High-Efficiency Wireless Energy Transmission Using Magnetic Resonance Based on Negative Refractive Index Metamaterial

Choi, Jaewon; Seo, Chulhun

doi:10.2528/pier10050609

Cited by 93 publications

(57 citation statements)

References 19 publications

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“…As electric vehicles make use of large amounts of energy, any loss in energy efficiency due to the energy transfer process from the source to the vehicle, will be significant. It has been found that magnetic resonance coupling based wireless energy transfer system is an effective solution of powering or charging an EV wirelessly [6][7][8][9][10][11][12][13]. As a result of the advantage of being efficient over a relatively far distance, the magnetic resonance coupling based wireless energy transfer system has been utilized for charging EVs.…”

Section: Introductionmentioning

confidence: 99%

Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

Kar¹,

Nayak²,

Bhuyan

et al. 2014

PIER M

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Abstract-A typical magnetic resonance coupling based wireless Electric Vehicle (EV) charging system consists of a transmitting coil at the charging station and a receiving coil in the vehicle. In order to maintain good energy transfer efficiency of the wireless charging system, the effect of the proximal metallic object in the vicinity of the receiving coil has been investigated. Both from the simulation and experimental measurement, it has been observed that the resonance based wireless energy transfer system is very sensitive to the nearby metallic objects, leading to significant deterioration in energy transfer efficiency. This effect on the energy transfer efficiency is also seen to be different for different physical spacing between the transmitting and receiving coils. It is also found that the operating resonant frequency for optimum energy transfer efficiency changes with the metallic object in close proximity to the receiving coil. The simulated results well agree with the experimental results. The analysis will provide future guidelines for designing an efficient resonance coupling based wireless charging system for EVs even in the presence of metallic objects.

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Section: Introductionmentioning

confidence: 99%

Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

Kar¹,

Nayak²,

Bhuyan

et al. 2014

PIER M

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“…There had also been studies of anomalous scattering by conducting cylinders coated with metamaterials [9]. Works associated with the studies of unusual resonances caused by metamaterials [10] for achieving improved efficiencies [11], strong field localization [12], and even microwave filtering in waveguides [13] were also conducted. Other interesting applications have also been considered and studied, and a good summary of them can be viewed in recent manuscripts [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Spherical Slotted Antenna Coated With Double Layer of Materials Having Combinations of Singly and Doubly Negative Parameters and Consequences of Mode Resonances

Ng¹

2012

PIER B

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Abstract-This work studies the influence of material coatings, especially combined natural and metamaterials, on the radiation properties of a practical dipole like antenna, represented by a slotted conducting sphere. The selected geometry allows an exact solution to the problem, and thus the development of exact expressions for the antenna parameters, like the radiated power and directivity. It is shown that for materials with combined positive and negative parameters, mode resonances can occur at thinner coatings, the thickness of which can be made diminishingly small by proper selection of coating parameters. In particular, at these resonances the antenna directivity, while being finite, becomes independent of the antenna size and coating parameters.

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“…Typically, ε and µ are both positive in ordinary materials. The negative permittivity can be obtained by arranging the metallic thin wires periodically [18][19][20][21][22][23][24][25]. Alternatively, an array of split ring resonators (SRRs) can display negative effective permeability.…”

Section: Introductionmentioning

confidence: 99%

Design Analysis of New Metamaterial for Em Absorption Reduction

Faruque¹,

Islam²,

Misran³

2012

PIER

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Abstract-A new triangular metamaterials (TMMs) is designed for electromagnetic (EM) absorption reduction at microwave frequencies in this paper. The reduction of EM absorption with a new TMMs attachment is investigated in this research. The finite-difference time-domain method with lossy-Drude model is adopted in this investigation. The method of EM reduction is presented and the effects of position, distance, and size of metamaterials are analyzed. TMMs have achieved a 1.0923 W/kg for SAR 1 gm which is 45.44% reduction of the initial SAR value for the case of 1 gm SAR.

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High-Efficiency Wireless Energy Transmission Using Magnetic Resonance Based on Negative Refractive Index Metamaterial

Cited by 93 publications

References 19 publications

Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

Spherical Slotted Antenna Coated With Double Layer of Materials Having Combinations of Singly and Doubly Negative Parameters and Consequences of Mode Resonances

Design Analysis of New Metamaterial for Em Absorption Reduction

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