A Low-Power and Small Chip-area Multi-rate Human Body Communication DPFSK Transceiver for Wearable Devices

doi:10.1109/TCSII.2019.2937746

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Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/120998

Title:	A Low-Power and Small Chip-area Multi-rate Human Body Communication DPFSK Transceiver for Wearable Devices
Authors:	Shih, H. Y.;Chang, Y.-C.;Yang, C.-W.;Chen, C.-C.
Keywords:	Frequency shift keying , Baseband ,Receivers;Transceivers;Mixers;Limiting;Power harmonic filters
Date:	2019-08-27
Issue Date:	2021-08-24 12:10:54 (UTC+8)
Abstract:	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.
Relation:	IEEE Transactions on Circuits and Systems II: Express Briefs,67(7),p.1234–1238
DOI:	10.1109/TCSII.2019.2937746
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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