Rectification Improvement With Flat-Topped Beams on 2.45-GHz Rectenna Arrays

This article proposes the application of microwave power transfer (MPT) with the drone. As a feasibility study, MPT experiments were conducted to a receiver 1.2 away from a transmitter at 2.45 GHz. We aimed to enhance the rectification efficiency of the MPT by array antenna beamformings, named flat-topped beams. We conducted power transfer experiments between the transmitting antenna and the receiving antenna, where a port-to-port efficiency of...