Em Scattering from a semi-circular or elliptical channel in a ground plane loaded with a lossy dielectric material-tm case

الملخص EN

Analytic solution to the problem of scattering of a plane electromagnetic wave by a lossy dielectric cylinder loading semi – circular or elliptical channel is investigated.

The incident, scattered and transmitted fields in every region are expressed in terms of complex Mathieu functions.

Applying the boundary conditions along with the partial orthogonality properties of angular Mathieu functions, the unknown scattered and transmitted field coefficients are obtained and written in matrix form.

The presented numerical results show that presence of a lossy dielectric material changes significantly the echo patterns width.