Analyzing Simulation and Measurement Results for Single Layer Dickson Rectifier Topology

Abstract

Energy harvesting has emerged as a promising alternative power solution by enabling the conversion of ambient electromagnetic energy into usable electrical power. This capability is particularly valuable for low-power electronic devices, where reducing or eliminating dependence on conventional batteries can significantly enhance operational lifetime and reliability. In typical RF energy-harvesting systems, a microstrip antenna collects radio-frequency signals from the surrounding environment, and the received energy is transferred to a rectifier circuit that converts it into DC power. In this study, an RF energy-harvesting module based on the Dickson charge-pump topology is designed and analyzed for efficient operation at 900 MHz. The entire structure is implemented on an FR-4 substrate, which offers a cost-effective and widely accessible platform despite its moderate dielectric losses at microwave frequencies. The rectifier circuit employs the HSMS-285C Schottky diode, chosen for its low threshold voltage and high sensitivity, enabling efficient rectification even at low input power levels. To ensure maximum power transfer from the antenna to the rectifier, the matching network integrates both discrete L–C components and microstrip stubs, enabling fine-tuning of impedance characteristics across the operating band. Comprehensive simulations of the antenna, matching network, and rectifier stages are carried out using Keysight ADS, allowing accurate prediction of RF-to-DC conversion performance under various input power conditions. The resulting DC output from the rectifier is suitable for powering ultra-low-power electronic devices—including calculators, wristwatches, wireless sensor nodes, Bluetooth headsets, and similar portable systems—or for recharging small batteries and supercapacitors to extend their operational lifetime. The simulation results demonstrate that the proposed design efficiently converts ambient RF energy into usable DC power, highlighting its strong potential for practical integration into next-generation low-power and energy-autonomous electronic applications.

Affiliated Institutions

• Süleyman Demirel University TR

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