A Full Duplex Megahertz Simultaneous Wireless Power and Data Transfer System with High Communication Rates

In this paper, simultaneous wireless power and data transfer (SWPDT) is introduced to the megahertz (MHz) wireless power transfer system. A megahertz simultaneous wireless power and data transfer (MHz SWPDT) system for full-duplex communication with higher communication rates is proposed. The proposed system communicates with a power loop by sharing a coupling coil, which is tapped to inject and extract high-frequency data carrier to send and receive data. Two MHz communication bands are constructed to achieve stable and accurate full-duplex communication. In this paper, the design method of the power part and the signal part is given in detail. Finally, in order to verify the feasibility of the proposed method, the system simulation is carried out to realize the full-duplex communication with transmission speeds of 2Mbps and 4Mbps. At the same time, the prototype experiment is carried out, and half duplex communication is carried out under 2Mbps and 4Mbps, and the demodulation results of half duplex communication under 2Mbps are given. The received signal can reproduce the original signal more completely.