NDLI: A 2.4GHz ambient RF energy harvesting system with −20dBm minimum input power and NiMH battery storage

Content Provider	IEEE Xplore Digital Library
Author	Gudan, K. Chemishkian, S. Hull, J.J. Thomas, S.J. Ensworth, J. Reynolds, M.S.
Copyright Year	2014
Description	Author affiliation: Ricoh Innovations Corp., Menlo Park, CA, USA (Gudan, K.; Chemishkian, S.; Hull, J.J.) \|\| Univ. of Washington, Seattle, WA, USA (Ensworth, J.; Reynolds, M.S.) \|\| Duke Univ., Durham, NC, USA (Thomas, S.J.)
Abstract	We describe a radio frequency (RF) energy harvester and power management circuit that trickle charges a battery from incident power levels as low as -20dBm. We designed the harvester for the 2.4 GHz RF band to leverage the ubiquity of energy that is produced by Wi-Fi, Bluetooth, and other devices. This paper reports on the design and current status of the harvester and compares our performance to other published results. In this incident power regime, rectified voltages are low, so power management circuit operation in the 100mV regime is critical. This paper describes a novel rectenna design, boost converter, and battery charger for RF energy harvesting specifically tuned to this low-power regime. At -20dBm RF input power, the harvesting system (rectenna, boost converter, and battery charger) sources 5.8μJ into a rechargeable battery after 1 hour.
Starting Page	7
Ending Page	12
File Size	6849558
Page Count	6
File Format	PDF
ISBN	9781479946808
DOI	10.1109/RFID-TA.2014.6934191
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-08
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Battery chargers Low-Power Boost Converter Rectennas Capacitors Rectifiers Rectenna Batteries Energy harvesting RF Energy Harvesting Low-Power Battery Charger
Content Type	Text
Resource Type	Article

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