Title :
Studying the Feasibility of Energy Harvesting from Broadcast RF Station for WSN
Author :
Sogorb, T. ; Llario, J.V. ; Pelegri, J. ; Lajara, R. ; Alberola, J.
Author_Institution :
Dept. of Electron. Eng., Univ. Politec. of Valencia, Gandia
Abstract :
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.
Keywords :
amplitude modulation; low-power electronics; radio broadcasting; television broadcasting; uninterruptible power supplies; wireless sensor networks; TV emissions; WSN; amplitude modulated radio signal; broadcast RF station; capacitor; energy harvesting; frequency 1.584 MHz; low duty cycle pulsed-load; radio emissions; rectifier; ultra-low power stand-alone nodes; uninterrupted energy flow; voltage multiplier; wireless sensor networks; Batteries; Broadcast technology; Capacitors; Radio broadcasting; Radio frequency; Radio transmitters; Rectennas; Rectifiers; TV broadcasting; Wireless sensor networks; RF energy; harvesting energy; wireless sensor;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547254
