An UHF rectifier with 100% bandwidth based on a ladder LC impedance matching network

In this paper an efficient for low power input, low-cost and low-complexity rectifier is designed and simulated including component and layout parasitics. The rectifier consists of a charge pump and a ladder LC matching network. It has also a wideband RF-dc conversion efficiency which remains constant within ±2% from 300 MHz to 900 MHz. The rectifier was based on two commercial off-the-shelf Schottky diodes and low cost paper substrate was used for the layout. Three ladder LC impedance matching were simulated and it was verified that by increasing the number of LC sections to three, it is possible to cover the desired frequency bandwidth.