Finite-element analysis and corresponding experiments of resonant energy transfer for wireless transmission devices

Junhua Wang, Siu Lau Ho, Weinong Fu, Cheung Tsz Kit, Mingui Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


A wireless energy transfer system based on resonant energy transfer technology for power transmission and recharging of electrical devices is studied. The relationship between the energy transfer efficiency and several key parameters of the system is analyzed using finite-element method. Thin film resonant cells, consisting of a tape coil on one layer, which is separated by an insulation layer to form a capacitor with another layer, are fabricated. These cells are light, compact, and flexible, and provide convenience and flexibility in the design of wireless devices. The feasibility of this system is demonstrated using practical measurements to showcase its performance.
Original languageEnglish
Article number5754798
Pages (from-to)1074-1077
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 1 May 2011


  • Mutual inductance
  • rectangular spiral
  • resonant wireless energy transfer
  • strong inductive coupling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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