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By applying Loop-Star decomposition of basis functions to form orthogonal transformation matrices, an efficient method for the analysis of electromagnetic scattering from three-dimensional dielectric and lossy objects, especially with high-contrast parameters to the background media, has been presented in this letter. The analysis of the diagonal blocks of the impedance matrix shows that the vector...
Electromagnetic scattering by three-dimensional complex perfect electrically conducting (PEC) objects buried under ground is investigated in this paper. The air-soil composite is approximated by a half-space model, where the half-space Green's function is adopted in the formulation of the electric field integral equation (EFIE). The simulation efficiency is improved from the following two aspects:...
In this paper, the IE-FFT has been successfully implemented with the curvilinear basis function to solve scattering problems. The IE-FFT is used to speed up the matrix-vector multiplication. The CPU time per iteration is O(N1.5log(N)) and the memory requirement is O(N1.2). The MN preconditioner has been used to improve the convergence of the CG solver and the good performance has been shown. The speed...
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