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Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
Published on: August 27, 2021
Optimal operating frequency in wireless power transmission for implantable devices
Ada S Y Poon1, Stephen O'Driscoll, Teresa H Meng
1Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, IL 61801 USA. poon@uiuc.edu
Abstract:
This paper examines short-range wireless powering for implantable devices and shows that existing analysis techniques are not adequate to conclude the characteristics of power transfer efficiency over a wide frequency range. It shows, theoretically and experimentally, that the optimal frequency for power transmission in biological media can be in the GHz-range while existing solutions exclusively focus on the MHz-range. This implies that the size of the receive coil can be reduced by 10(4) times which enables the realization of fully integrated implantable devices.
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