Abstract
Electromagnetic scattering from coated nihility circular cylinders, illuminated by E‐polarized plane wave, is investigated using an iterative procedure. Cylinders are infinite in length. The boundary conditions are applied on the surface of each cylinder in an iterative procedure in order to solve for the field expansion coefficients. The effect of different types of the coating layers including double positive (DPS) and double negative (DNG) on the alteration of the forward and backward scattering has been observed. Specially, the effect of dispersive and dissipative DNG coating layer has been focused. Numerical verifications are presented to prove the validity of this formulation by comparison with the published literature.
Highlights
Scattering from multiple cylinders in free space has been studied by many researchers 1– 14
Ragheb and Hamid 4 studied the scattering of plane waves by N circular cylinders
The scattered field for two plane waves incident on a circular cylinder covered by a dielectric material was investigated by Mushref 26
Summary
Scattering from multiple cylinders in free space has been studied by many researchers 1– 14. Ragheb and Hamid 4 studied the scattering of plane waves by N circular cylinders. A rigorous solution had been introduced to solve the scattering problem from an array of dielectric or conductor cylinders for a plane wave excitation of normal incidence 6. Yin et al 10, studied the scattering of electromagnetic waves by an array of circular bianisotropic cylinders in the case of normal incidence. Shen and Li studied electromagnetic scattering by a conducting cylinder coated with materials having negative permittivity and permeability known as double-negative DNG material. The scattered field for two plane waves incident on a circular cylinder covered by a dielectric material was investigated by Mushref. An iterative solution for the scattered field from M parallel coated nihility circular cylinders is derived. In order of the interaction between the cylinders, the appropriate boundary conditions are satisfied on the surface of the coating layer as well as on the surface of core cylinder
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