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Wireless Power Transfer in the Radiative Near Field

Publication ,  Journal Article
Gowda, VR; Yurduseven, O; Lipworth, G; Zupan, T; Reynolds, MS; Smith, DR
Published in: IEEE Antennas and Wireless Propagation Letters
January 1, 2016
Published version (DOI)

A scheme for wireless power transfer (WPT) in the radiative near-field (Fresnel) region is presented. The proposed Fresnel WPT scheme is designed to focus microwaves to a diffraction-limited region where a detector can be positioned, achieving reasonably high power transfer efficiency over moderate distances. The configuration consists of transmit and receive microstrip patch array antennas, with the receiving antenna connected to a power-harvesting half-wave rectifier (rectenna). Fresnel region operation enables the fields radiated by the transmitting aperture to be localized both in range and cross-range. Using Fresnel region focusing, we achieve an increase of 66.8% in the amount of received power when compared to the performance of a conventional beamforming array. We also demonstrate the efficiency improvement by powering an LED using the on-axis and off-axis focusing configurations.

Duke Scholars

David R. Smith
Author David R. Smith Electrical and Computer Engineering
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Published In

IEEE Antennas and Wireless Propagation Letters

DOI

10.1109/LAWP.2016.2542138

ISSN

1536-1225

Publication Date

January 1, 2016

Volume

15

Start / End Page

1865 / 1868

Related Subject Headings

  • Networking & Telecommunications
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
 

Citation

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Gowda, V. R., Yurduseven, O., Lipworth, G., Zupan, T., Reynolds, M. S., & Smith, D. R. (2016). Wireless Power Transfer in the Radiative Near Field. IEEE Antennas and Wireless Propagation Letters, 15, 1865–1868. https://doi.org/10.1109/LAWP.2016.2542138
Gowda, V. R., O. Yurduseven, G. Lipworth, T. Zupan, M. S. Reynolds, and D. R. Smith. “Wireless Power Transfer in the Radiative Near Field.” IEEE Antennas and Wireless Propagation Letters 15 (January 1, 2016): 1865–68. https://doi.org/10.1109/LAWP.2016.2542138.
Gowda VR, Yurduseven O, Lipworth G, Zupan T, Reynolds MS, Smith DR. Wireless Power Transfer in the Radiative Near Field. IEEE Antennas and Wireless Propagation Letters. 2016 Jan 1;15:1865–8.
Gowda, V. R., et al. “Wireless Power Transfer in the Radiative Near Field.” IEEE Antennas and Wireless Propagation Letters, vol. 15, Jan. 2016, pp. 1865–68. Scopus, doi:10.1109/LAWP.2016.2542138.
Gowda VR, Yurduseven O, Lipworth G, Zupan T, Reynolds MS, Smith DR. Wireless Power Transfer in the Radiative Near Field. IEEE Antennas and Wireless Propagation Letters. 2016 Jan 1;15:1865–1868.

Published In

IEEE Antennas and Wireless Propagation Letters

DOI

10.1109/LAWP.2016.2542138

ISSN

1536-1225

Publication Date

January 1, 2016

Volume

15

Start / End Page

1865 / 1868

Related Subject Headings

  • Networking & Telecommunications
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering