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Efficient analysis of electromagnetic scattering from three-dimensional, perfect electrically conducting, multiscale structures in a half space is conducted in this paper. The half-space dyadic Green's function is adopted as the kernel of the electric field integral equation so that the unknowns are only associated with the surface of the scatterers. A recently developed Calderon preconditioner is...
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:...
The electromagnetic scattering from 3-D perfectly electrically conducting (PEC) objects straddling the interface of a half-space is analyzed in this letter. The adaptive cross approximation (ACA) algorithm is adopted to enhance the computational efficiency. As the object is naturally separated into two parts by the interface of the half-space, two different mesh densities are required due to the contrast...
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