Self-Oscillating Wireless Power Transfer Systems

Preprint English OPEN
Tretyakov, Sergei A. ; Simovski, Constantin R. ; Valagiannopoulos, Constantinos A. ; Ra'di, Younes (2017)
  • Subject: Physics - Classical Physics | Physics - Applied Physics
    acm: ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS | ComputerApplications_COMPUTERSINOTHERSYSTEMS

Conventional wireless power transfer systems consist of a microwave power generator and transmitter located at one place and a microwave power receiver located at a distance. Here we show that wireless power transfer can be realized as a single distributed microwave generator with an over-the-air feedback, so that the microwave power is generated directly at the place where the energy needs to be delivered. We demonstrate that the use of this paradigm increases efficiency and dramatically reduces sensitivity to misalignments, variations in load and power, and possible presence of obstacles between the source and receiver.
  • References (4)

    [1] A. Kurs, A. Karalis, R. Moffatt, J. D. Joannopoulos, P. Fisher, M. Soljacic, “Wireless Power Transfer via Strongly Coupled Magnetic Resonances,” Science, 317, 2007, pp. 83-86.

    [2] S. Y. R. Hui, W. Zhong, and C. K. Lee, “A Critical Review of Recent Progress in Mid-Range Wireless Power Transfer,” IEEE Trans. Power Electr., 29, 2016, pp. 4500-4511.

    [3] J. Lee and S. Nam, “Fundamental Aspects of Near-Field Coupling Small Antennas for Wireless Power Transfer,” IEEE Trans. Antennas Propag., 58, 2010, pp. 3442-3449.

    [4] Y. Ra'di, D. L. Sounas, A. Alu`, and S. A. Tretyakov, “Parity-timesymmetric Teleportation,” Phys. Rev. B, 93, 2016, p. 235427.

  • Metrics
    No metrics available
Share - Bookmark