Efficient Differential Reconfigurable Harvester for WSN Applications

This work shows the implementation of a Differential Reconfigurable Harvester (DRH) to improve the overall Power Conversion Efficiency (PCE) in Single-ended of a Reconfigurable Harvester (SRH) to work over a wide-ranging requirement of input power. The DRH structure has been proposed to enhance the PCE to operate at 915 MHz for (ISM) band which uses mainly for Wireless Sensor Network (WSN) devices. The DRH topology accomplishes 40% of PCE over a wide input power range from -12 dBm to 29 dBm and its peak efficiency is around 85%, the accomplished result has been compared to SDH configuration which results in gaining of 20% of PCE.