Researchers Create Device that Harvests Energy from Ambient Signals

  • Georgia Tech researchers have developed an energy-harvesting device that can collect power from various sources including radio and television transmitters, cell phone networks and satellite communications systems.
  • “We are using an ultra-wideband antenna that lets us exploit a variety of signals in different frequency ranges, giving us greatly increased power-gathering capability,” explains Manos Tentzeris of Georgia Tech’s School of Electrical and Computer Engineering.
  • The device has the ability to capture energy from a range of banks, convert the energy from AC to DC power, and then subsequently store it in capacitors and batteries.
  • The team hopes that the device could provide a new means of powering networks of wireless sensors, microprocessors and communications chips.

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