Abstract:
Electromagnetic metasurfaces enable subwavelength control over the amplitude, phase, and polarization of electromagnetic waves, making them one of the promising ways to advance next-generation antenna technology. Compared with active-component-loaded designs such as those employing PIN diodes, passive metasurfaces offer a compelling route to multifunctional and reconfigurable performance, with the advantages of low power consumption, low cost, and favorable scalability to high frequencies. This talk presents recent advances in the evolution of passive metasurfaces, progressing from static multifunctional architectures, including full-space chiral metasurfaces for bidirectional transmit-reflect-array antennas, spin-decoupled anisotropic metasurfaces for low-sidelobe dual-circularly-polarized transmitarrays, and direction-duplex Janus metasurfaces for asymmetric beam shaping and holography, toward dynamically reconfigurable architectures based on twisted chiral metasurfaces, a promising passive strategy for achieving dynamic electromagnetic functionality. These developments underscore the important role of multifunctional and reconfigurable metasurfaces in satellite communications and next-generation wireless systems. Biography:
Weixu Yang was born in Nantong, Jiangsu, China, in 1997. He received the B.E. degree in communication engineering from Nanjing University of Science and Technology, Nanjing, China, in 2019, and the Ph.D. degree in electronic science and technology from Nanjing University, Nanjing, in 2024. From 2024 to 2025, he was a Postdoctoral Research Fellow with the Department of Electrical and Computer Engineering, National University of Singapore, Singapore. In 2025, he joined the College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, as a faculty member, where he is currently an Associate Professor. His research interests include multifunctional and reconfigurable electromagnetic metasurfaces, metasurface-based transmitarray and reflectarray antennas, and metasurface-enabled microwave photonic holographic radio. He has authored or co-authored 29 refereed journal articles and 18 international conference papers. Dr. Yang is the recipient of the Outstanding Doctoral Dissertation Award of Nanjing University in 2025, and the IEEE AWPL Outstanding Reviewer Award in 2025 and 2026. He has served as an active reviewer for more than 20 journals, including IEEE TAP, IoT-J, AWPL, OJAP, Laser & Photonics Reviews, Electron, and Nanophotonics.
|
