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A 5.3 #x00B5;W contact monitoring sensor with BCC electrode and MICS antenna for energy efficient unified WBAN transceiver

机译:具有BCC电极和MICS天线的5.3μW接触监控传感器,用于节能统一WBAN收发器

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A low power contact monitoring sensor for an energy efficient implantable and wearable wireless body-area-network (WBAN) transceiver is implemented in 0.18 µm CMOS process. The transceiver utilizes 30 – 70 MHz for the body channel communication (BCC) and 402 – 405 MHz for the medical implant communication service (MICS) with a pattern-printed electrode interface for operating as both BCC electrode and MICS antenna. The contact monitoring sensor adopts the reflection wave detection technique to compensate for the channel quality degradation due to the variation of the contact distance between the electrode and the human body. The reflection wave detection is achieved by an energy efficient envelope detector and a 2-bit ADC with a programmable reference voltage. It leads to mitigate both the linearity and sensitivity requirements of the receiver front-end by more than 10 dB. As a result, with the power consumption of 5.3 µW, the proposed contact monitoring sensor reduces the power consumption of the LNA more than 70 %.
机译:用于节能可植入和可佩戴无线机体区域网络(WBAN)收发器的低功率接触监控传感器在0.18μmCMOS过程中实现。收发器利用30 - 70MHz的主信道通信(BCC)和402-405MHz,用于医疗植入物通信服务(MIC),其具有图案印刷电极接口,用于作为BCC电极和MIC天线的操作。由于电极和人体之间的接触距离的变化,接触监视传感器采用反射波检测技术来补偿信道质量劣化。反射波检测通过节能包络检测器和具有可编程参考电压的2位ADC来实现。它导致接收器前端的线性度和灵敏度要求减轻10 dB。结果,随着5.3μW的功耗,所提出的接触监测传感器将降低LNA的功耗超过70%。

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