Wireless Power Transfer via Strongly Coupled Magnetic Resonances

  title={Wireless Power Transfer via Strongly Coupled Magnetic Resonances},
  author={A. Kurs and A. Karalis and R. Moffatt and J. Joannopoulos and P. Fisher and M. Solja{\vc}i{\'c}},
  pages={83 - 86}
  • A. Kurs, A. Karalis, +3 authors M. Soljačić
  • Published 2007
  • Chemistry, Medicine
  • Science
  • 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 ∼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. 

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    Here, by mid-range, we mean that the sizes of the devices