On-Chip Micromachined Dielectric Resonator Antennas Loaded with Parasitic Circular/Crescent Patch for mm-Wave Applications

In this paper, two designs of micromachined dielectric resonator antennas operating at 60 GHz are presented. The antennas are fabricated using a single silicon wafer in which the dielectric resonator is located at one side of the wafer while the feeding network is located on the other side. The feeding lines are terminated by magnetic dipole which excite the dielectric resonator and causes its radiation. In order to enhance the bandwidth of the antenna, the dielectric resonator is loaded with circular/crescent patch antenna. Both designs are characterized by their fabrication simplicity, and high radiation performance. Additionally, the proposed antennas have wide impedance bandwidth reaching more than 10% (21%) of the central frequency for the circular/crescent patch loaded dielectric resonator antennas.