AbstractThe purpose of this research was to design, simulate and optimize a 4-band radio
frequency energy harvesting (RFEH) network circuit using the Keysight Technologies
Advanced Design System (ADS) design and simulation software used for low power
applications. The RF bands used for this study were Global System for Mobile
Communication (GSM) (950MHz, 1850MHz, 2150MHz) and Wireless Fidelity (Wi-
Fi) (5000MHz). Smith chart was employed to design the impedance matching circuit
to match the source impedance (Zin) and the load impedance (Zload) to minimize the
signal reflection (return loss) and maximize the power transfer. The impedances were
matched at the desired radio frequency (RF) operating frequency. A single, two and
three-stage voltage multipliers were simulated to obtain the output impedance at 4-band
RF frequencies with the source impedance set to 50 ohms. Simulation results showed
that the three-stage voltage multiplier produced the best outcomes, thus, was used for
this.....