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In order to analyze EM scattering from objects within a half space fast and efficiently under the background of complex calculation of half space Green's functions, the adaptive cross approximation (ACA) has been applied, due to its nature of Green's function independence. When the object is naturally split into two parts by the interface of the half space, two different mesh densities are required...
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...
In this letter, a novel hybrid method is proposed to efficiently analyze the electromagnetic (EM) scattering from arbitrarily shaped, perfect electrically conducting (PEC) bodies that penetrate the interface of a half-space. Due to different integrands involved in the reflection- and transmission-type Green’s functions, a partition scheme is introduced where the adaptive cross approximation (ACA)...
A hybrid method of the half-space multilevel fast multipole algorithm (HS-MLFMA) and the adaptive cross approximation (ACA) algorithm is presented to determine the electromagnetic (EM) field scattered from perfectly electronically conducting (PEC) bodies straddling the interface of a half space. When both the source and observation points are located in the same side of the interface, where the observation...
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