Abstract
In this paper, an RF energy harvester with a wide input power range and low reverse leakage current is proposed with two versions of an off-chip matching network and an on-chip matching network, a wide dynamic range of 31.24 dB is achieved by incorporating the complementary diode structure in the final stage of the rectifier. Additionally, a voltage limiter is designed to provide a highly accurate 3.3 V limiting voltage and a reverse leakage current of 1.368 uA. Simulation results demonstrate that the off-chip matched version achieves a high power harvesting efficiency (PHE) of 57.75% and a wide input power range of 16.82 dB. The on-chip matched version exhibits a high PHE of 32.02% and a wide input power range of 11.48 dB, with a reverse leakage current of 1.398 uA for both versions.