A Plane Wave Scattering by a LHM Anisotropic Uniaxial-coated Conducting Sphere

Abstract

On the basis of spherical vector wave functions in uniaxial anisotropic left-handed materials (LHMs) and the first, second, third and fourth spherical vector wave functions in uniaxial anisotropic LHMs satisfy the same differential equation, the electromagnetic fields in uniaxial anisotropic LHMs can be expressed as an addition of the first and second spherical vector wave functions in uniaxial anisotropic LHMs. Applying the boundary conditions of electromagnetic fields in the interface between LHMs and free space, in the surface of conducting sphere, the expansion coefficients of electromagnetic field in uniaxial anisotropic LHMs and scattering field in free space can be derived, and then the radar section cross (RCS) of a plane wave scattering by a LHMs anisotropic uniaxial-coated conducting sphere. Some numerical results are given in this paper.