Radiation properties of an arbitrarily flanged parallel-plate waveguide

The radiation properties of an arbitrarily flanged parallel-plate waveguide are investigated by means of the boundary integral equations that are called guided-mode extracted integral equations. The boundary integral equations derived in this paper can be solved by the conventional boundary-element method. Numerical results are presented for a number of cases of flanged parallel-plate waveguide. Reflection coefficient, reflected and radiated powers as well as radiation patterns are numerically calculated for the incidence of transverse electric guided-mode wave.