FULL MULTIMODAL ANALYSIS OF AN OPEN RECTANGULAR GROOVE WAVE-GUIDE

In this paper, a full multimodal analysis of an open rectangular-shape d groove waveguide is presented for both TE and TM modes, The method o f solution involves the formulation of the problem in terms of an inte gral-equation representation to which a Galerkin approximation, which incorporates the anticipated singularities at the edges of the guide, is then applied, The method proves to be extremely accurate and numeri cally efficient to compute, and results are presented for both the low er and higher order modes.