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Omnidirectional Resonator in X-Y Plane Using a Crisscross Structure for Wireless Power Transfer
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 Title & Authors
Omnidirectional Resonator in X-Y Plane Using a Crisscross Structure for Wireless Power Transfer
Kim, Donggeon; Seo, Chulhun;
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Magnetic resonant coupling is more efficient than inductive coupling for transferring power wirelessly over a distance. However, a conventional resonant wireless power transfer (WPT) system requires a transmitter and receiver pair in exactly coaxial positions. We propose a resonator that can serve as an omnidirectional WPT system. A magnetic field will be generated by the current flowed through the transmitter. This magnetic field radiates omnidirectionally in the x-y plane because of the crisscross structure characteristic of the transmitter. The proposed resonator is demonstrated by using a single port. To check the received S21 and transfer efficiency, we moved the receiver around the transmitter at different distances (50-350 mm). As a result, the transmission efficiency is found to be 48%-54% at 200 mm.
Crisscross Structure;Omnidirectional Resonator in X-Y Plane;Resonant Coupling;Transfer Efficiency;Wireless Power Transfer;
 Cited by
W. C. Brown, "The history of power transmission by radio waves," IEEE Transactions on Microwave Theory and Techniques, vol. 32, no. 9, pp. 1230-1242, 1984. crossref(new window)

N. Tesla, "Apparatus for transmitting electrical energy," U.S. patent 1,119,732, Dec. 1914.

A. Kurs, A. Karalis, R. Moffatt, J. D. Joannopoulos, P. Fisher, and M. Soljacic, "Wireless power transfer via strongly coupled magnetic resonances," Science, vol. 317, no. 5834, pp. 83-86, 2007. crossref(new window)

P. Gay-Balmaz and O. J. Martin, "Efficient isotropic magnetic resonators," Applied Physics Letters, vol. 81, no. 5, pp. 939-941, 2002. crossref(new window)

W. M. Ng, C. Zhang, D. Lin, and S. Y. R. Hui, "Two- and three-dimensional omnidirectional wireless power transfer," IEEE Transactions on Power Electronics, vol. 29, no. 9, pp. 4470-4474, 2014. crossref(new window)

O. Jonah and S. V. Georgakopoulos, "Wireless power transfer in concrete via strongly coupled magnetic resonance," IEEE Transactions on Antennas and Propagation, vol. 61, no. 3, pp. 1378-1384, 2013. crossref(new window)

S. Cheon, Y. H. Kim, S. Y. Kang, M. L. Lee, J. M. Lee, and T. Zyung, "Circuit-model-based analysis of a wireless energy-transfer system via coupled magnetic resonances," IEEE Transactions on Industrial Electronics, vol. 58, no. 7, pp. 2906-2914, 2011. crossref(new window)

H. Hoang and F. Bien, "Maximizing efficiency of electromagnetic resonance wireless power transmission systems with adaptive circuits," in Wireless Power Transfer: Principles and Engineering Explorations. Rijeka, Croatia: Intech, 2012, pp. 207-226.

S. Kim and C. Seo, "Design of two-dimensional resonant wireless power transfer using $90^{\circ}$ phase shifted inputs," Journal of The Institute of Electronics and Information Engineers, vol. 52, no. 2, pp. 252-256, Feb. 2015.