An efficient wireless power link for neural implant

Author

Jegadeesan, Rangarajan ; Yong-Xin Guo ; Rui-Feng Xue ; Minkyu Je

Author_Institution

Nat. Univ. of Singapore, Singapore, Singapore

fYear

2012

fDate

21-23 Nov. 2012

Firstpage

122

Lastpage

124

Abstract

An efficient resonant tuned wireless power transfer (WPT) link using inductive coupling has been proposed for the neural implant application in this work. The power link is optimized for an operating frequency of 10 MHz using coil, load and frequency optimization. The lossy tissue model was used to mimic the power loss in tissue and the simulated (HFSS) peak SAR values were within the allowed limit for 20 mW power received at implant. The power transfer efficiency for implant coil sizes of 250 mm² for a power transmit range of 10 mm was simulated using HFSS to be around 82%.

Keywords

biological tissues; biomedical electronics; coils; neurophysiology; optimisation; prosthetics; efficient resonant tuned wireless power transfer link; efficient wireless power link; frequency 10 MHz; frequency optimization; implant coil sizes; inductive coupling; load optimization; lossy tissue model; neural implant application; power 20 mW; power loss; power transfer efficiency; power transmit range; Coils; Couplings; Implants; Receivers; Resonant frequency; Scalp; Wireless communication; inductive coupling; neural implant; resonant tuning; wireless power transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on

Conference_Location

Singapore

Print_ISBN

978-1-4673-2303-1

Type

conf

DOI

10.1109/RFIT.2012.6401634

Filename

6401634