Wide Beam Coverage Dipole Antenna Array with Parasitic Elements for UAV Communication

Abstract

To apply the unmanned aerial vehicle (UAV) to everything (U2X) communication such as UAV and infrastructure, wide beam coverage dipole antenna array with parasitic elements is presented in this paper. Based on the linear array antenna theory using dipole antennas, it consists of two dipole antennas with parasitic elements. The proposed antenna is composed of a radiator in top substrate, two supports with the balun, and metallic reflector with a feeder. Two dipole antennas made up of broadside beam. Moreover, added parasitic elements improve the beam coverage. Simulated 10-dB impedance bandwidth is approximately 14% and the center frequency is 5.09 GHz. The peak gain, total efficiency, and half power beamwidth (HPBW) are 5 dBi, 84%, and 161°, respectively. Compared to dipole antenna array without parasitic elements (reference antenna), the proposed antenna improved approximately 156% of beam coverage.