The relay effect on wireless power transfer using witricity

Fei Zhang; Steven A. Hackworth; Weinong Fu; Mingui Sun

doi:10.1109/CEFC.2010.5481512

The relay effect on wireless power transfer using witricity

Fei Zhang, Steven A. Hackworth, Weinong Fu, Mingui Sun

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

53 Citations (Scopus)

Abstract

Witricity is a recent technology for wireless power transfer over a limited distance. In this paper, we investigate a relay effect to extend the distance. The concept of magnetic resonance in strongly coupled regime with more than two resonators is presented. Theoretical analysis is performed based on a set of differential equations and experiments are conducted to demonstrate its effectiveness. Our results show that the efficiency of power transfer can be improved significantly using one or more relay resonators. This approach enhances the performance of the present two-resonator witricity systems and allows transmitting power over a longer range, following a curved path, and using smaller resonators.

Original language	English
Title of host publication	Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010
DOIs	https://doi.org/10.1109/CEFC.2010.5481512
Publication status	Published - 26 Jul 2010
Event	14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010 - Chicago, IL, United States Duration: 9 May 2010 → 12 May 2010

Conference

Conference	14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010
Country/Territory	United States
City	Chicago, IL
Period	9/05/10 → 12/05/10

ASJC Scopus subject areas

Computational Theory and Mathematics
Electrical and Electronic Engineering

More information

10.1109/CEFC.2010.5481512

Cite this

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title = "The relay effect on wireless power transfer using witricity",

abstract = "Witricity is a recent technology for wireless power transfer over a limited distance. In this paper, we investigate a relay effect to extend the distance. The concept of magnetic resonance in strongly coupled regime with more than two resonators is presented. Theoretical analysis is performed based on a set of differential equations and experiments are conducted to demonstrate its effectiveness. Our results show that the efficiency of power transfer can be improved significantly using one or more relay resonators. This approach enhances the performance of the present two-resonator witricity systems and allows transmitting power over a longer range, following a curved path, and using smaller resonators.",

author = "Fei Zhang and Hackworth, {Steven A.} and Weinong Fu and Mingui Sun",

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Zhang, F, Hackworth, SA, Fu, W & Sun, M 2010, The relay effect on wireless power transfer using witricity. in Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010., 5481512, 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010, Chicago, IL, United States, 9/05/10. https://doi.org/10.1109/CEFC.2010.5481512

The relay effect on wireless power transfer using witricity. / Zhang, Fei; Hackworth, Steven A.; Fu, Weinong et al.
Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010. 2010. 5481512.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - Witricity is a recent technology for wireless power transfer over a limited distance. In this paper, we investigate a relay effect to extend the distance. The concept of magnetic resonance in strongly coupled regime with more than two resonators is presented. Theoretical analysis is performed based on a set of differential equations and experiments are conducted to demonstrate its effectiveness. Our results show that the efficiency of power transfer can be improved significantly using one or more relay resonators. This approach enhances the performance of the present two-resonator witricity systems and allows transmitting power over a longer range, following a curved path, and using smaller resonators.

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M3 - Conference article published in proceeding or book

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BT - Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010

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The relay effect on wireless power transfer using witricity

Abstract

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