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Open AccessFeature PaperArticle

Reconfigurable RF Energy Harvester with Customized Differential PCB Antenna

1
Department of Sciences and Methods for Engineering — DISMI—University of Modena and Reggio Emilia, via G.Amendola, 2, 42122 Reggio Emilia, Italy
2
Department of Engineering “Enzo Ferrari” — DIEF—University of Modena and Reggio Emilia, via P. Vivarelli, 10/1, 41125 Modena, Italy
3
ASK Industries, via P. Togliatti 46/a 42020 Montecavolo (RE), Italy
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Domenico Zito
J. Low Power Electron. Appl. 2015, 5(4), 257-273; https://doi.org/10.3390/jlpea5040257
Received: 24 June 2015 / Revised: 3 November 2015 / Accepted: 24 November 2015 / Published: 27 November 2015
(This article belongs to the Special Issue Low-Power Systems on Chip Enabling Internet of Things)
In this work, a Radio Frequency (RF) Energy Harvester comprised of a differential Radio Frequency-to-Direct Current (RF-DC) converter realized in ST130 nm Complementary Metal-Oxide-Semiconductor (CMOS) technology and a customized broadband Printed Circuit Board (PCB) antenna with inductive coupling feeding is presented. Experimental results show that the system can work with different carrier frequencies and thanks to its reconfigurable architecture the proposed converter is able to provide a regulated output voltage of 2 V over a 14 dB of RF input power range. The conversion efficiency of the whole system peaks at 18% under normal outdoor working conditions. View Full-Text
Keywords: RF energy harvester; reconfigurable RF-DC converter; differential antenna RF energy harvester; reconfigurable RF-DC converter; differential antenna
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Bertacchini, A.; Larcher, L.; Maini, M.; Vincetti, L.; Scorcioni, S. Reconfigurable RF Energy Harvester with Customized Differential PCB Antenna. J. Low Power Electron. Appl. 2015, 5, 257-273.

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