Wiener-Hopf solution for the radiation from a cylindrical truncated waveguide with anisotropic boundary conditions on the walls

The Wiener-Hopf approach has been extended to the problem of the radiation by a cylindrical truncated waveguide with walls characterized by anisotropic boundary conditions on both the inner and the outer surface. When balanced hybrid mode conditions are assumed on both surfaces, two uncoupled scalar Wiener-Hopf equations are determined. The factorization of the kernel can be accomplished through a numerical integration.