Wireless data and power transfer of an optogenetic implantable visual cortex stimulator

Annu Int Conf IEEE Eng Med Biol Soc. 2015 Aug:2015:8006-9. doi: 10.1109/EMBC.2015.7320250.

Abstract

In this paper, the wireless data and power transfer for a novel optogenetic visual cortex implant system was demonstrated by using pork tissue mimic in-vitro at the ISM 2.4 GHz and 13.5 MHz frequency band respectively. The observed data rate was 120 kbps with no loss in data for up to a thickness of 35 mm in both water & pork. To increase the power level of the implant a Class E power amplifier is separately designed and simulated for the transmitter end and has an output power of around 223 mW with an efficiency of 81.83%. The transferred power at the receiver was measured to be 66.80 mW for the pork tissue medium considering a distance of 5 mm between the transmitter and the receiver coils, with a coupling coefficient of ~0.8. This serves the power requirement of the visual cortex implant.

MeSH terms

  • Amplifiers, Electronic
  • Animals
  • Equipment Design
  • Optogenetics
  • Red Meat
  • Swine
  • Telemetry
  • Visual Cortex*
  • Wireless Technology