Title :
An implantable system for intracranial neural recording applications
Author :
Yilmaz, G. ; Dehollain, C.
Author_Institution :
RFIC Res. Group, Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland
Abstract :
This article presents integration of a wireless power transmission and bidirectional data communication system for implantable neural recording applications. Wireless power transfer is realized by means of magnetic coupling at 10 MHz achieving 36% efficiency. Downlink communication at 1 Mbps is realized on the same frequency as the wireless power transmission by changing the amplitude of the source signal. Uplink communication at 1.8 Mbps is performed at MICS band by means of an integrated transmitter and a discrete receiver. Design and implementation of the entire system has been explained and practical integration issues have been discussed.
Keywords :
biomedical telemetry; body sensor networks; neurophysiology; prosthetic power supplies; radio receivers; radio transmitters; radiofrequency power transmission; telemedicine; MICS band; bidirectional data communication system; discrete receiver; downlink communication frequency; frequency 10 MHz; implantable system design; implantable system implementation; implantable system practical integration issues; intracranial neural recording application; magnetic coupling efficiency; source signal amplitude; transmitter; uplink communication; wireless power transmission frequency; Clocks; Coils; Downlink; Implants; Uplink; Voltage-controlled oscillators; Wireless communication;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2014 IEEE
Conference_Location :
Lausanne
DOI :
10.1109/BioCAS.2014.6981749
