Stevenage: The Institution of Engineering and Technology
摘要:
A 400 MHz sub-hundred microwatt intrabody communication (IBC) receiver front-end suitable for OOK, ASK and FSK modulation schemes and applied for personal health wearable/implantable devices is presented. 68.4 μW of static power, 24.1 dB of gain, at least 18 dB fundamental above distortions and 167x118 μm2 of core size are achieved in 0.18 μm CMOS Technology. 在此篇論文我們實現了一個以人體為傳輸介質應用於穿戴式或植入式生理訊號成測器之超低功耗接收器前端電路。由於以人體為傳輸介質,因此傳翰的路徑損耗會比空氣中小許,大幅降低對接收器前端電路靈敏度之要求。電路中電晶體皆操作在深弱反轉區,在無輸入訊號下,電路之靜態電流消耗僅35.4 uA,此時操作電壓為1. 8V亦靜態功率消耗僅68 .4 uW 。當操作在400MHz輸入訊號下,在僅消耗86 .4 uW 下達到24 .1 dB之電壓增益表現、大於18 dB之訊號、三階失真比與大於200 KHz之輸出頻寬。此篇論文被列入當期IET Electronics Letters 之highlight articles 。