Wireless energy transfer system

  • US 8,421,274 B2
  • Filed: 09/10/2009
  • Issued: 04/16/2013
  • Est. Priority Date: 09/12/2008
  • Status: Active Grant
First Claim
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1. A wireless energy transfer unit having at least one resonant frequency, comprising:

  • an energy coupling/extraction coil; and

    a wireless energy transfer cell magnetically coupled to said energy coupling/extraction coil, said wireless energy transfer cell comprising an LC resonant tank including at least one insulator having a first surface and a second surface opposite said first surface, a spiral conductor coil provided on said first surface of said at least one insulator, and a plurality of non-spiral conductive strips provided, on said second surface of said at least one insulator, wherein said spiral conductor coil, said at least one insulator and said plurality of non-spiral conductive strips form at least one capacitor of said LC resonant tank.

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