Design and comparison of H-plane SIW horn antenna with different flare shapes

Abstract

An H-plane Substrate Integrated Waveguide (SIW) horn antenna is designed and simulated using the Ansoft HFSS software. The shape of the flare is varied from a simple linear taper to corrugated (square corrugation and triangular corrugation) and stepped impedance transformation. The performance of the antenna with different flares is analyzed and compared for optimum results.