Ahmed A. Helmy

A 2.8-mW Sub-2-dB Noise-Figure Inductorless Wideband CMOS LNA Employing Multiple Feedback

Ehab Ahmed Sobhy, Ahmed A. Helmy, Sebastián Hoyos et al. · IEEE Transactions on Microwave Theory and Techniques · 2011 · 101 citations

Engineering, Electrical Engineering, Analog Electronics +16

A Self-Sustained CMOS Microwave Chemical Sensor Using a Frequency Synthesizer

Ahmed A. Helmy, Hyung-Joon Jeon, Yung-Chung Lo et al. · IEEE Journal of Solid-State Circuits · 2012 · 98 citations

Engineering, Chemical Engineering, Electrical Engineering +14

An Inductor-Less Noise-Cancelling Broadband Low Noise Amplifier With Composite Transistor Pair in 90 nm CMOS Technology

Mohamed El-Nozahi, Ahmed A. Helmy, E. Sánchez‐Sinencio et al. · IEEE Journal of Solid-State Circuits · 2011 · 92 citations

Engineering, Electrical Engineering, Analog Electronics +16

A CMOS Fractional-$N$ PLL-Based Microwave Chemical Sensor With 1.5% Permittivity Accuracy

Osama Elhadidy, Mohamed Elkholy, Ahmed A. Helmy et al. · IEEE Transactions on Microwave Theory and Techniques · 2013 · 51 citations

Engineering, Electrical Engineering, Materials Science +17

A 0.62–10 GHz Complex Dielectric Spectroscopy System in CMOS

Masoud Moslehi Bajestan, Ahmed A. Helmy, H. Hedayati et al. · IEEE Transactions on Microwave Theory and Techniques · 2014 · 48 citations

Engineering, Electrical Engineering, Materials Science +17