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A Sub-10-pJbit 5-Mbs Magnetic Human Body Communication Transceiver Jiwoong Park
提出一种超低功耗磁人体通信收发器,实现5Mb/s数据传输,能耗低于10pJ/bit。
40MHz载波频率,Q值~50,发射器18.56µW,接收器6.3µW,7.15pJ/bit,4.7pJ/bit
磁人体通信超低功耗OOK调制动态频率调谐亚阈值偏置
▸单级功率振荡器生成OOK调制磁场
▸同步注入锁定启动电路实现动态频率调谐
▸亚阈值偏置动态阈值放大器和包络检测器
Abstract
This article presents a transceiver designed to
exploit the low path loss offered by magnetic human body
communication (mHBC) toward ultra-efficient body area net-
working. A single-stage power oscillator is used to efficiently
generate on–off-keying (OOK) modulated magnetic fields via
body-worn coils that act as both resonant and magnetic-field-
generating elements. To de-couple improved path loss yet reduced
data-rate tradeoffs with increasing Q of coils, a synchronous
injection-locked kick-start