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Title: A novel resonant inductive magnetic coupling wireless charger with TiO₂compound interlayer
Authors: Ho, Siu-lau
Wang, Junhua
Fu, Weinong
Sun, Mingui
Subjects: Coils
Finite element analysis
Magnetic devices
Organic compounds
Titanium compounds
Issue Date: 1-Apr-2011
Publisher: American Institute of Physics
Source: Journal of applied physics, 1 Apr. 2011, v. 109, no. 7, 07E502, p. 1-3.
Abstract: A nonradiative energy transformer exploiting TiO₂nano-powder and (C₄H₆O₂)ₓ latex as a combined interlayer is proposed. The transformer works on ‘strong coupling’ between two coils (i.e., resonators), which are physically separated from each other by distances that are longer than the characteristic sizes of each resonator, to realize efficient wireless energy transfer. Nonradiative energy transfer between the two resonators is facilitated through the coupling of their resonant-field evanescent tails. Finite element analysis and experiments have been carried out to facilitate quantitative comparison. The efficiency of the proposed system is 70.6% at 5 cm and 26.3% at 15 cm at an operating frequency of 1.74 MHz. When compared with typical magnetic inductive coupling energy transmission devices with low dielectric constants, the efficiency of the proposed system is much higher.
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. L. Ho et al., J. Appl. Phys. 109, 07E502 (2011) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.3536558
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:EE Journal/Magazine Articles

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