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Switchable Polymer-based Thin Film Coils as a Power Module for Wireless Neural Interfaces by S. Kim; K. Zoschke; M. Klein; D. Black; K. Buschick; M. Toepper; P. Tathireddy; R. Harrison; H. Oppermann; F. Solzbacher is a Engineering article available to read on EtoBox.

What is Switchable Polymer-based Thin Film Coils as a Power Module for Wireless Neural Interfaces about?

Reliable chronic operation of implantable medical devices such as the Utah Electrode Array (UEA) for neural interface requires elimination of transcutaneous wire connections for signal processing, powering and communication of the device. A wireless power source that allows integration with the UEA is therefore necessary. While (rechargeable) micro-batteries as well as biological micro-fuel cells are yet far from meeting the power density and lifetime requirements of an implantable neural interface device, inductive coupling between two coils is a promising approach to power such a device with highly restricted dimensions. The power receiving coils presented in this paper were designed to maximize the inductance and quality factor of the coils and microfabricated using polymer-based thin film technologies. A flexible configuration of stacked thin film coils allows parallel and serial switching, thereby allowing to tune the coil's resonance frequency. The electrical properties of the fabricated coils were characterized and their power transmission performance was investigated in laboratory condition.

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Author

S. Kim; K. Zoschke; M. Klein; D. Black; K. Buschick; M. Toepper; P. Tathireddy; R. Harrison; H. Oppermann; F. Solzbacher

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0924-4247)

Published

2007

Language

EN

Field

Engineering (Physical Sciences)