Analysis of Dickson Voltage Multiplier for RF Energy Harvesting

摘要

This paper presents the RF energy harvesting parameters depending on the efficiency and the output DC voltage for input powers between -35dBm to 25dBm. In this study, multi-stage Dickson voltage multiplier (DVM) from 2 to 6-stages are designed and implemented with various load resistance i.e. 20-50-100-500 kΩ and different matching topology such L-matching, T-matching, and Pi-matching are applied, and also two Schottky diode models (e.g. HSMS-2852 and HSMS-2822) are used to design the DVM to see their effect on the efficiency. All the simulations are done by using the Advance Design System (ADS) 2017. The target frequency selected in the design is 915 MHz for Industrial, Scientific and Medical Radio Band (ISM band). The simulation results show that high efficiency and high output DC voltage are obtained for the DVM circuit design with matching compared to the DVM circuit without matching for low input power.