Optimization for improving coupling coefficient of wireless power transfer system with single-transmitter and four-receiver

This paper proposes a method to enhance the coupling coefficient of a wireless power transfer system with single-transmitter and four-receiver by employing an axially-arranged coil configuration. By optimizing receiver coil diameters and employing axial arrangement, this approach can improve spatial utilization on the receiver side and increases the coil coupling coefficient, thereby contributing to overall system efficiency.