Circularly polarized on chip dielectric resonator antenna at 60 GHz

This paper presents incorporating a metasurface to convert linear polarization to circular polarization at 60 GHz. The proposed antenna design, namely, a linear polarized DRA, is employed as original antennas for producing LP signals. According to simulation results, metasurface is capable of converting an LP signal produced at the original antenna into a CP signal, while improving the polarization bandwidth with gain. The proposed DR antenna exhibits a return loss bandwidth, axial ratio bandwidth, efficiency, and gain of 3.55%, 1.2 %, 95% and 8.6 dBi, respectively.