Calculation of electromagnetic wave scattering by a small impedance particle of an arbitrary shape
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Abstract
Scattering of electromagnetic (EM) waves by small (ka ≪ 1) impedance particle D of an arbitrary shape, embedded in a homogeneous medium, is studied. Analytic, closed form, formula for the scattered field is derived. The scattered field is of the order O(a[superscript 2 − κ]), where κ ∈ [ 0,1) is a number. This field is much larger than in the case of Rayleigh-type scattering. The numerical results demonstrate a wide range of applicability of the analytic formula for the scattered field. Comparison with Mie-type solution is carried out for various boundary impedances and radii of the particle.
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Electromagnetic waves, Wave scattering by small body, Boundary impedance, Computational testing
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