Simulating of electromagnetic scattering by a perfectlyconducting spherical segmen

We use the variant of auxiliary sources method for solution the problem of electromagnetic scattering by a perfectly conducting spherical segment in resonance frequency domain. The gist of the used method is the following. The unknown scattered field in outer medium is represented as a sum of tangentially oriented auxiliary electric dipoles placed on an auxiliary surface introduced inside the spherical segment. The auxiliary surface is selected in the form of a spherical segment too. To find the unknown dipole moments of auxiliary dipoles we use the boundary conditions onthe surface of spherical segment which are satisfied according to the collocation method. Based on the method described above we developed a computer code for calculating the scattered-field components. The capabilities of the code is briefly described. We present some results of numerical calculations aimed at analyzing the influence of radius and altitude of spherical segment on the bistatic scattering cross-sections.

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