Anding Zhu

Anding Zhu received the Ph.D. degree in electronic engineering from University College Dublin (UCD), Ireland, in 2004, where he is currently a Full Professor in the School of Electrical and Electronic Engineering. His research interests include high-frequency nonlinear system modelling, device characterization, high-efficiency RF power amplifier design, and nonlinear system identification algorithms. He has published more than 200 peer-reviewed journal and conference papers.

Prof. Zhu is an IEEE Fellow and he is currently President of the IEEE Microwave Theory and Technology Society (MTT-S). He previously served as a Track Editor for the IEEE Transactions on Microwave Theory and Techniques (T-MTT) from 2020 to 2022 and he received the IEEE MTT-S Microwave Prize in 2021.

Title of the presentation:
Next Generation RF Power Amplifiers: Efficiency and Linearity Challenges

Abstract:
Radio frequency (RF) power amplifiers (PAs) are key components in almost all wireless transmitters, ranging from tiny sensors and mobile devices to high-power cellular base stations. Their essential function is to convert DC power into amplified RF signals, ensuring reliable wireless transmission. With 6G networks expected to support ultra-high-speed communications, massive IoT connectivity, and immersive user experiences, PAs must overcome critical challenges in energy efficiency, broadband operation, and linearity, particularly under high peak-to-average power ratios and dynamic traffic conditions.

This talk discusses the major obstacles and emerging solutions in next-generation PA design. It will cover advanced PA architectures, novel device technologies such as GaN MMICs, operation in new frequency ranges (e.g., FR3), and the application of AI-driven optimization techniques. Approaches for linearity enhancement, tighter system integration, and cross-layer co-design will also be highlighted.