High-performance differential VCO based on Armstrong oscillator topology. - Nikolay T. Tchamov; Tero Niemi; Niko Mikkola (IEEE J. Solid State Circuits, 2001)

A 4.3-GHz VCO with 2-GHz tuning range and low phase noise. - Paavo Väänänen; Mikko Metsänvirta; Nikolay T. Tchamov (IEEE J. Solid State Circuits, 2001)

Novel VCO Architecture Using Series Above-IC FBAR and Parallel LC Resonance. - Kim B. Östman; Sami Sipilä; Ivan S. Uzunov; Nikolay T. Tchamov (IEEE J. Solid State Circuits, 2006)

Dual-Band LC VCO Architecture With a Fourth-Order Resonator. - Nikolay T. Tchamov; Svetozar S. Broussev; Ivan S. Uzunov; Kari K. Rantala (IEEE Trans. Circuits Syst. II Express Briefs, 2007)

Technique for Flicker Noise Up-Conversion Suppression in Differential LC Oscillators. - Nikolay N. Tchamov; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. II Express Briefs, 2007)

Time-Varying Root-Locus of Large-Signal LC Oscillators. - Svetozar S. Broussev; Nikolay T. Tchamov (IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 2010)

Evaluation of Parasitic Components in LC Oscillators by Time-Varying Root-Locus. - Svetozar S. Broussev; Nikolay T. Tchamov (J. Low Power Electron., 2011)

Quality Factor Analysis for Cross-Coupled LC Oscillators Using a Time-Varying Root Locus. - Svetozar S. Broussev; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. II Express Briefs, 2012)

Design Considerations in Tapped-Inductor Fourth-Order Dual-Band VCO. - Svetozar S. Broussev; Ivan S. Uzunov; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. II Express Briefs, 2012)

A Darlington-Enhanced CMOS Oscillator Architecture. - Tapio A. Lehtonen; Pekko Ruippo; Teppo Keitaanniemi; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. II Express Briefs, 2012)

Push-pull RC-oscillator/multivibrator. - Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (MWSCAS, 2013)

Source follower: A misunderstood humble circuit. - Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (MWSCAS, 2013)

Evaluation and comparison of GHz-range LC oscillators using time-varying root-locus. - Svetozar S. Broussev; Nikolay T. Tchamov (Int. J. Circuit Theory Appl., 2013)

Two-Phase Self-Assisted Zero-Voltage Switching DC-DC Converter. - Svetozar S. Broussev; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. II Express Briefs, 2013)

On design of low-voltage CMOS current amplifiers. - Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (MWSCAS, 2014)

Determining potentially unstable operating points using time-varying root-locus. - Jani K. Jarvenhaara; Nikolay T. Tchamov; Igor M. Filanovsky (ISCAS, 2015)

An asymmetric VHF self-oscillating DC-DC converter with integrated transformer. - R. Akbar; Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (MWSCAS, 2015)

Cascoded power stage with automatic dead time generation. - Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (MWSCAS, 2015)

Start-up and frequency stability analysis using time varying root locus. - Sanjeev Jain; Nikolay T. Tchamov (IEICE Electron. Express, 2015)

High speed DC-DC dead time architecture. - Jani K. Jarvenhaara; Hans Herzog; Sami Sipilä; Jing Tian; Igor M. Filanovsky; Nikolay T. Tchamov (IEICE Electron. Express, 2015)

On moderate inversion/saturation regions as approximations to "reconciliation" model. - Igor M. Filanovsky; Jani K. Jarvenhaara; Nikolay T. Tchamov (CCECE, 2016)

A variable battery supply dc-dc buck converter designed for 45 nm-CMOS technology. - Arash Fouladi; Jani K. Jarvenhaara; Igor M. Filanovsky; Nikolay T. Tchamov (CCECE, 2016)

QVCO frequency stability analysis using time varying root locus. - Sohail Aneeb; Sanjeev Jain; Nikolay T. Tchamov (IEICE Electron. Express, 2016)

A simple LDO with adaptable bias for internet of things applications. - Igor M. Filanovsky; Luís Bica Oliveira; Nikolay T. Tchamov; Vadim V. Ivanov (ISCAS, 2017)

Fractional harmonic distortion calculation using simplified "reconciliation" model for a MOST operating in moderate inversion. - Igor M. Filanovsky; Luís B. Oliveira; Nikolay T. Tchamov (MWSCAS, 2017)

Maximally flat property and bandwidth enhancing by transfer function zeroes. - Igor M. Filanovsky; Nikolay T. Tchamov (NEWCAS, 2017)

Using Modified Bessel Functions For Calculations of Drain Current Harmonics In a MOS Transistor Operating in Moderate Inversion. - Igor M. Filanovsky; Luís B. Oliveira; Nikolay T. Tchamov (ISCAS, 2018)

Maximal Flatness and Filters Transitional Between Butterworth and Inverse Chebyshev Ones. - Igor M. Filanovsky; Nikolay T. Tchamov (NEWCAS, 2018)

Decomposition of Drain Current In Weak, Moderate, and Strong Inversion Components. - Igor M. Filanovsky; Luís B. Oliveira; Nikolay T. Tchamov (ICECS, 2019)

Using Modified Bessel Functions for Analysis of Nonlinear Effects in a MOS Transistor Operating in Moderate Inversion. - Igor M. Filanovsky; Luís B. Oliveira; Nikolay T. Tchamov (IEEE Trans. Circuits Syst. I Regul. Pap., 2019)

A Two-Stage LNA Design for 28GHz Band Of 5G on 45nm CMOS. - Jani K. Jarvenhaara; Igor M. Filanovsky; I. Nevalainen; Nikolay T. Tchamov (MWSCAS, 2020)