A highly efficient power harvester with wide dynamic input power range for 900 MHz wireless power transfer applications
This work demonstrates the design of an adaptive reconfigurable rectifier to address the issue of early breakdown voltage in a conventional rectifier and extends the rectifier's operation for wide dynamic input power range. A depletion-mode field-effect transistor has been introduced to operate as a switch and compensate at low and high input power levels for rectifier. This design accomplishes 40% of RF-DC power conversion efficiency over a wide dynamic input power range from -10 dBm to 27 dBm, while exhibiting 78% of peak power efficiency at 22 dBm. The power harvester is designed to operate in the 900 MHz ISM band and suitable for Wireless Power Transfer applications.
|Keywords||Rectifier, Schottky diode, wireless power transfer, wirless power sensor|
|Conference||16th Mediterranean Microwave Symposium, MMS 2016|
Almohaimeed, A.M., Yagoub, M.C.E., & Amaya, R. (2017). A highly efficient power harvester with wide dynamic input power range for 900 MHz wireless power transfer applications. In Mediterranean Microwave Symposium. doi:10.1109/MMS.2016.7803790