Method of discrete singularities in the accurate modeling of a reflector beam waveguide

We study the E and H-polarized beam wave guidance and scattering by finite-size reflectors modeling quasioptical beam waveguides. The incident complex-source-point (CSP) field simulates a beam generated by a small-horn aperture. Numerical solution is obtained from the coupled singular integral equations (SIEs) discretized by using new quadrature formulas of interpolation type.