Substrate integrated waveguide structures (SIW) using via holes with angular variance

In this work, a study of substrate integrated waveguide (SIW) structure is done which allows the integration of dielectric via holes in the substrate using the iterative method based on the concept of waves (WCIP). A novel development of the WCIP method is proposed that considerate the angular variance by using via holes with more important radius. These via holes delimit the guide, in which the modes will appear. In this study, not only the fundamental mode is considerate but three fundamental modes (0,1 et −1).