On the Design of a RF Schottky Diode Rectifier for Energy Harvesting Applications

This paper reports on the design of a radio frequency rectifier for energy harvesting applications. The design method comprises the measurement of small-signal S-parameters of a Schottky diode at different DC levels and the use of a numerical approximation method to characterize a large-signal diode equivalent circuit. Using this model a RF rectifier is designed and fabricated to operate at 1.9 GHz. The designed rectifier consists on a single serial diode topology with radial stubs to filter the harmonics produced by the diode.