Polarization-Agile MIMO Antenna Design for Next-Generation mm-Wave Joint Communication and Sensing Applications

A printed cross-polarized dipole antenna, fed by a balun and placed inside a cylindrical cavity-like fixture, integrated with a dielectric lens is proposed in this work for joint communication and sensing (JC&S) applications. The proposed antenna may switch between horizontal, vertical, and circular polarizations, making it suitable for both communication and radar sensing. The design process and simulation results are presented, showing its potential for use in millimeter-wave and massive multiple-input multiple-output (MIMO) systems that combine communication and sensing.