Analysis of a post with arbitrary cross-section and height in a rectangular waveguide

An analysis of a conducting post with arbitrary cross-section and height in a rectangular waveguide is given. The problem is solved by the method of moments in two ways. The first way is to solve the electric field integral equation (EFIE) for a thin post, for the current distribution along the post. The second way is to solve the magnetic field integral equation (MFIE) for a thick post. The equivalent circuits are evaluated, and the computed results show good agreement with experimental ones given by Marcuvitz [1].