Designs of Antennas with Novel Metal Lens

报告题目： Designs of Antennas with Novel Metal Lens

报告人： 梁国华（Kwok Wa Leung） 香港城市大学讲席教授、博导

报告时间： 2026年8月11日 14：30 – 16:30

报告地点：安徽工业大学秀山校区先进技术研究中心513

报告对象：计算机科学与技术学院及相关师生

主办单位：计算机科学与技术学院

报告人简介：Prof. LEUNG, Kwok Wa received his B.Sc. degree in Electronics and Ph.D. degree in Electronic Engineering from the Chinese University of Hong Kong in 1990 and 1993, respectively. In 1994, he joined the Department of Electrical Engineering at City University of Hong Kong, where he is currently a Chair Professor. He was the Associate Head of the Department and Associate Dean (Research) of College of Engineering. In 2006, he was a Visiting Professor in the Department of Electrical Engineering, The Pennsylvania State University, USA.

Professor Leung was the Chair of the IEEE AP/MTT Hong Kong Joint Chapter for the years of 2006 and 2007. He was a General Chair of 2022 IEEE Conference on Antenna Measurements and Applications, Guangzhou, the Technical Program Chair of 2008 Asia-Pacific Microwave Conference, Hong Kong, and the Technical Program Co-Chair of 2006 IEEE TENCON, Hong Kong. He was an Editor for HKIE Transactions and a Guest Editor of IET Microwaves, Antennas and Propagation. He was an Associate Editor for the IEEE Antennas and Wireless Propagation Letters and IEEE Transactions on Antennas and Propagation (TAP). He was selected as outstanding Associate Editor of the TAP twice in 2009 and 2010. From 2013 to 2016, Prof. Leung was appointed as the Editor-in-Chief of the TAP.

Prof. Leung received the USRI Young Scientists Awards in Japan and Russia in 1993 and 1995, respectively. He received the Departmental Outstanding Teacher Awards in 2005, 2010, and 2011. He also received the CityU Research Excellence Award 2013. He was a Distinguished Lecturer of the IEEE Antennas and Propagation Society from 2012 to 2014. He is the leading recipient of the prestigious First Class Award (Natural Science) of the 2016 Higher Education Outstanding Scientific Research Output Awards, the Ministry of Education, China. He was selected as an awardee of the Distinguished Alumni Awards for 2021, Department of Electronic Engineering, The Chinese University of Hong Kong. His students received the 2015 IEEE AP-S Eugene F. Knott Memorial Pre-Doctoral Research Award and best paper awards in international/regional conferences. He is a Fellow of IEEE。

报告内容：Wideband high-gain antennas are required for point-to-point wireless communication systems. In this talk, a new open-horn antenna integrated with a metal lens is presented. The metal lens consists of sub-channels, and the equal-path-length condition is enforced for all of the sub-channels to obtain a wideband high-gain antenna. In addition, the magnitude- and phase-distributions are separately controlled by different parts of the antenna to obtain a uniform E-field magnitude distribution at the radiating aperture. To reduce the sidelobe level, an improved version is obtained by designing a tapered E-field magnitude distribution. The original and improved designs were fabricated with the 3-D metal printing technique. Both measured and simulated results will be provided for each design, and reasonable agreement between them is obtained。