Plane wave scattering by a dielectric loaded slit in a thick impedance screen

Physical and Spectral Analysis of a Semi-Infinite Grounded Slab Illuminated by Plane Waves

“…We observe that the explicitness of the formulation is a great advantage with respect to an approximate solution based on infinite linear system of equations that require a multistep analysis for convergence as often reported in the WH literature [15], [17], [18], [29].…”

“…We note that the presence of Y d1 (η) in ( 26) defines an admittance relation between V + (η) and I + (η) as in a layer of thickness d terminated by a PEC boundary. However, the equation also contains an integral unknown term related to the boundary condition 2) of Section II (interface at x = 0) through the definition of f 1 (η, y) (18). For this reason, ( 26) is called an incomplete WH equation since it needs some more specifications to become an explicit representation.…”

“…In particular, we note that the WH literature on similar problems reports procedures based on Jones's like methods (see [21], [22], [23], [24], [25], [26], [27], [28]) where a system of infinite equations is solved approximately to get the solution of the modified WH problem. This method was adopted in particular in [15], [16], [17], and [18] where an ad hoc prefactorization of scalar functions is needed.…”