Far-field Cancellation of Cross Polarization Based on Mirroring Subarrays of Densely Arranged Polarization-Division Multiplexing Apertures

Achieving highly directional planar array antennas with sufficient cross-polarisation discriminations (XPDs) is crucial for satellite communications based on the polarisation-division multiplexing (PDM). In this work, the authors propose a robust three-step approach that can be used to significantly enhance the XPD of such array antennas in the normal and nearby directions based on mirroring subar...