Wireless non-radiative energy transfer

  • US 8,076,800 B2
  • Filed: 03/31/2009
  • Issued: 12/13/2011
  • Est. Priority Date: 07/12/2005
  • Status: Active Grant
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First Claim
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1. A system, comprising:

  • a source resonator configured to be coupled to an energy source; and

    a second resonator located a distance from the source resonator;

    wherein the source resonator and the second resonator are coupled to provide resonant non-radiative wireless energy transfer between the source resonator and the second resonator and wherein at least one resonator is a tunable resonator,wherein the source resonator has a resonant frequency ω

    1, an intrinsic loss rate Γ

    1, and a first Q-factor Q1

    1/(2Γ

    1), the second resonator has a resonant frequency ω

    2, an intrinsic loss rate Γ

    2, and a second Q-factor Q2

    2/(2Γ

    2), and at least one of Q1 and Q2 is greater than 100.

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