In this video, we discuss the transfer of wireless power through inductive/near-field systems that use resonant coupling of loops to transfer energy. A discussion of conventional and over-coupled systems is included.
Paper: A.P. Sample, D.A. Meyer, J.R. Smith, “Analysis, Experimental Results, and Range Adaptation of Magnetically Coupled Resonators for Wireless Power Transfer,” IEEE Transactions on Industrial Electronics, vol 58, no 2, Feb 2011.