The characteristics of dielectric backed planar conducting layers of arbitrarily shaped in a rectangular waveguide are calculated by means of coupled integral equation technique (CIET) which accurately takes higher order mode interactions. Equivalent structures for the accurate analysis whole structure are introduced in which magnetic surface currents are identified as the unknowns at the apert...

This paper presents a cavity-backed antenna array in substrate integrated waveguide (SIW) technology the millimeter-wave frequency band. The proposed design uses double slots as radiating elements instead of conventional single slots. allow better control operating bands antenna. performance antennas with and is compared to assess enhanced behavior As proof concept, 2 × designed, manufactured, ...

This article presents the methodology to design a single-fed circularly-polarized antenna with low front-to-back ratio (FBR). A circular-patch (CPatch) has been incorporated within rectangular-cavity, made of, substrate integrated waveguide (SIW). The size of CPatch and SIW cavity chosen appropriately, in manner, that both resonators dominant mode coincide. arrangement adopted realize basic rad...