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Mahmoud demonstrates a self Biased energy harvesting module @TCASII

posted Aug 31, 2016, 1:28 PM by Khaled salama

WIRELESS power transfer (WPT) applications range from powering battery-less wireless sensors, RFIDs, and implantable devices, to  the higher scale of space-based solar cells and wirelessly charged electric vehicles. Among this myriad of battery-less devices, the wireless power receiver is considered the linchpin for any given WPT system. A prototype is designed for UHF 433MHz RF power-harvesting applications and is implemented using 0.18µm CMOS technology. It demonstrates an improvement of more than 40% in the rectifier power conversion efficiency (PCE) and an input power range extension of more than 50% relative to the conventional  cross coupled rectifier. A sensitivity of -15.2dBm (30µW) input power for 1V output voltage and a peak power-conversion efficiency of 65% are achieved for a 50kΩ load.

The work is in collaboration with Prof. Khalil, of the Electroscience lab, Ohio State Univeristy and is presented in details at IEEE Transactions on Circuits and Systems II: Express Briefs

IEEE Transactions on Circuits and Systems II: Express Briefs, 2016 

Congrats Mahmoud!