Circular Polarized 3D-Printed Enclosed Twist Dielectric Resonator Antenna

This article presents a circular polarized enclosed twist dielectric resonator antenna (DRA) manufactured using 3D-printing, operating at 5.8 GHz. The circular polarization is obtained by twisting the top a rectangular DRA 60 degrees with respect to its base, while the sense of the polarization is given by the turning sense of the twist. The DRA includes a cubic dielectric enclosure to give mechanical stability to the structure. Simulations results shows that the antenna have a gain of around 6.7 dB, and an axial ratio below 3 dB at the operational frequency.