Energy harvesting of spurious emissions of compact fluorescent lamps for home monitoring applications

This paper proposes a novel harvester for sensors powering by spurious electromagnetic emissions from compact fluorescent lamps. The proposed device is based on a magnetic coupling and consists of a resonant loop and an RF-to-DC rectifier. Experimental results are reported and discussed. It is shown that up to 0.61 mW can be generated from a 30 W compact fluorescent lamp, thus demonstrating that the proposed harvester is an optimum candidate for powering low-power sensors.