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PIER PIER B PIER C PIER M PIER Letters
2017-04-14
Non-Coil, Optimal Sources for Wireless Powering of Sub-Millimeter Implantable Devices
By
Sanghoek Kim,

    Professor Sanghoek Kim

    Kyung Hee University

    South Korea

    Homepage

John S. Ho,

    Dr. John S. Ho

    National University of Singapore

    Singapore

    Homepage

Ada S. Y. Poon

    Dr. Ada S. Y. Poon

    Stanford University

    USA

    Homepage

Progress In Electromagnetics Research, Vol. 158, 99-108, 2017
doi:10.2528/PIER16092301
Abstract
This paper presents non-coil sources to improve the wireless power transfer efficiency for implantable device used in various medical applications --- cardiovascular devices, endoscope in the small intestine, and neurostimulator in the brain. For each application, a bound on the power transfer efficiency and the optimal source achieving such bound are analytically solved. The results reveal that depending on the depth of the implantable devices, power can be transferred to a sub-millimeter scaled receiver with the efficiency ranging from -57 dB to -33 dB, which is up to 6.6 times higher than the performance of existing coil-based source systems. The technique introduced in this paper can be broadly applied to other medical applications.
Citation
Sanghoek Kim, John S. Ho, and Ada S. Y. Poon, "Non-Coil, Optimal Sources for Wireless Powering of Sub-Millimeter Implantable Devices," Progress In Electromagnetics Research, Vol. 158, 99-108, 2017.
doi:10.2528/PIER16092301
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