Abstract
This paper presents an experimental study of the performance of a wireless resonant energy link for implantable biomedical devices. More speciflcally, the proposed system consists of two planar resonators: a primary resonator that is connected to a power source and operates outside the body, and a secondary resonator that is connected to the implanted device and operates inside the body. Each resonator is a planar spiral resonator; the wireless power transmission is obtained by exploiting the magnetic coupling between the two resonators when they are operating at small distances. A prototype working in the ISM band centered at 434MHz has been developed and analyzed. Reported results conflrm that the proposed system is a viable solution for wirelessly providing implantable devices with the power necessary for operation.
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