Patent ID: 8395282

Claim:
A system, comprising: a source resonator, configured to be coupled to an energy source, the source resonator having a resonant frequency ω 1 and an intrinsic loss rate Γ 1 , and capable of storing electromagnetic energy with a high intrinsic quality factor Q 1 =ω 1 /(2Γ 1 ), and a second resonator, the second resonator having a resonant frequency ω 2 and an intrinsic loss rate Γ 2 , and capable of storing electromagnetic energy with a high intrinsic quality factor Q 2 =ω 2 /(2Γ 2 ), wherein at least one of the resonators has a characteristic size greater than or equal to 1 cm, and wherein the source resonator and second resonator are configured to be electro-magnetically coupled to exchange energy over a distance a few times the characteristic size via non-radiative wireless energy transfer.