Wireless data and power transfer of an optogenetic implantable visual cortex stimulator
Wireless data and power transfer of an optogenetic implantable visual cortex stimulator
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光遗传学植入式视觉皮层刺激器的无线数据和电力传输
DOI：
10.1109/embc.2015.7320250
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
P. Degenaar
中科院分区：
文献类型：
--
作者：
Nabeel Fattah;S. Laha;D. Sokolov;G. Chester;P. Degenaar
本文利用离体猪组织模拟物，分别在ISM 2.4 GHz和13.5 MHz频段，对一种新型光遗传学视皮层植入系统的无线数据和能量传输进行了实验研究。观察到的数据速率为120 kbps，在水和猪肉中，对于高达35 mm的厚度，数据没有丢失。为了提高植入物的功率水平，一个E类功率放大器是单独设计和模拟的发射端，并具有约223 mW的输出功率与效率为81.83%。对于猪肉组织介质，考虑到发射器和接收器线圈之间的距离为5 mm，在接收器处的传输功率被测量为66.80mW，耦合系数为~0.8。这满足了视觉皮层植入物的功率需求。
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.