A 2-layer 45° -Slant-Polarised Phased Array Antenna with Baffles Based on Gap Waveguide Technology for mmWave 5G Systems

A 45° slant-polarised gap waveguide phased array antenna designed with focus on mmWave 5G is presented. Baffles are used to reduce grating lobes. The total efficiency of the array is greater than −0.7 dB, and the average broadside gain is 24.2 dBi in the band from 26.5−29.5 GHz.