A Wideband Beam forming Antenna Array for 802.11ac and 4.9 GHz

In this work, a wideband high gain 1×4 beamforming (BF) antenna array has been proposed for 5.17 - 5.85 GHz ISM band and extended coverage for 4.92 - 4.98 GHz licensed band. The key antenna performances of 13.6 dBi realized gain, 24.4° Beamwidth, 12.9 dB Sidelobe at 0° beam and ±40° beam steering capability has been achieved. The proposed antenna intended to provide the enhanced wireless link between the ground base station and the mobile terminals with beamforming concept that allow beam steering to focus on targeted direction and null the interference direction with small beam width. The proposed antenna can be further re-configured with different gain and steering beam to cater the dynamic transportation environments.