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Power harvesting

  • US 7,266,269 B2
  • Filed: 12/16/2004
  • Issued: 09/04/2007
  • Est. Priority Date: 12/16/2004
  • Status: Active Grant
First Claim
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1. A power harvesting module comprising:

  • at least one electromagnetic (EM) radiation modulator configured to receive and modulate an EM radiation from at least one source, wherein at least a part of the energy of the EM radiation is unused or discarded at the modulator during modulation to provide a modulated EM radiation;

    at least one energy harvester configured to at least partially harvest the energy of the EM radiation unused or discarded at the modulator; and

    a bias circuit to dynamically vary a bias voltage to control the performance of the power harvesting module.

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