High Gain On-Chip Hemispherical Dielectric Resonator Antenna for 60 GHz Applications

This paper explores how varying the structure of an on-chip 60 GHz dielectric resonator antenna (DRA) affects radiation characteristics such as gain, bandwidth and efficiency. Three configurations have been considered a standalone antenna, antenna with a single dielectric superstrate, and antenna with a dielectric superstrate as well as a parasitic substrate. A considerably high broadside gain of 12.4 dBi been achieved when the superstrate and parasitic substrate (SPS) are utilized. This has been achieved in conjunction with a 7.2% impedance bandwidth and a radiation efficiency of 81.6 %. All optimizations have been done using CST and cross-validated using HFSS.