A UAV-Mountable Flat Array Antenna System

In this paper, we suggest a method to design a small antenna system apt for the attachment to the drone with multi-propellers. Since each of multi-propellers is part of a branch connected to the center of the drone, a flat radial power divider is designed to feed antennas adhering to the propellers, instead of the Wilkinson power divider. For the frequency of 2.4 GHz to build a wireless link between the quadcopter and the ground, the 4-way radial power divider and 4 antennas are designed for the same frequency and light weight.