A high-gain planar dual reflector antenna

A high-gain planar antenna model is proposed in this article. The dual reflector function is attained by using metalized via-holes as the reflector with the shape of hyperbola and parabola. The antenna is fed with the, H-horn of SIW. Simulation in CST shows good impedance matching realized from 32.7 to 37.6 GHz with the maximum gain over 16 dBi throughout the entire band. This antenna can be widely used in millimeter radar or communication system.