Studying the Feasibility of Energy Harvesting from Broadcast RF Station for WSN

In this paper, we discuss the feasibility of extracting energy from broadcast RF signals, mainly from TV or radio emissions. This method would avoid the dedicated RF energy suppliers that use some wireless sensor networks, which would be especially useful in ultra-low power stand-alone nodes (outdoo...

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Bibliographic Details
Published in2008 IEEE Instrumentation and Measurement Technology Conference pp. 1360 - 1363
Main Authors Sogorb, T., Llario, J.V., Pelegri, J., Lajara, R., Alberola, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2008
Subjects
Batteries
Broadcast technology
Capacitors
harvesting energy
Radio broadcasting
Radio frequency
Radio transmitters
Rectennas
Rectifiers
RF energy
TV broadcasting
wireless sensor
Wireless sensor networks
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ISBN9781424415403
1424415403
ISSN1091-5281
DOI10.1109/IMTC.2008.4547254

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Summary:In this paper, we discuss the feasibility of extracting energy from broadcast RF signals, mainly from TV or radio emissions. This method would avoid the dedicated RF energy suppliers that use some wireless sensor networks, which would be especially useful in ultra-low power stand-alone nodes (outdoor). The energy flow is uninterrupted and a capacitor can be slowly charged by means of a rectifier and voltage multiplier. An average current up to 8 muA has been obtained from a 1.584 MHz amplitude modulated radio signal. Preliminary results indicate that the capacitor could power a pulsed-load with a very low duty cycle.
ISBN:9781424415403
1424415403
ISSN:1091-5281
DOI:10.1109/IMTC.2008.4547254