Design of A New Structure for Transmitter and Receiver Coils in Wireless Transmission Systems with low Sensitivity in

Power transmission from source to load via transmitter and receiver coils is one of the most important parts of a wireless power transmission system. Certainly, designing a proper structure for these coils can improve mutual inductance, coupling coefficient, efficiency and system performance. In this paper, a new coil structure with low sensitivity to misalignment and movement of coils in comparison to conventional structures is presented and studied. The mutual inductance and system efficiency have been improved through selecting a specific shape for the core of the coils and using a soft magnetic composite for core structure. The superiority of the proposed structure compared to conventional structures is proved by the results obtained using Flux software.