DOI: 10.1109/TMTT.2024.3397389   IEEEXplore: https://ieeexplore.ieee.org/document/10538058

Schottky Diode-based RF Energy Harvester Including 2 Parallel, Inductively-matched Rectifiers and a Power Management IC (PMIC)

889 MHz

Inductive matching for each diode including a lumped inductor and a short-circuited stub reduce ohmic losses. The PMIC optimizes the load on the rectifiers based on the input power level.

Powering ultralow power (ULP) devices.

29% efficient at -20 dBm RF input power; 63% efficient at 0 dBm. 186 mV Vload at the diode for -20 dBm RF Input Power; 324 nW at 1.8 VDC at the PMIC for -20 dBm RF Input Power.