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Abdullah's first IEEE transactions paper

posted Jan 11, 2018, 12:53 AM by Khaled salama
Abdullah started his PhD with a bang publishing at the most prestigious microwave circuits journal (IEEE Transactions on Microwave Theory and Technique). In this work we demonstrated an enhanced RF-to-dc converter that selectively limits the conductions of the rectifying transistors depending on the RF power level. As a consequence, the proposed architecture limits the reverse current without degrading the forward current and can operate efficiently for a wider range of RF input power.When operating at the ISM band 433 MHz with a 100-kohm load, the measurement results show a PCE of 86% and a sensitivity of −19.2 dBm, and a PCE of 66% and a sensitivity of −18.2 when operating at the UHF band. The proposed designs provide a high PCE, high sensitivity, wide DR, less sensitivity to the load compared to the state of the art as shown below.
More details can be found at
Abdullah Almansouri, Mahmoud Ouda and  Khaled N. Salama,A CMOS RF-to- DC Power Converter with 86% Efficiency and -19.2dBm Sensitivity”, IEEE Transactions on Microwave Theory and Techniques, 2018 doi:10.1109/TMTT.2017.2785251

Peak PCE verses 1-V sensitivity for different architectures operating
at ISM and UHF bands.