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    题名: A Low-Power and Small Chip-area Multi-rate Human Body Communication DPFSK Transceiver for Wearable Devices
    作者: Shih, Horng-Yuan;Chang, Yu-Chuan;Yang, Cheng-Wei;Chen, Chieh-Chih
    关键词: Frequency shift keying;Baseband;Receivers;Transceivers;Mixers;Limiting;Power harmonic filters
    日期: 2019-08-27
    上传时间: 2020-07-27 12:10:31 (UTC+8)
    摘要: A low-power and small chip-area multi-rate human body communication (HBC) discontinuous-phase FSK (DPFSK) transceiver applied for wearable devices is presented. The transceiver is implemented in UMC 0.18 μm CMOS process with a small chip area of only 0.46 mm 2 . DPFSK modulation is adopted to reduce the hardware complexity of the transceiver. In the receiver, a direct-conversion front-end is adopted to eliminate polarization voltage of the electrode-skin interface. A delay line (DL)-based variable phase shifter used in the demodulator of the receiver is proposed for accomplishing of multi-rate DPFSK demodulation. In the transmitter, a digital frequency interpolator is adopted for achieving multi-rate DPFSK transmission. At a data rate of 1 Mb/s, the receiver and the transmitter consume the power of 1.79 mW and 700 μW , respectively. Therefore, energy consumption per received and transmitted bit are 1.79 nJ/bit and 0.7 nJ/bit, respectively.
    關聯: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS—II: EXPRESS BRIEFS 67(7), p.1234-1238
    DOI: 10.1109/TCSII.2019.2937746
    显示于类别:[電機工程學系暨研究所] 期刊論文

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