A Millimeter-Wave Six-Port Junction Based on Ridge Gap Waveguide

The current paper presents a six-port low-loss waveguide coupler based on ridge gap structure with potential application in various mmWave wireless systems. challenges the fabrication faced frequencies can be overcome by using technology. excitation of presented junction is done standard WR-28 flanges at bottom. performance proposed confirmed and measurement. measured results show that operates 30 GHz 15% bandwidth return loss both input ports isolation level better than 15 dB dB, respectively. findings are valuable for design development junctions use high-frequency applications.