Optimized wireless power transfer schemes with metamaterial-based resonators

A systematic technique for the accurate implementation of electromagnetic resonance-based wireless power transfer (WPT) implementations by means of diverse metamaterials is presented in this paper. To this aim, two distinct resonating elements are selected, i.e. the edge-coupled split ring resonator (EC-SRR) and the E2 SRR. In particular, the macroscopic properties of these elements are precisely retrieved and the preceding SRRs are then incorporated in the featured WPT scheme. The performance of the system, including the magnetically resonant SRR, is proven to be very promising for distances within a few centimeters, as expected from the initial theoretical analysis, contrary to the case of the electrically resonant elements.