Mohamed Ahmed Mohamed Elnozahy

Professor at Electronics and Communications Engineering

Career Information

Academic Information

Brief

Mohamed El-Nozahi received the B.Sc. and M.Sc. degrees, both in electronics and communications engineering, from Ain Shams University, Cairo, Egypt, in 2000 and 2004, respectively. He received the Ph.D. degree from Texas A&M University in 2010. He was a Design Intern with Texas Instruments, Dallas, TX, and with Qualcomm, San Diego, CA. He was with Marvell Semiconductor, Santa Clara, CA, Vidatronic Inc., College Station, TX, and Analog Devices, Egypt. He is currently a Professor with the Electronics and Communications Engineering Department, Ain Shams University and with Pearl Semiconductor, Egypt.
His experience covers RF/mm-wave, power management circuits, and timing solutions. Mohamed has contributed to various projects that went for production. Mohamed has more than 50 publications in top-tier conferences and journals, and 10 granted US/worldwide patents.

Publications

Journals and Transactions:
- R. Onsy, M El-Nozahi, H. Ragai “Design-Aware Parasitic-Aware Simulation Based Automation and Optimization of Highly Linear RF CMOS Power Amplifiers,” in Electronics, Jan 2023.
- N. Mansour, M El-Nozahi, H. Ragai “Parasitic-Aware Simulation-Based Optimization Design Tool for Current Steering VGAs,” in Electronics, Jan 2023.
- Y. Ahmed, A. Ezz, M El-Nozahi, “A 24–47-GHz Resonant Multiband T/R Switch,” in IEEE Microwave and Wireless Components Letters, May 2021.
- M. K. Bahry, M El-Nozahi, E. Hegazi, “An all-digital low ripples capacitive DC-DC converter with load tracking controller,” in Integration, June 2018.
- M. I. Ibrahim, M. Gamal, M El-Nozahi, A. Safwat, H. El-Hennawy, “Design and Performance Analysis of a Miniature, Dual-Frequency, Millimeter Wave Linear Phased Array Antenna,” in IEEE Transactions on Antennas and Propagation, Dec. 2017.
- O. El-Aassar, M El-Nozahi, H.F. Ragai, “Loss Mechanisms and Optimum Design Methodology for Efficient mm-waves Class-E PAs,”in IEEE Transactions of Circuits and Systems I, July 2016.
- M. Swilam, M. El-Nozahi, E. Hegazi, “Open-Loop Fractional Division Using a Voltage-Comparator-Based Digital-to-Time Converter,” in IEEE Transactions of Circuits and Systems II, Jan. 2016.
- J. Torres, M. El-Nozahi, A. Amer, S. Gopalraju, R. Abdullah, K. Entesari, and E. Sánchez-Sinencio, “Capacitor- Less Low Drop-Out Regulators: A Tutorial,” in IEEE Circuit and Systems Magazine, vol. 14, pp. 6-26, Feb. 2014.
- M. El-Nozahi, A. Helmy, E. Sánchez-Sinencio, and K. Entesari, “An inductor-less noise-cancelling broadband low noise amplifier with composite transistor pair in 90 nm CMOS technology,” in IEEE J. of Solid State Circuits, May. 2011.
- M. El-Nozahi, E. Sánchez-Sinencio, and K. Entesari, “A MM-Wave (20-32 GHz) Wideband Sub-Harmonic Mixer on 0.18 Km SiGe process,” in IEEE Trans. on Microwave Theory and Techniques, Nov 2010.
- M. El-Nozahi, A. Amer, E. Sánchez-Sinencio, and K. Entesari, “A MM-Wave (24/31 GHz) Dual-Band Switchable Harmonic Receiver on 0.18 Km SiGe process,” in IEEE Trans. on Microwave Theory and Techniques, Nov 2010.
- M. El-Nozahi, A. Amer, J. Torres, K. Entesari, and E. Sánchez-Sinencio, “LDO with Feed-forward Ripple Cancellation Technique for High Power Supply Rejection,” in IEEE J. of Solid State Circuits, Mar. 2010.
- M. El-Nozahi, E. Sánchez-Sinencio, and K. Entesari, “A Millimeter-Wave (23-32 GHz) Wideband BiCMOS Low Noise Amplifier,” J. of Solid State Circuits, Feb. 2010.
- M. El-Nozahi, E. Sánchez-Sinencio, and K. Entesari, “Power-Aware Multi-Band/Multi-Standard CMOS Receiver System-Level Budgeting”, in IEEE Trans. on Circuits and Systems-I, July 2009.
- M. El-Nozahi, E. Sánchez-Sinencio, and K. Entesari, “A CMOS Low Noise Amplifier with Reconfigurable Input Matching Network”,in IEEE Trans. on Microwave Theory and Techniques, May 2009.
- M. El-Nozahi and Y. Massoud, “Efficient Synthesis Methodology for Optimal Inerter-Based Transimpedance Amplifiers,” J. of Analog Integrated Circuits and Signal processing, Mar. 2007.

Conferences:
- M. Osama, H. Ragai, M El-Nozahi “A 28GHz High Efficiency Inverse Class-F Series Doherty Power Amplifier,” International Conference on Internet of Everything, Microwave Engineering, Communication and Networks (IEMECON), Feb 2023.
- R. Onsy, M El-Nozahi, H. Ragai “A Design-Aware Parasitic-Aware Simulation-Based Tool for the Design of RF Amplifiers,” in International Conference on Smart Systems and Inventive Technology (ICSSIT), Jan 2023.
- N. Mansour, M El-Nozahi, H. Ragai “Automated Parasitic-Aware and optimization Tool for CMOS Active Phase Shifters Design,” in International Conference on Smart Systems and Inventive Technology (ICSSIT), Jan 2023.
- A. Khalil et al., “mm-wave 5G radios: Baseband to waves,” in Proceedings of International Solid-State Circuits (ISSCC), Feb 2021.
- M.S. Eleraky, M. El Nozahi, E. Hegazi, “A low power Charge Steering Based Frequency Divider,” in Proceedings of National Radio Science Conference (NRSC), Sept 2020.
- S. Ghozzy, H.F. Ragai, M El-Nozahi, “A Two-Step VCO-Based ADC with PWM Pre-coded Coarse Quantizer,” in Proceedings of IEEE International Conference on Electronics Technology (ICET), May 2020.
- A. Aboalseoud, A. Youssry, M. El-Nozahi, A. El-Rafei, A. ElBialy, H. Ragaai, A. Weheiba, “Wireless ECG Monitoring System for Telemedicine Application,” in Proceedings of International Conference on Intelligent Computing and Information Systems (ICICIS), Dec 2019.
- A. AbdelRahman, M. El-Nozahi, H.F. Ragai, “Adjustable Radio Frequency Front End Receiver for SDR and CR Applications Employing Noise Cancelling,” in Proceedings of IEEE International Midwest Symposium on Circuits and Systems, August 2019.
- M.Y Mohamed, E Hegazi, M. El-Nozahi, “A 0.35 mW 8-bit 140MS/s asynchronous hybrid ADC for low energy radio applications,” in Proceedings of National Radio Science Conference (NRSC), April 2019.
- E. Helal, M. El-Nozahi, S. Ibrahim, H.F. Ragai“A 1.65 to 2.5 GHz Wide-Band RF Energy Harvester,” in Proceedings of IEEE International Midwest Symposium on Circuits and Systems, May 2018.
- M. A. Khalil, E. Hegazi, M. El-Nozahi, “Low-ripple PFM Buck Converter Employing Background Calibration,” in Proceedings of IEEE International Symposium of Circuits and System (ISCAS), May 2018.
- M. A. Khalil, E. Hegazi, M. El-Nozahi, “Design Trade-offs in Buck Converters for Low-Energy Wireless Transceivers,” in Proceedings of IEEE International Symposium of Circuits and System (ISCAS), May 2018.
- 4. A. Zamzam, M. El-Nozahi, H.F. Ragai “A 60GHz stacked injection locking power amplifier,” in Proceedings of IEEE Wireless and Microwave Technology Conference, Apr 2018.
- M. K. Bahry, M El-Nozahi, E. Hegazi, “A PFM-regulated switched-capacitor DC-DC converter with enhanced- ripples technique,” in Proceedings of International Conference on Microelectronics (ICM), Dec. 2017.
- M. K. Bahry, M El-Nozahi, E. Hegazi, “A battery-connected all-digital capacitive DC-DC converter with load tracking controller,” in Proceedings of International SoC Design Conference (ISOCC), Nov 2017.
- N. Fathy, M El-Nozahi, E. Hegazi, “A digitally calibrated impedance booster circuit for neural recording systems,” in Proceedings of IEEE Biomedical Circuits and Systems Conference (BioCAS), Oct. 2017.
- A. Qassem, M. El-Nozahi, H. Ragai, “Broadband noise and distortion cancelling low noise amplifier,” in Proceedings of International Midwest Symposium on Circuits and Systems(MWCAS), Aug. 2017.
- Moh. Saad, M. El-Nozahi, H.F. Ragai, “Low noise chopper instrumentation amplifier with feed-forward ripple suppression technique,” in Proceedings of International Conference on Microelectronics (ICM), Dec. 2016.
- G. Ghaly, M. El-Nozahi, H.F. Ragai, “A 9 mW Wideband 60 GHz LNA with 3.55dB NF,” in IEEE International Midwest Symposium on Circuits and Systems, Oct 2016.
- Moh. Saad, M. El-Nozahi, H.F. Ragai, “A Chopper Capacitive Feedback Instrumentation Amplifier with Input Impedance Boosting Technique,” in IEEE International Midwest Symposium on Circuits and Systems, Oct 2016.
- O. El-Aassar, M El-Nozahi, H.F. Ragai, “Phase Aligned mm-Wave Injection Locked Power Amplifier,”in Proceeding of IEEE International Symposium of Circuits and Systems, May 2016.
- A. Hamza, S. Ibrahim, M. El-Nozahi, M. Dessouky, “A Wideband 5 GHz Digital PLL Using a Low-Power Two- Step Time-to-Digital Converter,” in Proceedings of IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Dec. 2015.
- M. El Ansary, M. El-Nozahi, H.F. Ragaie, “Biomedical sensor interface for PLI cancellation,” in Proceedings of IEEE International Midwest Symposium on Circuits and Systems, Aug 2015.
- M. Gamal, M. El-Nozahi, H. El-Hennawy, “Concurrent dual-band LNA for automotive application,” in Proceedings of IEEE International Midwest Symposium on Circuits and Systems, Aug 2015.
- A. Hamza, S. Ibrahim, M. El-Nozahi, M. Dessouky, “A low-power, 9-Bit, 1.2 ps resolution two-step time-to- digital converter in 65 nm CMOS,” in Proceedings of IEEE International New Circuits and Systems (NEWCAS), June 2015.
- M. Atef, M. El-Nozahi, E. Hegazi, “A second-order noise-shaping time-to-digital converter using switched-ring oscillator,” in Proceedings of IEEE International Symposium of Circuits and System (ISCAS), May 2015.
- O. El-Aassar, M El-Nozahi, H.F. Ragai, “Loss mechanisms and switching performance analysis for efficient mm-Waves Class-E PAs,” in Proceedings of IEEE International Symposium of Circuits and System (ISCAS), May 2015.
- S.B. Idres, M. El-Nozahi, H.F. Ragai, “A noise cancelling envelope detector for low power wireless sensor applications,” in Proceedings of IEEE International Symposium of Circuits and System (ISCAS), May 2015.
- A. Qassem, M. El-Nozahi, H. Ragai, “Analysis and design of wideband common-gate low noise amplifier,” in Proceedings of International Conference on Microelectronics (ICM), Dec. 2014.
- N. Mansour, M El-Nozahi, H El Ghitani, A El Hennawy, “A novel matching network and design methodology for inductively degenerated LNAs at 60 GHz,” in Proceedings of International Conference on Engineering and Technology (ICET), 2014.
- M. El-Nozahi, A. Helmy, E. Sánchez-Sinencio, and K. Entesari, “A 2-1100 MHz Broadband Low Noise Amplifier with 1.43 dB minimum Noise Figure,” in RFIC 2010.
- M. El-Nozahi, A. Amer, J. Torres, K. Entesari, and E. Sánchez-Sinencio, “A 25mA 0.13Km CMOS LDO Regulator with Power Supply Rejection better than -56dB up to 10MHz using Feed-Forward Ripple Rejection Technique,” in Proceeding of IEEE International Solid State Circuits Conference, Feb. 2009.
- M. El-Nozahi, K. Entesari, and E. Sánchez-Sinencio,” A Systematic System Level Design Methodology for Dual Band CMOS Receivers,” Proceedings of the IEEE Midwest Conference, 2007.
- M. El-Nozahi and Y. Massoud, ”A Integrated Circuit/ behavioral Simulation Framework for Continuous-Time Sigma Delta ADCs,” in Proceedings of GLSVLSI, 2006.
- M. El-Nozahi and Y. Massoud, “Synthesis Methodology for Transimpedance Amplifier with Bit Error Rate Constraint,” in Proceedings of the IEEE Midwest Conference, Aug. 2005.
- M. Zakarya, M. Madbouly, M. El-Nozahi, and M. Dessouky,” Knowledge Based Design of Highly Non-linear Circuits Using Simulation Correction," in Proceedings of the IEEE ICM Conference, Dec. 2003.
- M. El-Nozahi, M. Dessouky, and H.F. Ragai, “Tunable Bandpass Sigma Delta Modulators,” in Proceedings of the IEEE Midwest Conference, Dec. 2003.
- G. Antoun, M. El-Nozahi, W. Fikry, and H. Abbas, “A Hybrid Genetic Algorithm for MOSFET Parameter Extraction,” in Proceedings of IEEE CCECE, vol. 2, pp. 1111-1114, May 2003.