Publications

Modeling of Input Nonlinearity and Waveform Engineered High Efficiency Class-F Power Amplifiers

Sagar K. Dhar, Tushar Sharma, Student Member, IEEE, Ning Zhu, Ramzi Darraji, Member, IEEE, Damon G. Holmes, Senior Member, IEEE, Joseph Staudinger, Fellow, IEEE, Mohammad Helaoui, Senior Member,

Multi-port Active Load Pulling for mm-Wave 5G Power Amplifiers: Bandwidth, Back-Off Efficiency, and VSWR Tolerance

Chandrakanth Reddy Chappidi, Student Member, IEEE, Tushar Sharma , Member, IEEE, and Kaushik Sengupta , Senior Member, IEEE

Novel High Efficiency Power Amplifier Mode Using Open Circuit Harmonic Loading

Tushar Sharma, Sagar K. Dhar, Ramzi Darraji, Damon G. Holmes, Vince Mallette, Jeffrey K. Jones, and Fadhel M. Ghannouchi – 2019

Investigation of Input-Output Waveform Engineered Continuous Inverse Class F Power Amplifliers

Sagar K. Dhar, Tushar Sharma, Student Member, IEEE, Ramzi Darraji, Damon G. Holmes, Member, IEEE, Suhas V. Illath, Vince Mallette, and Fadhel M. Ghannouchi, Fellow, IEEE – 2019

Multipurpose Tuners Control Impedances from 20 to 110 GHz

MM-Wave Noise Characterization of 40nm CMOS Transistor for up to 67 GHz

Xi Sung Loo, Hoang V. Nguyen, Zhihong Liu, Kok Wai Chew, Johnny, Neven Misljenovic, Bryan Hosein, Christos Tsironis, Jen Shuang Wong and Wai Heng Chow – 2014

On-Wafer Load Pull Characterization of W-Band InP HEMT Unit Cells for CPW MMIC Medium Power Amplifiers

D. W. Baker’, R. S. Robertson, R. T. Kihm, M. Matloubian, M. Yu, and R. Bowen – 2014

Impedance Synthesis Algorithms for Hybrid Harmonic Load Pull

Bryan Hosein, and Timothy Beauchamp – 2013

Efficient Noise Extraction Algorithm and Wideband Noise Measurement System from 0.3 GHz to 67 GHz

Hoang V. Nguyen, Neven Misljenovic, and Bryan Hosein – 2013

Sub-0.2 dB Noise Figure Wideband Room-Temperature CMOS LNA With Non-50Ohm Signal-Source Impedance

Leonid Belostotski, Student Member, IEEE, and James W. Haslett, Fellow, IEEE – 2007

On Wafer Time Domain Load Pull Optimization of Transistor Load Cycle with the New Multi-Harmonic MPT Tuner

Fabien De Groote, Olivier Jardel, Jean-Pierre Teyssier, Tony Gasseling, Jan Verspecht, Vince Mallette, Christos Tsironis – 2007

Three-Probe Tuner Tackles Multiple Tasks

​Microwaves & RF Cover

Designing Multi-Stage Class C Amplifiers for Pulsed Radar Applications

Jim Curtis – 2005

Pitfalls to Avoid When Using Load Pull Contours for PA Design

Microwave Journal – 2004

Load Pull Tuners Are Frequency Selective

Microwaves & RF Cover Story – 2004

Advanced Non-linear Model for Accurate Prediction of Harmonically Terminated Power Amplifier Performance

J. I. Upshur, Member IEEE, Carl White, M. E. Bayne, Jr., Member IEEE, Ben Davis, Lawrence Wake, Jr., M. A. Reece, W. L. Thompson, II, Member IEEE, S. Cheng, and R. E. Wallis – 2004

A Balanced 24-Volt GaAs FET Amplifier for 2.11 to 2.17 GHz

Jon Shumaker – 2004

An Intelligent Microwave Tuner

Microwave Journal – 2003

Coaxial Tuners Control Impedances to 65 GHz

Microwave & RF Cover Story – 2003

Study on Large-Signal Linearity and Efficiency of AlGaNGaN MODFETs

Shawn S.H. Hsu, Pouya Valizadeh, Dimitris Pavlidis, Jeong S. Moon, M. Micovic, Danny Wong, and T. Hussain – 2003

Recycling Ambient Microwave Energy with Broad-Band Rectenna Arrays

Joseph A. Hagerty, Student Member, IEEE, Florian B. Helmbrecht, Student Member, IEEE, William H. McCalpin, Student Member, IEEE, Regan Zane, Member, IEEE, and Zoya B. Popovic, Fellow, IEEE – 2003

Analysis of Termination Impedance Effects on the Linearity of 5 GHz CMOS Radio Frequency Amplifiers

John S. Fairbanks Student Members IEEE, and Lawrence E. Larson Fellow, ZEEE – 2003

Characteristics of Microwave Power GaN HEMTs on 4-Inch Si Wafers

S. Manohar, A. Nmyanan, A. Keerti, A. Pham, J. Brown, R. Borges, and K. Linthicum – 2002

RF Small-Signal and Power Characterization of AlGaNGaN HEMT's

A. Fox, M. Marso, P. Javorka, and P. Kordos – 2002

Prematching Tuners Advance Load Pull Testing

Microwaves & RF – 2000

Prematching Tuners for Very High SWR and Power Load Pull Measurements

Microwave Journal Cover Story – 2000

InP-based Complementary HBT Amplifiers for use in Communication Systems

Donald Sawdai and Dimitris Pavlidis – 1999

High Power Performance InPInGaAs Single HBTs

D Sawdai, K Hong, A Samelis, and D Pavlidis – 1999

Instruments Simplify Load Pull Testing of High Power Transistors

Applied Microwave & Wireless – 1999

On Wafer Load Pull Characterization of W-Band InP HEMT Unit Cells for CPW MMIC Medium Power Amplifiers

D. W. Baker, R. S. Robertson, R. T. Kihm, M. Matloubian, M. Yu, and R. Bowen – 1999

Large-Signal Characterization of AlGaNGaN Power MODFETs

Egor Alekseev, Dimitris Pavlidis – 1999

Manual Tuners Help Make Precise Load Pull and Noise Measurements

Applied Microwave & Wireless – 1999

W-Band on Wafer Load Pull Measurement System and Its Application to HEMT Characterization

Egor Alekseev, Dimitris Pavlidis, and Christos Tsironis – 1999

Power Performance of InGaAsBnP Single HBTs

D. Sawdai, X. Zhang, D. Pavlidis, and P. Bhattacharya – 1998

Software Speeds Load Pull Testing

Microwaves & RF – 1998

Power Performance of PNP InAlAsInGaAs HBTs

D. Sawdai, X. Zhang, D. Pavlidis, and P. Bhattacharya – 1998

Power Amplification using NPN and PNP InP HBTs and Application to Push-Pull Circuits

Donald Sawdai and Dimitris Pavlidis – 1998

Comparison of Conventional and Thermally-Stable Cascode (TSC) AlGaAsGaAs HBT's for Microwave Power Applications

Shawn S.H. Hsu, Burhan Bayraktaroglu, and Dimitris Pavlidis – 1998

Macro File and Design Window Compression Load Pull Measurements

Microwave Journal – 1997

Active Tuning System Analyzes Power Transistors

Microwaves & RF – 1997

System Performs Active Load Pull Measurement

Microwaves & RF – 1995