Design and experiment of multi-stage resonator-coupled WPT system

Resonator-coupled WPT (Wireless Power Transfer) systems are designed using the BPF theory for multi-stage configuration. Not only the transmission property versus frequency, but transmission loss property versus number of stages are studied, showing the usefulness of the multi-stage system and the theory itself at the same time. Before the design example is shown, application of the BPF theory to the WPT system is critically studied, resulting in clarification of the superiority of the theory.