NDLI: A −30 dBm sensitive ultra low power RF energy harvesting front end with an efficiency of 70.1% at −22 dBm

Content Provider	IEEE Xplore Digital Library
Author	Vamsi, Nagaveni Kaddi, Pramod Dutta, Ashudeb Singh, Shiv Govind
Copyright Year	2015
Description	Author affiliation: Dept. of Electrical Engineering, IIT Hyderabad, Andhra Pradesh, India (Vamsi, Nagaveni; Kaddi, Pramod; Dutta, Ashudeb; Singh, Shiv Govind)
Abstract	A high Q matching network is being proposed for an RF energy scavenging system that is highly efficient and ultra low power sensitive. The applications of the presented technique are passive next generation wearable devices for remote health care monitoring systems and wireless sensor nodes with usual input power ranging from 1μm to 100μW from 4W EIRP source. The rectifier can rectify an equivalent input voltages as low as 10mV from antenna and is ultra low power sensitive with 1μW(−30 dBm) rectifying capability. The proposed RF energy harvesting scheme achieves better rectifier efficiency of 70.1% at −22 dBm input power (30m distance from 4W EIRP source) compared to existing schemes in literature at 953-MHz to drive load resistance 226KΩ,. The proposed high Q matching technique achieves a better drive strength as it is capable to drive higher load. The RF energy harvesting system is implemented in a standard UMC 0.18μm CMOS technology and generates 1 V regulated output voltage. The results are verified using schematic and post layout simulations.
Starting Page	328
Ending Page	332
File Size	1013481
Page Count	5
File Format	PDF
ISSN	21641706
e-ISBN	9781467390941
DOI	10.1109/SOCC.2015.7406977
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-08
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Energy harvesting Wireless sensor networks Inductors Resistance CMOS integrated circuits Layout Lowdrop Out Regulator(LDO) Wireless Sensor Network (WSN) Power Conversion Efficiency (PCE) Ultra High Frequency(UHF) Radio Frequency Identification (RFID) Effective Isotropic Radiated Power(EIRP) Power On Reset(POR)
Content Type	Text
Resource Type	Article

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