Magnetic line source diffraction by a conductive half‐plane in an anisotropic plasma

Abstract

An integral theory that is associated with the scattered fields is considered for the solution of H-polarized line source diffraction by a conductive half-plane, which is surrounded by an anisotropic plasma. As the anisotropy does not affect an E-polarized incident wave, only one polarization case is considered. The cold plasma medium is characterized by the dielectric tensor. The constant external magnetic field producing the anisotropy in a cold plasma is applied parallel to the edge of the half-plane. The total, scattered, and diffracted waves are derived in terms of the Fresnel functions. Therefore, finite magnitude values at the transition boundaries are obtained. The wave behaviours are investigated numerically for different quantities of the medium.

Diffraction of waves by a planar junction of impedance and perfect electromagnetic conductor half-planes

“…where Z0 is the intrinsic impedance of the free space and Γ is the reflection coefficient of impedance surface (Basdemir 2021;Senior and Volakis 1995). The unknown components of reflected field intensities can be derived from the boundary conditions given in Eqs.…”

General approach to the line source electromagnetic scattering by a circular strip: Both E‐ and H‐polarisation cases

“…However, all the studies are conducted by considering the plane wave as an incident wave. In [14][15][16][17][18], the line source as an incident wave was studied in electromagnetic diffraction theory. In these problems, in general, surfaces are planar surfaces and boundary conditions are different from Dirichlet and Neumann boundary conditions.…”

“…In the literature, a line source as the incident wave is highly utilised because such an incident wave is more realistic than the plane waves [14][15][16][17][18]. Furthermore, the flexibility of locating the line source leads to having the ability to verify the solution by comparing the same problem with the plane wave and the incident wave.…”

Diffraction of EM-wave by a slit of finite width with Dirichlet conditions in cold plasma

“…In our recently published article, we studied the diffraction of electromagnetic wave by a finite symmetric plate under cold plasma, assuming the Dirichlet conditions [28]. Afterwards, Husnu Deniz Basdemir [29] proposed a model to investigate the magnetic line source diffraction by a conductive half-plane in an anisotropic plasma.…”