Power Transfer to Moving Vehicles

8. June 2015 07:45 by streng in
Currently the WPT transfer distance is in range of several centimeters. Technical challenges to over

Currently the WPT transfer distance is in range of several centimeters. Among the technical challenges to overcome we can mention:

  • acceptable power transfer efficiency at high transfer range
  • increasing power level
  • misalignment tolerance
  • safety considerations




Coil-to-coil distance & 30 m working wavelength transfer efficiencies


2-turn copper ribbon coil (3cm wide, 0.14 mm thick) with d=60cm and 5 to 70 pF adjustable high voltage capacitor. The quality factor of the resonator is 1338 in the absence of the metallic plane and 1329 in the presence of a metallic plane.

Source: Safe Wireless Power Transfer to Moving Vehicles: Design of Radiationless Antenna

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