Optimal operating frequency in wireless power transmission for implantable devices.
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.
Poon
Ada S Y
AS
Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, IL 61801 USA. poon@uiuc.edu
O'Driscoll
Stephen
S
Meng
Teresa H
TH
D000818:Animals; D003198:Computer Simulation; D017076:Computer-Aided Design; D011211:Electric Power Supplies; D055590:Electromagnetic Phenomena / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008954:Models, Biological; D019736:Prostheses and Implants; D011846:Radio Waves; D013686:Telemetry / Q000295:instrumentation*