学　术

　　教师发展中心“名师讲堂”活动特别邀请英国皇家工程院院士、IEEE Fellow  J. (Yiannis) C. Vardaxoglou教授来校作学术交流。具体安排如下，欢迎广大师生参加。

　　一、主　题：A historic advance of periodic arrays as FSS/PRS in high gain antennas, 3D printed metaatoms and bistable auxetic metamaterials

　　二、时　间：2025年3月31日（周一）10:00-12:00

　　三、地　点：清水河校区四号科研楼A区105

　　四、主讲人：英国皇家工程院院士、IEEE Fellow  J. (Yiannis) C. Vardaxoglou 教授

　　五、主持人：电子科学与工程学院 李斌 教授

　　六、内容简介：

　　The talk will begin by covering the origins of periodic arrays as Frequency Selective Surfaces (FSS) and how these simple geometrical periodic elements were first instigated for their implementation in high gain reflector antennas for satellites and base stations. As manufacturing processes and material properties improved implementing them in commercial products became a reality. With regards to low profile antennas, placing a planar FSS at a λ/2 distance from a grounded prime radiator increased its gain by about 12-fold. The FSS has now become a Partial Reflecting Surface (PRS) and with the introduction of an Artificial Magnetic Conductor (AMC) ground, the low-profile antenna has become even more slick where the distance of the PRS from the prime radiator reduced to λ/4 or even subwavelength. The talk will also cover a new class of arrays (so called metamaterials) with meta-atoms as elements that can be manufactured in situ with advanced state-of-the-art 3D printers. The talk will highlight some salient results of these meta-atoms arrays and as well as bistable auxetic metamaterials for future electronic and medical applications.

　　七、主讲人简介：

　　Professor Vardaxoglou served as the Dean of the School of Electronic, Electrical and Systems Engineering at Loughborough University from 2006-2012. Since 2021 he has been an Emeritus professor at Loughborough University and currently, he is a visiting Professor at the State Key Laboratory of Terahertz and Millimeter Waves, Electrical Engineering Department, City University, Hong Kong.He established the 34 years old Wireless Communications Research (WiCR) group at Loughborough University and founded the Centre for Mobile Communications Research (CMCR). He was the director of Symeta research centre funded by an EPSRC Grand Challenge award, researching in a wide-ranging topics applicable to cutting-edge wireless communications technology. His current research focuses primarily on metamaterial structures, additive manufacturing (3D printing) for RF/micro/mm wave engineering. He was the principal investigator of a prestigious EPSRC’s Grand Challenge £5M (FEC) award: Synthesizing 3D Metamaterials for RF, Microwave and THz Applications. He has attracted research funding from industry and has been awarded 18 EPSRC research grants. He has published over 500 refereed journals and conference proceeding papers (with over 12000 citations) and has written a book on FSS.

　　八、主办单位：教师发展中心

　　　　承办单位：电子科学与工程学院　先进毫米波技术集成攻关研究院