TitleHuman Body Channel Energy Harvesting Scheme with-22.5 dBm Sensitivity 25.87% Efficiency Threshold-Compensated Rectifier
AuthorsWang, Jiayi
Zheng, Yongan
Wang, Shi
Liu, Maoqiang
Liao, Huailin
AffiliationPeking Univ, Inst Microelect, Key Lab Microelect Devices & Circuits MOE, Beijing 100871, Peoples R China.
KeywordsDESIGN
MODEL
RF
Issue Date2015
Publisher2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
Citation2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS).Lisbon, PORTUGAL,2015/1/1.
AbstractA novel human body channel (HBC) energy harvesting scheme for body sensor networks (BSNs) is proposed in this paper. Human body channel is utilized innovatively as energy transmission medium to reduce the transmission loss dramatically and eliminate influence of shadow effect. Further, a high sensitivity and efficiency rectifier is presented by introducing an effective threshold compensation circuit. Experimental results of the energy harvesting scheme show that it can supply 2-mu W power typically at -5 dBm transmitted power and up to 19.5-mu W at +7 dBm transmitted power by 30 cm distance of human body channel. The sensitivity of the proposed rectifier is -22.5 dBm with 1-V output voltage. When offering 5-mu A output current, the rectifier can achieve 25.87% efficiency. The rectifier is implemented in a standard 0.18-mu m CMOS process and operating frequency is 145 MHz.
URIhttp://hdl.handle.net/20.500.11897/423492
ISSN0271-4302
DOI10.1109/ISCAS.2015.7168577
IndexedEI
CPCI-S(ISTP)
Appears in Collections:信息科学技术学院

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