Abstract
Implantable bioelectronics are becoming more widespread for biomedical applications. To avoid frequent surgical operations, self-powered implantable bioelectronics are more attractive. Traditional wireless power transfer (WPT) methods suffer from limitations that include bulky size, short transfer distance or flexibility limitation. In this paper, we present a new body channel based wireless power transfer (BC-WPT) method which uses the human body as power transfer medium to transfer power. In this way, the power receiver is only needed to be implanted in body tissue and the power transmitter can be applied on any part of the human body surface. Since the power transmitter and power receiver do not need a transmitting coil/antenna and a receiving coil/antenna, BC-WPT has the advantages of lower size, long transfer distance, and flexibility. A simulation platform and a prototype BC-WPT system are built to validate the availability of the proposed method.
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