FDM-based power distribution in parallel line fed wireless power transfer

This paper is the first examination of the possibility of employing frequency division multiplexing (FDM) in power distribution for multiple receivers in parallel line fed wireless power transfer (WPT). At the source, power is divided into multiple flows and delivered to receivers by using multiple carrier frequencies. At each receiver, load impedance is adapted to system parameters at a predetermined carrier frequency to pick up the corresponding power flow. Numerical analysis is carried out to verify capability of FDM-based power distribution in the parallel line fed WPT.