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  IEEE 杰出讲座通知(陈志宁)  

题目: Design Considerations of Antennas for MIMO Systems

演讲人:  陈志宁 博士 (IEEE Fellow, AP-S Distinguished Lecture)

时间:     2008年9月26日 (五) 下午 3:00-5:00

地点:     东南大学 (四牌楼校区) 李文正楼 六楼 614 会议室 五楼 南501 会议室

主办单位: IEEE AP-MTT-EMC Joint Chapter

               东南大学 毫米波国家重点实验室

               江苏省电子学会 天线与微波专委会


Summary: This talk discusses the key design considerations of antennas in multiple-input- multiple-output (MIMO) wireless communication systems from an antenna engineering perspective. First, the effect of antenna design on diversity performance is discussed by analyzing the formulas used for calculation of envelope correlation coefficients. The formulas are based on S-parameters and radiated fields. Then, the effect of inter-element mutual coupling on antenna efficiency and correlation is investigated. After that, the impact of mutual coupling on diversity performance is highlighted. Furthermore, two and three-dimensional patterns of the envelope correlation coefficient are presented to elaborate the evaluation of diversity performance of MIMO systems. Based on the discussion, the design considerations of antennas for MIMO systems are summarized from an antenna engineering perspective. In the end of talk, one UWB diversity antenna and one compact three-element MIMO antenna system for indoor 2.4 GHz WLAN applications are exemplified.

Zhi Ning CHEN   received his BEng (1985), MEng (1988), PhD (1993) and DoE (2003) degrees all in Electrical Engineering from Institute of Communications Engineering, China and University of Tsukuba, Japan, respectively. During 1988-1995, he taught at Institute of Communications Engineering as Teaching Assistant, Lecturer and Associate Professor as well as Southeast University, China as Postdoctoral Fellow and later Associate Professor. During 1995-1997, he joined in City University of Hong Kong, China as Research Assistant, later Research Fellow. In 1997, he was awarded JSPS Fellowship to conduct his research at University of Tsukuba, Japan. In 2001 and 2004, he visited University of Tsukuba under JSPS Fellowship Program (senior level). In 2004, he worked at IBM T. J. Watson Research Center, USA as Academic Visitor. Since 1999, he has worked with Institute for Infocomm Research (formerly known as Center for Wireless Communications and Institute for Communication Research) as Member of Technical Staff and later Principal Member of Technical Staff. His current appointments are Principal Scientist and Department Head for RF & Optical. He is concurrently holding Adjunct Professor Appointments at Southeast University, Nanjing University, National University of Singapore and Nanyang Technological University, Singapore.

     Dr Chen has organized many international technical events as general chairs, technical program committee chairs and key members of organizing committees. He is the key founder of International Workshop on Antenna Technology (iWAT).

     Dr Chen has published more than 210 journal and conference papers. He has authored and edited books entitled “Broadband Planar Antennas”, “UWB Wireless Communication” and “Antennas for Portable Devices” all published by John Wiley & Sons. He also contributed to the books of “UWB Antennas and Propagation for Communications, Radar, and Imaging” published by John Wiley & Sons as well as “Antenna Engineering Handbook” published by McGraw Hill. He is holding more than 20 granted and filed patents. He has licensed his antenna designs to industry with deals. His current research interest includes applied electromagnetics, antennas for UWB, MIMO, WLAN, WiMAX (WiBro), WBAN, and bio-imaging systems.

     Dr Chen is a Fellow of the IEEE for his contribution to small and broadband antennas for wireless applications.  (www1.i2r.a-star.edu.sg/~chenzn)

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