Optimization of Simultaneous Wireless Power and Data Transmission System with Single Coil

Abstract

A simultaneous wireless power and data transfer system for UAV based on double-sided LCC compensation structure was presented in this paper. To achieve the efficient power transmission and stable data transmission, the data transmission gain is firstly set to be promoted through the analysis on data transfer channel. The double-sided LCC topology with band-stop trapper is used to reduce the interference of power channel to data transfer channel. The coupling relationships between each circuits are taken into consideration and a matching method of resonance parameters to increase the data transmission gain is presented. Based on the relationship between transmission gain and interference of power channel, an optimization design method focused on data transfer channel parameters for improving the signal to noise ratio is presented. Finally, the simulation and experimental results could verify that the proposed optimization of simultaneous wireless power and data transfer system has promoted the SNR and kept stable power transmission.