State Key Laboratory of Terahertz and Millimeter Waves

(City University of Hong Kong)

&

IEEE AP/MTT HK Joint Chapter

Seminar on

Quasi-Optical Multibeam Antennas with Multiple Radiation Characteristics

Professor Yuanxi Cao

School of Information and Communications Engineering

Xi'an Jiaotong University, China

Date                :    4 November 2026 (Wednesday)
Time               :    11:00 am – 12:00 nn
Venue              :    Room 15-202, 15/F, State Key Laboratory of Terahertz and Millimeter Waves, Lau Ming Wai Academic Building

Abstract

Recent developments in quasi-optical multibeam antennas offer promising solutions for highly directive wireless applications, serving as a compelling alternative to modern sensing and communications with strong scalability and cost-effective beam-steering capabilities. By leveraging passive beamforming networks, these antennas reduce reliance on a large number of RF components while significantly lowering hardware expenses. However, practical deployment often faces critical trade-offs among physical volume, gain, and bandwidth. To overcome these limitations, effective solutions are presented through structural planarization, radiation aperture loading, and optimized beam-scanning performance. Furthermore, methodologies are explored for integrating multifunctional radiation properties into quasi-optical antenna systems.

Biography

Yuanxi Cao received the B.E. degree in electromagnetic fields and wireless technology and the M.E. degree in electromagnetic fields and microwave technology from Northwestern Polytechnical University, Xi'an, China, in 2016 and 2019, respectively, and the Ph.D. degree in electronic science and technology from Xi'an Jiaotong University, Xi'an, China, in 2023. He is currently an Assistant Professor with the School of Information and Communications Engineering at Xi'an Jiaotong University. His current research interests include multi-beam antennas and RF microsystems.

He has served as a Guest Editor of Frontiers in Antennas and Propagation and Electronics. He served as a Session Chair for multiple major academic conferences, including PIERS 2027, IEEE MAPE 2026, IEEE IMWS-AMP 2026, ISEMC 2026, IEEE UCMMT 2025, and IEEE iWEM 2025. He was a recipient of the Young Scientist Award of Photonics and Electromagnetics Research Symposium (PIERS) in 2025.

*** ALL ARE WELCOME ***

Enquiries:

Prof. Chi Hou Chan, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong

Email: eechic@cityu.edu.hk