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http://dx.doi.org/10.5515/KJKIEES.2018.29.10.805

Modified SDIE MLFMM Method for Inhomogeneous Impedance Material Containing PEC or PMC Region  

Lee, Hyunsoo (Department of Electronic Engineering, Inha University)
Koh, Il-Suek (Department of Electronic Engineering, Inha University)
Yoo, Ji Hee (Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.10, 2018 , pp. 805-810 More about this Journal
Abstract
A coated perfect electric conductor(PEC) interface to reduce scattered fields can be efficiently modeled by using the impedance boundary condition. The self-dual integral equation(SDIE) proposed by Yan et al. may be an efficient multi-level fast multipole method (MLFMM) formulation for the impedance object. This equation can be applied to an inhomogeneous impedance material, but its accuracy can be degenerated when the material contains a PEC or perfect magnetic conductor(PMC) region. In this paper, we modify the original SDIE formulation for an inhomogeneous object containing a PEC or PMC region and numerically verify its accuracy.
Keywords
Inhomogeneous; IBC; MLFMM; Scattering;
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