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HARVESTING AMBIENT RADIO FREQUENCY ELECTROMAGNETIC ENERGY FOR POWERING WIRELESS ELECTRONIC DEVICES, SENSORS AND SENSOR NETWORKS AND APPLICATIONS THEREOF

  • US 20070109121A1
  • Filed: 07/24/2006
  • Published: 05/17/2007
  • Est. Priority Date: 08/04/2005
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • a control module comprising an energy harvesting controller;

    a tag module controlled by said control module;

    a sensor module controlled by said control module;

    an energy harvesting module controlled by said energy harvesting controller and adapted to wirelessly collect ambient radio frequency (RF) electromagnetic (EM) energy; and

    a power module adapted to provide a power supply for said control module, said power supply being generated by the collected ambient RF EM energy, wherein said energy harvesting controller is adapted to (i) assess power requirements of each of the tag and sensor modules, (ii) transfer power from said energy harvesting module to any of said tag and sensor modules, and (iii) charge a local energy storage device.

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