Design of 4×4 microstrip Quasi-Yagi beam-steering antenna array operation at 3.5GHz for future 5G vehicle applications

Abstract

In this paper, a novel design of 4×4 microstrip Quasi-Yagi beam-steering antenna array operation at 3.5GHz for future 5G vehicle applications is proposed. This array consists of sixteen element antennas with dimension of 374×374×1.15mm3, which exhibits good bandwidth (impedance bandwidth of single antenna element about 440MHz for S11 less than −10dB at the center frequency of 3.5GHz) and high gain (for single antenna about 7dBi and for antenna array about 5.8∶8.76dBi). The beam-steering characteristics in the operation band can nearly achieve omni-directional radiation.