|时间: 2010-04-02||发件人: admin||消息来源: nano@seu|
题目： Development of Dielectric Resonator Antenna
报告人： Prof. Kwok Wa LEUNG
(Department of Electronic Engineering, City of Hong Kong)
时 间： 2010年4月7日（周二）下午14:30-16:30
地 点： 东南大学(四牌楼校区) 李文正楼 6楼 614会议室
主办单位: IEEE AP-MTT-EMC Joint Nanjing Chapter
The dielectric resonator antenna (DRA) has been investigated extensively since it was proposed in 1983. It has a number of advantages of its small size, light weight, low loss, low cost, and ease of excitation. This seminar will first introduce the fundamental characteristics of the DRA through a study of the hemispherical DRA. Next, the multifunction rectangular DRA will be explored, first as the packaging cover, then as a DRA oscillator (DRAO), and finally as the DRA filter (DRAF). In the second multifunction part, the idea of using the DRA as an oscillator load is proposed. Unlike the conventional dielectric resonator oscillator (DRO) where the DR is merely used as a resonator, the DR here serves as both the radiating element and the oscillating load. In the last multifunction part, the DRA is simultaneously used as a filtering device. It was found that the operating frequency of the filter part can be made equal to, or different from, that of the antenna part. Since the proposed configurations are compact and cost effective, they should find applications in modern wireless communication systems.
报告人简介：Prof. Kwok Wa Leung was born in Hong Kong on April 11, 1967. He received the B.Sc. degree in Electronics and Ph.D. degree in electronic engineering from the Chinese University of Hong Kong, in 1990 and 1993, respectively.
From 1990 to 1993, he was a Graduate Assistant with the Department of Electronic Engineering, the Chinese University of Hong Kong. In 1994, he joined the Department of Electronic Engineering at City University of Hong Kong as an Assistant Professor and is currently a Professor. From Jan. to June, 2006, he was a Visiting Professor in the Department of Electrical Engineering, The Pennsylvania State University, USA.
Professor Leung was the Chairman of the IEEE AP/MTT Hong Kong Joint Chapter for the years of 2006 and 2007. He was the Chairman of the Technical Program Committee, 2008 Asia-Pacific Microwave Conference, the Co-Chair of the Technical Program Committee, IEEE TENCON, Hong Kong, Nov. 2006, and the Finance Chair of PIERS 1997, Hong Kong. His research interests include RFID tag antennas, dielectric resonator antennas, microstrip antennas, wire antennas, guided wave theory, computational electromagnetics, and mobile communications. He was as an Editor for HKIE Transactions. Currently, he is as an Associate Editor for IEEE Transactions on Antennas and Propagation and received a Transactions Commendation Certificate presented by the IEEE Antennas and Propagation Society for his exceptional performance in 2008. In addition, he is an Associate Editor for IEEE Antennas Wireless Propagation Letters and a Guest Editor of IET-Microwaves, Antennas and Propagation.
Professor Leung received the International Union of Radio Science (USRI) Young Scientists Awards in 1993 and 1995, awarded in Kyoto, Japan and St. Petersburg, Russia, respectively. He is a Fellow of HKIE and a Senior Member of IEEE.