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Electrical excitation of the local earth for resonant, wireless energy transfer

  • C. W. Van Neste (a1), Richard Hull (a1), J. E. Hawk (a1), Arindam Phani (a1), Martyn J. Unsworth (a2) and Thomas Thundat (a1)...
Abstract

Here we demonstrate wireless energy transfer that exploits the conductivity and permittivity of soil to create a potential gradient on the surface around an earthed electrode, distributing electrical energy over the area. This generated surface potential can be amplified using a special standing-wave receiver for harnessing the distributed energy. We have experimentally mapped the surface potential around the electrode and plotted the received energy covering an area of 1200 m2. Key operating parameters are determined with a discussion on optimizing the system efficiency. This technique could address the challenge of distributing electrical energy to many low power devices over large outdoor areas without the use of wires.

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Copyright
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Corresponding author
Corresponding author: C.W. Van Neste Email: cvannest@ualberta.ca
References
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Wireless Power Transfer
  • ISSN: -
  • EISSN: 2052-8418
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