Space Propagation Model for Wireless Power Transfer System of Dual Transmitter

In this paper, we propose a measurement method to measure the energy distribution of the two-coil WPT-MRC system. We layer the energy transfer space, measure the load voltage of the receiver at the sampling point of each layer to obtain the energy distribution of the transmitter in space, and then establish a transmission model from the transmitter to the single receiver. We analyze the energy distribution of the transmitter in the transmission space by 3-D view and contour map. The area where the receiver overlaps with the single transmitter increases, the energy obtained increases. The receiver obtains the maximum energy at the area where the receiver is facing a single transmitter or the receiver is located at the center of symmetry of the transmitter array. At close range, the energy reaches a local minimum when the receiver is facing a single transmitter.