Prof. Guoqing Luo (Fellow of IEEE, Fellow of CIE)
Hangzhou Dianzi University, China

Speech Title: Multibeam lens antenna systems for wireless and satellite communications

Abstract: Multibeam lens antennas have garnered much attention owing to their high gain, inherent multibeam capability, and lower hardware cost. This report presents two recent developments in the multibeam lens antenna for wireless and satellite communications：1) an ultra-wideband dual-polarized Luneburg lens multibeam antenna, where a shared-aperture dual-polarized antenna with ultra-wide bandwidth and high isolation was proposed. By combining the feed antenna with a 3D-printed Luneburg lens, a wide-angle multibeam antenna system was realized, exhibiting a scanning range of ±66°. 2) a dual circularly polarized (CP) Luneburg lens multibeam antenna, where dual linearly polarized (LP) feed antennas were integrated with an LP-to-CP dielectric Luneburg lens. As a result, a high-isolation dual CP multibeam antenna was achieved, providing beam coverage over a ±81° scanning range. These two designs demonstrate the strong potential of multibeam lens antennas for future wireless and satellite communication systems.

Biography: Guo Qing Luo (M’08-SM’18-F’26) received the Ph.D. degree from Southeast University, Nanjing, China, in 2007. Since 2007, he has been a Lecturer with the School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, China, and was promoted to Professor in 2011. From Oct. 2013 to Oct. 2014, he was a Research Associate with the Department of Electrical, Electronic and Computer Engineering, Heriot-Watt University, Edinburgh, U.K., where he was involved in developing low profile antennas for UAV applications. He has authored or co-authored over 260 technical papers in refereed journals and conferences and holds over 90 patents. His current research interests include RF, microwave and mm-wave passive devices, antennas, circuits and systems.
Dr. Luo is a Fellow of IEEE and CIE. He was a recipient of the CST University Publication Award in 2007, the National Excellent Doctoral Dissertation of China in 2009, the National Natural Science Award of China in 2016, and the Natural Science Award of Zhejiang Province, China in 2021. He is the Chair of IEEE Microwave Theory and Techniques Society Hangzhou Chapter. He has served as the TPC chair and co-chair for several international conferences. He also serves as editor for some technical journals.

Prof. Dazhi Ding (Fellow of CIE, Vice President of NJUST)
Nanjing University of Science and Technology, China

Speech Title: Ultra-Wideband Curved Array Design for Wide-Angle Beamforming with Electro-Thermal Co-optimization

Abstract: This report focuses on the large-angle beamforming and electrothermal co-design of curved surface ultra-wideband array antennas. It covers strategies for large-angle beam compensation, non-regular array layout, and electrothermal co-optimization to enhance the electrothermal performance of ultra-wideband curved surface arrays.

Biography: Da-Zhi Ding, Vice President of Nanjing University of Science and Technology, professor, doctoral supervisor and member of the Academic Committee. He is a recipient of the National Science Fund for Distinguished Young Scholars, the “Ten Thousand Talents Program” Leading Scientist Program, a fellow of the Chinese Institute of Electronics, and a standing director of the Chinese Institute of Electronics. His research mainly focuses on electromagnetic theory and microwave technology. He has published two academic monographs, over 180 academic papers, and over 60 authorized patents. He has received the First Prize of Jiangsu Science and Technology Award, the Second Prize of Natural Science of the Chinese Institute of Electronics, Jiangsu Youth Science and Technology Award and Top Ten Science and Technology Stars, Jiangsu Outstanding Middle-aged and Young Expert with Outstanding Contributions, and the First Prize of Jiangsu Graduate Education Reform Achievements, among others.

Prof. Zhiwei Xu
Zhejiang University, China

Speech Title: AI assisted Microwave- and Millimeter-Wave IC design for Phased Array Applications

Abstract: Microwave- and Millimeter-Wave IC design might be a laborious process to optimize many aspects, varying from noise and linearity performances to chip real estate and power consumptions. A sophisticated trade-off among all these parameters is essential, demanding lots of time and effort from designers. In contrast, automatic synthesis is a well-established practice in digital IC design that has significantly improve efficiency. While various approaches for automating analog and RF IC design have been attempted, they have not yet achieved widespread success due to inferior performance. However, with the rapid advancement of AI technologies, is this paradigm about to change?

Biography: Zhiwei Xu received the M.S. degree in Electronics Engineering from Fudan University, Shanghai, China, in 2000, and the Ph.D. degree in Electrical Engineering from the University of California, Los Angeles, USA, in 2003. He is currently a Professor at Zhejiang University, Hangzhou, China, where he leads the High-Speed Integrated Circuits (IC) Group.
Prior to joining academia, he held industry positions at G Plus Inc. and SST Communications in Los Angeles, Conexant Systems in Irvine, NXP Semiconductors in San Diego, and HRL Laboratories in Malibu, USA. In these roles, he led the development of wireless LAN system on chip (SoC) solutions for proprietary wireless multimedia systems, CMOS cellular transceivers, Multimedia over Cable (MoCA) systems and TV tuners, millimeter and sub millimeter wave integrated circuits and systems, software defined radios, high speed analog to digital converters (ADCs), and ultra low power analog VLSI circuits.
Dr. Xu has authored or co-authored more than 200 journal and conference publications，holds over 60 patents, and has contributed to three book chapters. His research interests include RF and millimeter-wave circuits, integrated phased arrays, circuits for integrated sensing, communication and computation, and energy efficient IC design.