Wireless energy transfer

  • US 20140021907A1
  • Filed: 10/03/2012
  • Published: 01/23/2014
  • Est. Priority Date: 10/03/2011
  • Status: Active Grant
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First Claim
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1. An apparatus comprising:

  • a first resonator circuit having a capacitor with opposing capacitive plates and an inductive coil connected to the capacitive plates;

    a second resonator circuit having a capacitor with opposing capacitive plates and an inductive coil connected to the capacitive plates;

    the first and second resonator circuits being configured and arranged with parallel alignment of the capacitors and parallel alignment of the inductive coils to facilitate alignment of an electromagnetic field therebetween;

    the second resonator circuit being configured and arranged to transmit sub-wavelength electromagnetic energy to the first resonator at a resonant frequency matched to a resonant frequency of the first resonator, by passing an electromagnetic wave in the electromagnetic field;

    a reflective body coupled to the first resonator and configured and arranged to reflect a portion of the electromagnetic energy, transmitted by the second resonator, back toward the second resonator circuit; and

    an electromagnetic energy reflector configured and arranged with the reflective body to mitigate loss of the electromagnetic energy transmitted by the second resonator circuit by bouncing the energy between the electromagnetic energy reflector and the reflective body to facilitate absorption of the electromagnetic energy by the first resonator circuit.

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