Title :
Design of a compact RF energy harvester for wireless sensor networks
Author :
Ajmal, T. ; Jazani, D. ; Allen, B.
Author_Institution :
Centre for Wireless Res., Univ. of Bedfordshire, Luton, UK
Abstract :
We present a method for powering electronic devices from ambient Radio Frequency (RF) signals. Our proposed design of RF energy harvester is made of a compact ferrite rod antenna together with the electronics necessary for converting the received signal into a form that can directly replace batteries. We show that our device can, in principal, power a wireless sensor node from ambient medium wave transmissions so long as the node is within 120 km of a 150kW transmitter.
Keywords :
antennas; cells (electric); energy harvesting; radio transmitters; wireless sensor networks; ambient medium wave transmissions; compact RF energy harvester design; compact ferrite rod antenna; electronic devices; radio frequency signals; received signal conversion; wireless sensor networks; wireless sensor node; Energy Harvesting; loop antenna; medium waves; wireless sensor networks;
Conference_Titel :
Wireless Sensor Systems (WSS 2012), IET Conference on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-625-3
DOI :
10.1049/cp.2012.0600
