“电子信息名家讲坛” 是电子工程系主办的系列活动，旨在建立世界一流的电子信息领域学术交流平台，拓展广大师生的学术视野。
本期讲坛有幸邀请梁国华教授作题为《Inverse Design of Dielectric Resonator Antenna》的报告。
讲座时间、地点
6月15日16:0 0-17:00
地点：清华大学电子工程馆8-208
演讲主题
介质谐振器天线的逆向设计
Inverse Design of Dielectric Resonator Antenna
演讲内容简介
In recent years, dielectric resonator antennas (DRAs) have attracted extensive research interest due to their compact size, high efficiency, and ease of excitation. Among the key design parameters, the operating frequency plays a critical role. Traditionally, the dielectric waveguide model (DWM) has been employed to calculate the resonant frequencies of various DRA modes based on the dimensions and dielectric constant εr of the antennas.
A rectangular DRA can be configured to realize a tri-band operation by exciting the
， and
modes. When these three modes are properly combined, they can yield a wide bandwidth. To achieve this, three simultaneous transcendental equations, which correspond to the three resonant modes, must be solved to determine the three DRA dimensions, leading to a unique design solution.
In this talk, we address the inverse problem: determining the DRA dimensions of a tri-mode rectangular DRA given the dielectric constant r and three target resonant frequencies. The methodology and results of this approach will be presented in detail. Limitations of the tri-mode DRA design will also be presented in this talk.
演讲嘉宾介绍
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.
供稿｜微波与天线研究所
编辑｜陶旋姿
审核｜余潇潇 沈 渊 李 洪
