Ka-Band Planar Magic-T Based on E-plane Groove Gap Waveguide for Monopulse Antenna System

A planar Magic-T is proposed based on E-plane groove gap waveguide for Ka-band applications. All four ports of the Magic-T are coplanar and E-plane groove gap waveguide. The frequency bandwidth of the proposed Magic-T is about 43% covering the whole Ka-band from 26 GHz to 40GHz. The Magic-T isolation is better than 42 dB in the whole bandwidth while its insertion loss is about 0.1 dB.