Wireless power transfer via a dielectric loaded multi-moded split cavity resonator (SCR) is proposed. Unlike conventional inductive resonant coupling, the scheme enables the control of both the real and imaginary parts of the transfer impedance. It is demonstrated through measurements that the inclusion of dielectric resonators (DRs) tuned to the SCR TE012 mode, significantly enhances the system figure of merit and optimal efficiency. The effect of the DRs is shown to be related to the resonant coupling of the DRs TE01δ and SCR modes, resulting in an electromagnetic induced transparency-like window. An efficiency of 70% is achieved when the transfer distance is 7 cm, or half wavelength. Additionally, it was shown that the efficiency is above 40% over a relatively wide bandwidth and a wide range of optimum load impedance.
@article{arxiv.1901.06684,
title = {Wireless Power Transfer via Dielectric Loaded Multi-moded Split Cavity Resonator},
author = {Sameh Elnaggar and Chinmoy Saha and Yahia Antar},
journal= {arXiv preprint arXiv:1901.06684},
year = {2020}
}