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A recent study on witricity (wireless electricity) has demonstrated that wireless energy can be delivered over a moderate distance using strongly coupled magnetic resonance. The objective of this work is to apply the witricity technology to the problem of powering a wireless Body Sensor Network (wBSN). The theory of witricity is investigated using coupled mode theory. Compact witricity resonators...
Recently, a highly efficient method to transmit power wirelessly using mid-range resonant coupling was reported. Based on this method, we present a multilayer thin film design of power transfer cells for medical applications. Consisting of a tape coil in the exterior layer and strips in the interior layer separated by an insulation layer, these cells have an equivalent structure of multiple inductors...
In this paper, we present a wireless power transfer and communication method for biomedical sensors and implants by taking advantage of recently developed witricity technology. New witricity resonator and system designs are described and evaluated by performing both in vitro and in vivo experiments. When compared to the current designs, these new witricity designs demonstrate much improved performances...
Witricity, a highly efficient wireless power transfer method using mid-range resonant coupling, was reported in recent literature. Based on this method, we present a wireless power transfer scheme using thin film resonant cells for medical applications. The thin film cells, consisting of a tape coil in the exterior layer and conductive strips in the interior layer separated by an insulation layer,...
This paper investigates wireless electricity (witricity) and its application to medical sensors and implantable devices. Several coupling scenarios of resonators are analyzed theoretically. In vitro experiments are conducted in open air and through an agar phantom of the human head. An in vivo animal experiment is also carried out. Our studies indicate that witricity is a suitable tool for providing...
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