The Design of A Novel Broadband Rectifier for Radio Frequency Energy Harvesting System

A compact and broadband rectifier is proposed for radio frequency energy harvesting (RFEH) system. This rectifier is constructed using the voltage-doubler configuration and the Schottky diode HSMS 2862 is chosen as the rectifying device. The proposed rectifier has advantages for its compactness and low complexity. For validation, the proposed broadband rectifier is simulated and measured. The results show that the power conversion efficiency (PCE) exceeds 50% from 1.91 to 3.32 GHz (fractional bandwidth 53.9%) at a 14.8-dBm input power. The peak PCE is 74.3% at 2.2 GHz.