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A brief feasibility study of wireless power transfer using strongly coupled magnetic resonance (SCMR) on cochlear implant at 11.7 MHz

International Journal of Biosensors & Bioelectronics
Bhargava Teja Nukala,1 Lie YC,2 Tam Q Nguyen2

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We report here a detailed 3-dimensional (3-D) electromagnetic (EM) simulation study on the feasibility of Wireless Power Transfer (WPT) using the strongly coupled magnetic resonance (SCMR) effect at MHz frequencies for potential biosensors applications such as cochlear implants. We have already demonstrated our SCMR results in the application of micro scale biosensors.1 In this paper we have demonstrated the use of Strongly Coupled Magnetic Resonance (SCMR) technique in cochlear implants. SCMR is very useful for higher power transfer especially in near field magnetic resonance applications. We demonstrated a method to improve the efficiency of cochlear implant coils to maximize the power efficiency at MhZ frequencies. Our results show that SCMR can improve the power efficiency by 40% compared to the traditional 2-coil system.


-dimensional, electromagnetic, wireless power transfer, potential biosensors, cochlear implants