T Ajmal, University of Bedfordshire, UK
From: Wireless Sensor Systems, Session 6a (Resource management 2) Sensor in scarce resource management, energy harvesting cloud computing, 18 - 19 June 2012, London, UK
19 June 2012 Communications channel
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.