Application of High-Q dielectric resonators for wireless power transfer system

Abstract

We study the magnetic near field resonance wireless power transfer systems based on high refractive index dielectric resonators. We propose to operate at higher-order (multipole) modes of high refractive index dielectric resonators instead of magnetic dipole mode in the metallic coils and numerically demonstrate the higher efficiency due to minimization of the radiation losses. Moreover, the system operating at magnetic quadrupole mode is proved to be more stable to the mutual orientation of transmitter and receiver.