Omni-directional Antenna Array with Improved Gain for 5G Communication Systems

An omni-directional antenna array with enhanced gain is presented in this paper. Designed in the 5G operating band of 25.92-29.12GHz, the antenna exhibits a simulated average peak gain of 7dBi. It consists of 4 dipoles and a substrate integrated waveguide cavity. The -10dB frequency band of the 1×4 linear array is 25.87-29.24GHz and the peak gain is higher than 12dBi in the operating frequency band.