A Wideband Magneto-Electric Dipole Phased Array for 5G Millimeter-Wave Applications

In this paper, a wideband magneto-electric (ME) dipole antenna excited by an L-shaped probe is proposed in Ka-band. The simulated results show that the proposed antenna element has a wide impedance bandwidth of 52.1 % from 22.6 to 36.8 GHz, and cross-polarization levels of less than -20 dB over the whole operating band. Based on the antenna element, an 8 × 8 antenna array is designed, which can obtain a wide-angle beam scanning range of ±60° from 23 to 29GHz, and ±45° from 29 to 32GHz in both E- and H-plane. Moreover, as the main beam scanning from -60° to 60 °, the gain of the antenna array is stable, and the variation range is within 4dBi.