An adaptive slew rate and dead zone ring amplifier. - Karim M. Megawer; Faisal A. Hussien; Mohamed M. Aboudina; Ahmed Nader Mohieldin (ISCAS, 2016)

A 5GHz 370fsrms 6.5mW clock multiplier using a crystal-oscillator frequency quadrupler in 65nm CMOS. - Karim M. Megawer; Ahmed Elkholy; Daniel Coombs; Mostafa Gamal Ahmed; Ahmed Elmallah; Pavan Kumar Hanumolu (ISSCC, 2018)

A Systematic Design Methodology for Class-AB-Style Ring Amplifiers. - Karim M. Megawer; Faisal A. Hussien; Mohamed M. Aboudina; Ahmed Nader Mohieldin (IEEE Trans. Circuits Syst. II Express Briefs, 2018)

A 5GHz 245fsrms 8mW Ring Oscillator-based Digital Frequency Synthesizer. - Amr Khashaba; Ahmed Elkholy; Karim M. Megawer; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (CICC, 2019)

A 54MHz Crystal Oscillator With 30× 18.5 Start-Up Time Reduction Using 2-Step Injection in 65nm CMOS. - Karim M. Megawer; Nilanjan Pal; Ahmed Elkholy; Mostafa Gamal Ahmed; Amr Khashaba; Danielle Griffith; Pavan Kumar Hanumolu (ISSCC, 2019)

Design of Crystal-Oscillator Frequency Quadrupler for Low-Jitter Clock Multipliers. - Karim M. Megawer; Ahmed Elkholy; Mostafa Gamal Ahmed; Ahmed Elmallah; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2019)

A Fast Startup CMOS Crystal Oscillator Using Two-Step Injection. - Karim M. Megawer; Nilanjan Pal; Ahmed Elkholy; Mostafa Gamal Ahmed; Amr Khashaba; Danielle Griffith; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2019)

A Low-Noise Frequency Synthesizer Using Multiphase Generation and Combining Techniques. - Amr Khashaba; Ahmed Elkholy; Karim M. Megawer; Mostafa Gamal Ahmed; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2020)

High-performance reference frequency generation techniques - Karim M. Megawer (2020)

A 3.2GHz 405fsrms jitter -237.2dB-FoMJIT ring-based fractional-N synthesizer using two-step quantization noise cancellation and piecewise-linear nonlinearity correction. - Ahmed Elmallah; Junheng Zhu; Amr Khashaba; Karim M. Megawer; Ahmed Elkholy; Pavan Kumar Hanumolu (CICC, 2021)

A 3.2-GHz 405 fsrms Jitter -237.2 dB FoMJIT Ring-Based Fractional-N Synthesizer. - Ahmed Elmallah; Junheng Zhu; Amr Khashaba; Karim M. Megawer; Ahmed Elkholy; Pavan Kumar Hanumolu (IEEE J. Solid State Circuits, 2022)