs are well-conditioned in general and the integral kernels are free of material parameters, the scheme is flexible to accommodate a wide range of skin depth. Moreover, when the skin depth is small, we can only discretize the skin domain with a current distribution to reduce the cost. Typical numerical examples are presented to illustrate the scheme and its effectiveness has been validated.
Keywords:Electromagnetic analysis, conductive media, volume integral equations, point-matching method.
 
 
 

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