A Novel High Efficiency Beam Steering Array for 5G Millimeter-Wave Communication Systems

In this paper, a novel high efficiency millimeter-wave bean steering antenna array for 5G communication systems is presented. The design idea of a single antenna element comes from the UWB disc monopole antenna. A 1×8 antenna array is designed and simulated. Simulated results show that the reflection coefficient is lower than -10dB within the frequency range from 20 to 30.5 GHz, which covers the 24.25-27.5 GHz band proposed by lTV and the 27.5-28.35 GHz band proposed by FCC for 5G. The total radiation efficiency of the proposed array is higher than 80% in a wide frequency range from 25GHz to 30GHz. The gain of the antenna array varies from 8.23 to 9.91 dBi over the frequency range of 25-30 GHz. The simulated results also illustrate good beam steering performance across the wide frequency band. The main beam can scan from -50°to 50°with 1.68 dB gain fluctuation in the E-plane.