Overview
Dr. Kauser A Chaudhry received his MSc (2001) in Microwave and Opto-electronics from University College London (UCL). He completed his Ph.D. at Cardiff University (2019) where he is working as a researcher in PA design and characterization for the emerging base station and microwave heating applications. Kauser has over 15 years of industrial experience, working for companies like Nokia, Panasonic, and NXP Semiconductors.
Biography
I received my B.Eng. Hons degree in electrical and electronic engineering in 1994, an M.Sc. degree in Microwave and Optoelectronics from University College London in 2001, and a Postgraduate Certificate in Education from the University of Wales in 2005. I have over 20 years of experience and since receiving my M.Sc. I have worked as a senior and principal design engineer for Nokia, Panasonic, and NXP (Ampleon) semiconductors. My work has focused on designing and manufacturing RF power transistors and amplifiers for base station applications. My research at Cardiff University has focused on Power Amplifier design for base-station and other emerging markets such as microwave heating applications. My other research interests include RF Power Amplifier design for non-50ohm load environments.
Publications
2023
- Yuan, T., Quaglia, R., Chaudhry, K., Azad, E., Powell, J. R. and Cripps, S. C. 2023. Output signal re-injection in load modulated balanced amplifiers for RF bandwidth improvement. IEEE Microwave and Wireless Components Letters 33(10), pp. 1458-1461. (10.1109/LMWT.2023.3305812)
2022
- Quaglia, R., Powell, J. R., Chaudhry, K. and Cripps, S. C. 2022. Mitigation of load mismatch effects using an orthogonal load modulated balanced amplifier. IEEE Transactions on Microwave Theory and Techniques 70(6), pp. 3329-3341. (10.1109/TMTT.2022.3167414)
- Azad, E. M., Quaglia, R., Bell, J. J., Chaudhry, K., Nghiem, A., Sulaksono, K. and Tasker, P. J. 2022. Load-pull data analysis of a GaN on SiC HEMT targeting multi bias Doherty design. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC, Cardiff, UK, 7-8 April 2022Proceedings of the 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE, (10.1109/INMMiC54248.2022.9762106)
- Quaglia, R., Powell, J., Chaudhry, K. and Cripps, S. 2022. Effect of HEMT output characteristics on the load mismatch resilience in balanced power amplifiers. Presented at: 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), Cardiff, Wales, 07-08 April 20222022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE pp. 1-3., (10.1109/INMMiC54248.2022.9762184)
- Azad, E. M., Quaglia, R., Bell, J. J., Chaudhry, K. and Tasker, P. J. 2022. DC-dependent Cardiff model from modulated supply and load-pull data. Presented at: 2022 Asia-Pacific Microwave Conference (APMC), Yokohama, Japan, 29 November 2022 - 02 December 2022Proceedings of 2022 Asia-Pacific Microwave Conference (APMC). IEEE pp. 181-183., (10.23919/APMC55665.2022.9999796)
2020
- Chaudhry, K. 2020. Solid-state technology for domestic microwave heating applications. PhD Thesis, Cardiff University.
A major focus of my research has been the design of power amplifiers for current and emerging base station applications and the challenges of using solid-state technology for microwave heating applications. My other research interests include RF Power Amplifier design for non-50ohm load environments.