今天是: 华东交通大学射频通信与传感器网络江西省重点实验室欢迎你的光临
华东交通大学射频通信与传感器 网络江西省重点实验室以射频电子学 与传感器网络研究为背景,依托华东 交通大学省级重点学科“计算机科学 与技术”和一级硕士点授权学科“信 息与通信工程”,开展射频电路系统 、量子传感器、智慧交通传……

1.基于高性能计算方法的多模多带滤波器研究获第五届江西省高等学校科技成果奖一等奖
2.量子信息的传输与量子态制备的研究获2011年江西省自然科学二等奖

3.高性能小型化微波电路获2012年江西省自然科学二等奖 
4.科技奖励业务服务平台的研究与推广2013年江西省科技进步三等奖
5.图的控制理论研究获2012年江西省自然科学奖三等奖

……

地址:江西省南昌市双港东大街808
号创新楼 5楼
邮编:330013 
Tel:0791-87046245  
传真:0791-87046245
当前位置:网站首页学术报告- 内容详细
香港城市大学IEEE Fellow 梁国华教授系列讲座

发布人:heiyu发布时间:2017-5-12 10:23:55

时间:51514:00

地点:创新楼西楼513

 

Talk #1 Designs of Millimeter-Wave Dielectric Resonator Antennas

毫米波介质谐振器天线设计

This talk will begin with the basic designs of 60-GHz dielectric resonator antennas (DRAs). Both linearly polarized (LP) and circularly polarized (CP) DRAs will be covered. Also, their 2´2 LP and CP DRA arrays will be presented. Next, two dual-frequency DRAs that simultaneously work at microwave and millimeter-wave bands will be given. A hollow DR working as 2.4-GHz DRA and 24-GHz Fabry-Perot resonator antenna (FPRA) will be presented first. It will be followed by a substrate-integrated DRA (SIDRA) that simultaneously operates at 5.2 GHz and 24 GHz. Finally, advantages of designing millimeter-wave DRAs with higher-order modes are discussed. By using higher-order modes, a simple cylindrical DRA that provides a wide bandwidth of 25.1 % (22.6–29.1 GHz) can be obtained easily. Both measured and simulated results will be presented in this talk.

 

Talk #2 Transparent Dielectric Resonator Antenna

透明介质谐振器天线

For a long time, transparent antennas have been of planar (2D) structures. Recently, 3D dielectric resonator antennas have also been developed. For glass, it is usually assumed that its refractive index is ~1.5, giving a dielectric constant of ~ 2.25. This value is too low for a DRA to have good polarization purity. However, it was generally overlooked that this dielectric constant was obtained at optical frequencies instead of microwave frequencies. Recently, a dielectric constant of ~7 was measured for glass at 2 GHz and this value is sufficient for obtaining a good radiator. In this talk, the characteristics of glass DRAs will be shown. In addition, the idea of using a 3D glass antenna as a light cover will be presented. It has been experimentally found that the lighting and antenna parts do not affect each other because they are operating in totally different frequency regions. Interesting results will be presented in this talk.

 

Talk #3 Compact Unidirectional Dielectric Resonator Antenna

紧凑型单向辐射介质谐振器天线

The unidirectional dielectric resonator (DR) antenna (DRA) with a compact ground plane is investigated. It makes use of the broadside DR HEM11d mode to obtain the required equivalent magnetic dipole. The required electric dipole is provided by the current on the small ground plane. To demonstrate the idea, a CP unidirectional DRA operating at 2.4 GHz was designed, fabricated, and tested. Reasonable agreement between the measured and simulated results is observed.


Biography

 

 

Kwok Wa Leung was born in Hong Kong. He received the B.Sc. degree in electronics and the Ph.D. degree in electronics engineering from the Chinese University of Hong Kong, Hong Kong, in 1990 and 1993, respectively. In 1994, he joined the Department of Electronic Engineering, City University of Hong Kong (CityU), where he was an Assistant Department Head from 2009 to 2013 and is currently a Chair Professor. From January to June, 2006, he was a Visiting Professor at the Department of Electrical Engineering, The Pennsylvania State University, State College, PA, USA. His research interests include antenna designs, guided wave theory, computational electromagnetics, and mobile communications.

Prof. Leung received the International Union of Radio Science (USRI) Young Scientists Awards in Japan and Russia, in 1993 and 1995, respectively. He also received the CityU Research Excellence Award in 2013, and Departmental Outstanding Teacher Awards in 2005, 2010, and 2011. He has been awarded the First Class Award (Natural Science) of 2016 Ministry of Education Award (Science & Technology). His students received the 2015 iWEM Student Best Paper Award, 2015 IEEE AP-S Eugene F. Knott Memorial Pre-Doctoral Research Award, and 2014 IEEE MTT-S Undergraduate/Pre-graduate Scholarship. He was Chair of the IEEE AP/MTT Hong Kong Joint Chapter for 2006 and 2007. He was the Technical Program Chair, 2008 Asia-Pacific Microwave Conference, Hong Kong, the Technical Program Co-Chair, 2006 IEEE TENCON, Hong Kong, and the Finance Chair of PIERS 1997, Hong Kong. He was an Editor for HKIE Transactions and a Guest Editor of IET Microwaves, Antennas and Propagation. He served as Associate Editor for the IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. Prof. Leung was also an Associate Editor of the IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (TAP) and received Transactions Commendation Certificates twice, in 2009 and 2010, for his exceptional performance. He has been the Editor-in-Chief of TAP from August 2013 to July 2016, being the first Chinese and also the first appointed from Asia since the journal was founded in 1952. He was a Distinguished Lecturer of the IEEE Antennas and Propagation Society from 2012 to 2014 and is currently a member of the AP-S Distinguished Lecturer Program Committee. He is a Fellow of IEEE.

 

梁国华,1967年出生于中国香港,现为香港城市大学电子工程系讲席教授(Chair Professor)。1993年于香港中文大学电子工程学系获得博士学位,随后加入香港城市大学,历任助理教授(19941999年)、副教授(19992006年)、教授(20062016年)和讲席教授(2016年至今)。2011年当选美国电气电子工程师学会会士(IEEE Fellow),并于20122014年期间作为IEEE AP-S杰出演讲人(Distinguished Lecturer)在世界五大洲范围共演讲22场。曾担任美国电子电气工程师学会天线与电波传播汇刊(IEEE Transactions on Antennas and Propagation)副主编(20072013年)、主编(20132016年),以及天线与无线传播快报(IEEE Antennas and Wireless Propagation Letters)副主编(20082013年)。作为天线领域国际顶级学术期刊IEEE Transactions on AP的主编,梁教授是该刊自1952年创刊以来65年历史上的首位华人学者,同时也是首位亚洲主编。2017年,梁教授以第一完成人获得国家教育部2016年度高等学校科学研究优秀成果奖自然科学一等奖——“介质谐振器天线的理论与应用技术”。

他的主要研究领域包括介质谐振器天线、线天线、槽天线、导波理论、移动通信和计算电磁学。1993年开始,一直致力于介质谐振器天线(Dielectric Resonator AntennasDRA)的基础理论与应用技术研究,并较早地提出了一批创新性的激励方式、分析方法、理论计算等实例。著作《Dielectric Resonator Antennas(Research Studies Press2003年,英国)是该研究领域的首部学术著作。在该书的第一章,与美国休斯顿大学的S. A. Long 教授(被誉为“介质谐振器天线之父”)共同对介质谐振器天线进行了详细介绍。多年来,梁教授是介质谐振器天线研究领域的先导者,相关基础研究工作在国际学术期刊上发表SCI论文153篇,其中IEEE Transactions会刊论文78篇,国际会议论文83篇,论著被引用次数超过5200余次(Google Scholar),论著被SCI他引1600余次。

                    
版权所有@ 华东交通大学射频通信与传感器网络江西省重点实验室
办公地址:江西省南昌市双港东大街 808号 创新楼 5楼  邮编:330013 Tel:0791-87046245   传真:0791-87046245
联系人: Tina 电子邮件:xy_zhang3129@sina.com
技术支持:heiyu