A low power 9GHz divide-by-3 injection locked frequency divider in 0.18μm CMOS with 15% locking range. - Somaye Asadian; Mohammad Jafar Hemmati; Sasan Naseh (ICECS, 2011)

A CMOS quadrature VCO with optimized Colpitts topology for low-voltage applications. - Mohammad Jafar Hemmati; Ahmad Hakimi (Microelectron. J., 2018)

A low-voltage swing-enhanced Colpitts CMOS LC-QVCO based on first-harmonics coupling. - Mohammad Jafar Hemmati; Rasoul Dehghani; Ahmad Hakimi (Microelectron. J., 2019)

Analysis and review of main characteristics of Colpitts oscillators. - Mohammad Jafar Hemmati; Rasoul Dehghani (Int. J. Circuit Theory Appl., 2021)

Design optimization of the complementary voltage controlled oscillator using a multi-objective gravitational search algorithm. - Sepehr Ebrahimi Mood; Mohammad Jafar Hemmati (Evol. Syst., 2023)

Novel six-phase ring voltage controlled oscillator with wide frequency tuning range. - Mohammad Jafar Hemmati; Rasoul Dehghani (Int. J. Circuit Theory Appl., 2024)

Wide Frequency Multiphase Oscillator Designed by Coupling Two Identical Ring Voltage Controlled Oscillators. - Mohammad Jafar Hemmati; Sepehr Ebrahimi Mood; Somayeh Zarei Dehnavi (Int. J. Circuit Theory Appl., 2025)