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JSSC 2021第9期RF & Wireless0.18-µm

A 25-nW Radio Platform With an Internal Wake-Up Receiver for Smart Contact Lens

首款集成唤醒接收器的智能隐形眼镜无线电平台,功耗仅25nW。
0.18-µm CMOS, 2.5 nW standby power, 346/433 MHz uplink/downlink
智能隐形眼镜唤醒接收器无线充电低功耗单环路天线
单环路天线实现RF传输和无线充电
基线跟踪偏移控制环路增强噪声环境下的唤醒信号检测
集成唤醒接收器和无线充电功能的智能隐形眼镜系统
Abstract
The human eye has been considered to be a promising platform for real-time diagnosis of various bio- markers in tears. The smart contact lens (SCL), as a device which directly accesses surface of human eye, is a miniatur- ized autonomous system integrating all the required functions on the surface of a thin film. This article presents the first implementation of a set of radio including a wake-up receiver required for SCL. The system performs RF transmission upon wake-up call using a single loop a