A Self-tracked High-dielectric Wireless Power Transfer System for Neural Implants

Das, R. and Heidari, H. (2020) A Self-tracked High-dielectric Wireless Power Transfer System for Neural Implants. In: 26th IEEE International Conference on Electronics Circuits and Systems (ICECS 2019), Genova, Italy, 27-29 Nov 2019, pp. 111-112. ISBN 9781728109961 (doi: 10.1109/ICECS46596.2019.8964953)

Abstract

This paper introduces a novel, efficient and long-range ( 0.5λ) wireless power transfer system for implantable neural devices. The operating principle of this system is based on the high-dielectric coupling, which occurs between an external lossless high-dielectric metamaterial (permittivity, ε r =100, loss tangent, tanδ = 0.0001) and lossy dielectric such as rat (ε r =54.1, conductivity, σ = 1.5 S/m). As magnetic field coupling occurs between two dielectric resonators, therefore, the rat (lossy dielectric) itself acts as a self-tracking energy source. The Ansoft HFSS simulation software was used to verify the concept. Initially, the rat was modelled as a phantom box and the resonant frequency was found to be 1.5 GHz. Then, for matching this intrinsic mode of the rat model, the external high-dielectric metamaterial designed accordingly to realize a highly efficient (η = 1×10 -3 ) and self-tracked wireless power system for neural implants.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Das, Dr Rupam and Heidari, Professor Hadi
• Authors: Das, R., and Heidari, H.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISBN: 9781728109961
• Copyright Holders: Crown Copyright © 2019
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

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• Organisation

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
303466		HERMES	Hadi Heidari	European Commission (EC)	824164	ENG - Electronics & Nanoscale Engineering