This project involved the design and simulation of a high efficiency multi-band RF rectifier operating at FM, DTV, and 5G frequency bands. Keysight ADS was used to optimize the rectifier topology, impedance matching networks, and RF-to-DC conversion efficiency under low input power conditions.

Objectives

• Design a multi-band RF rectifier for ambient RF energy harvesting.

• Optimize impedance matching at 100 MHz, 600 MHz, and 3.5 GHz.

• Improve RF-to-DC power conversion efficiency at low input power. 

Outcomes & Contributions

• Achieved PCE values of 76.31%, 74.20%, and 49.14% at −10 dBm for FM, DTV, and 5G bands.

• Obtained peak efficiencies of 79.97%, 78.28%, and 60.28%.

• Designed voltage doubler rectifiers for FM/DTV and a single-series rectifier for 5G.

• Demonstrated strong impedance matching and stable DC output performance. 

Technical Details & Skills

• Technique: Multi-band RF rectifier design and impedance matching

• Tools: Keysight ADS, Harmonic Balance Simulation

• Skills: RF energy harvesting, rectifier design, impedance matching, PCE analysis

• Field: RF Systems, Microwave Engineering, Wireless Power Transfer