NDLI: EM- and piezo-scavengers: Two useful solutions in highly humanized scenarios toward a "greener world"

Content Provider	IEEE Xplore Digital Library
Author	Costanzo, A. Roselli, L.
Copyright Year	2012
Description	Author affiliation: University of Perugia, Perugia, Italy (Roselli, L.) \|\| University of Bologna, Bologna, Italy (Costanzo, A.)
Abstract	This contribution discusses different aspects related to EM- and piezo-scavengers from ambient energy that are very promising as power suppliers of the latest evolution of ultra-low power electronic systems. First challenges in designing circuits and systems for microwave ambient energy harvesting are discussed. A design flow, including the RF/Microwave receivers and the base-band conversion blocks is presented. Power densities as low as few $μW/cm^{2}$ are targeted as realistic sources to be scavenged by a highly efficient multi-band resonant rectenna. Predicted and measured results in stationary regime are presented and the measured converted energy is also assessed. Second, a conventional piezoelectric scavenger is tested as a power source of a nomadic RFID-reader adopted for novel localization system approach. The latter is intended as an example of multidisciplinary (RFID-NFC, ultra-low power systems, short range wireless power transfer, organic technologies and so on), fully autonomous (energy scavenger on board, battery-less), wirelessly empowered (multitude of passive tags is energized by autonomous reader), evolutionary electronic system toward a “greener world”.
Starting Page	15
Ending Page	18
File Size	659551
Page Count	4
File Format	PDF
ISBN	9781467317771
e-ISBN	9781467317801
DOI	10.1109/IMWS.2012.6215829
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-10
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Antenna measurements Dielectric constant Rectennas Tiles energy harvestyng RFID WPT Localization Radiofrequency identification green electronics
Content Type	Text
Resource Type	Article

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