Wide-Angle Scanning Dielectric Resonator Antennas for Millimeter-Wave Applications

Phased array plays a very important role in modern mobile communication, and the wide-angle scanning ability of phased array antenna is important. In the paper, the wide-angle dielectric resonator array antenna is proposed. The proposed array antenna consists of a single-layer substrate and dielectric resonator. The 3 dB beamwidth at E-plane is about 150° and the beamwidth at H-plane is 100°. A 4*4 array antenna is investigated, and its operating bandwidth is from 24.5 GHz to 27.5 GHz. Meanwhile, the 4*4 array can obtain a wide-angle scanning from -60° to 60°.