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

In this paper, a novel high efficiency millimeterwave 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.