The relay effect on wireless power transfer using witricity

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

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

44 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 languageEnglish
Title of host publicationDigests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC 2010
DOIs
Publication statusPublished - 26 Jul 2010
Event14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010 - Chicago, IL, United States
Duration: 9 May 201012 May 2010

Conference

Conference14th Biennial IEEE Conference on Electromagnetic Field Computation, CEFC2010
Country/TerritoryUnited States
CityChicago, IL
Period9/05/1012/05/10

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Electrical and Electronic Engineering

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