RF energy harvesting for autonomous wireless sensor networks

Abstract

The system specifications of RF energy harvesting are outlined, indicating the general guideline of low power circuit and system design as well as the frequency set to be used in the system. Four frequency bands representing five wireless standards were chosen namely, GSM, DTV, Wi-Fi, Bluetooth and road tolling system. A harvesting system has been designed and simulated. A microstrip line antenna, RF-DC rectifier circuit and a voltage doubler circuit were designed. The simulations show promising preliminary results for the RF energy harvesting system compared to similar work in literature.