W-band High-Gain Magneto-Electric Dipole Antenna Array with Double-Sided Gap Waveguide Feed Network

A W-band magneto-electric (ME) dipole antenna array using a low-loss double-sided gap waveguide (DSGWG) feed network is presented with high gain and wide band performance. The ME dipole antenna element is composed of a DSGWG open slot radiating as an equivalent magnetic dipole and pairs of metallic pins working as electric dipoles. The feed network is composed of DSGWG power dividers, which could reduce transmission loss and improve antenna gain. The simulated results show that the antenna element achieves a gain over 8 dBi from 83 GHz to 115 GHz, and the gain fluctuation is below 3 dB. The 1×4 ME antenna array is also designed with a gain up to 14.8 dBi by reconfiguring ME dipole antenna elements and the feed network.