A Power Converter Circuit of Co-Planar Waveguide RF Harvester Antenna for Low Power Wireless Applications

This research is focusing on a performance of a single-stage AC-DC power converter circuit for a Wi-Fi energy harvesting system. The system capable of collecting radio frequency energy and converting it into direct current supply. A co-planar waveguide antenna is designed to collect the incoming ambient RF energy source. The output from antenna is connected to a converter circuit for rectification process. The proposed circuit combines impedance matching and voltage boosting circuit that act as a harvester circuit. The simulation result shows that the simple harvester circuit can boost up voltage to 1.9 V dc with conversion efficiency of 61.4%.