High Efficiency and Power Transfer in Wireless Power Magnetic Resonators

  • US 20090072629A1
  • Filed: 09/16/2008
  • Published: 03/19/2009
  • Est. Priority Date: 09/17/2007
  • Status: Active Grant
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First Claim
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1. A wireless power system, comprising:

  • a signal generator, having a connection to a source of power, and which creates a modulated signal at a first frequency;

    a transmitting antenna, transmitting a magnetic field having said first frequency and based on power created by said signal generator;

    a receiving antenna, receiving a magnetic power signal created by said transmitting antenna, said receiving antenna being a distance greater than 1 m spaced from said transmitting antenna; and

    a load receiving part, receiving power from said receiving antenna;

    wherein a transfer efficiency between said transmitting antenna and said receiving antenna is greater than 25% at 1 m of distance between said transmitting antenna and said receiving antenna.

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