Dual voltage differentially-driven rectifier for rectenna application

This research discusses the design of rectifier circuit in rectenna system using dual voltage differentially-driven rectifier method which work at 2.45 GHz WLAN application. The research also discusses the circuit configuration, method, diode selection and the right load so that the rectifier for this rectenna system can work at low power level while producing high DC voltage output. In the simulation, rectifier has bandwidth 200 MHz at range frequency 2.35-2.55 GHz, reflection coefficient -24.37 and insertion loss -0.47 dB at frequency 2.45 GHz. Measurement result shows that the rectifier has 400 MHz bandwidth at range frequency 2.16-2.56 GHz, reflection coefficient -22.64 and insertion loss -2.65 at frequency 2.45 GHz. The rectifier has DC output voltage 0.543 volt.