title: Wireless power transfer via strongly coupled magnetic resonances.
abstract: Using self-resonant coils in a strongly coupled regime, we experimentally demonstrated efficient nonradiative power transfer over distances up to 8 times the radius of the coils. We were able to transfer 60 watts with approximately 40% efficiency over distances in excess of 2 meters. We present a quantitative model describing the power transfer, which matches the experimental results to within 5%. We discuss the practical applicability of this system and suggest directions for further study.
authors.affiliation: Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. akurs@mit.edu
authors.forename: André
authors.initials: A
authors.lastname: Kurs
authors.forename: Aristeidis
authors.initials: A
authors.lastname: Karalis
authors.forename: Robert
authors.initials: R
authors.lastname: Moffatt
authors.forename: J D
authors.initials: JD
authors.lastname: Joannopoulos
authors.forename: Peter
authors.initials: P
authors.lastname: Fisher
authors.forename: Marin
authors.initials: M
authors.lastname: Soljacic