学　术

　　人力资源部教师发展中心开展“学者论坛”系列学术活动，定期邀请与我校教师研究领域相关的知名学者，以专题报告的形式与师生分享和研讨最新研究动态和成果，旨在为教师提供学术探讨和交流的平台，开拓教师学术视野。现将第26期论坛安排如下，欢迎广大师生参加。

　　一、主　题：Systematic Antenna Design with Characteristic Modes

　　二、主讲人：瑞典隆德大学Buon Kiong Lau教授

　　三、时　间：2016年7月11日（周一）14:30

　　四、地　点：清水河校区电子工程学院科C—218

　　五、内容简介

　　Conventionally, antenna engineering relies on customizing existing antenna structures to meet a set of requirements. Although advancements in computational electromagnetics and computational power over the past decade have help to shorten the design cycle, the heavy use of numerical optimization tools also tends to diminish the important roles of creativity, insights, and experience in synthesizing new antenna structures. In this context, the Theory of Characteristic Modes (TCM) perfectly interconnects modern computational electromagnetics with the creativity, insights, and experience of traditional antenna engineering. By extracting the inherent radiation properties of a structure, TCM allows for optimal antennas to be designed in a manner which is faster and superior to current complex antenna optimization algorithms.

　　TCM performs analysis on an arbitrary structure by solving a generalized eigenvalue equation derived from the Method of Moments (MoM) impedance matrix.  This equation results in all the unique sets of currents (characteristic currents) and resonant characteristics (eigenvalues) of which the structure supports. These characteristic attributes can then be analyzed to design optimal antennas which meet a specific set of performance goals. These attributes allow new antenna researchers with little prior experience to follow a systematic, and intelligent design approach, rather than a relying on optimization algorithms or traditional brute force methods.

　　This seminar aims to illustrate how characteristic modes can be used as a systematic approach to design antennas to fulfill application specific requirements. TCM features in one or more EM software packages will be demonstrated. It is hoped that the seminar attendees will find the interest to explore the topic and discover for themselves how they can also take advantage of TCM in their own research.

　　六、主讲人简介

　　Buon Kiong Lau received the Ph.D. degree from Curtin University of Technology, Perth, Australia, in 2003, in electrical engineering. Since 2004, he has been with the Department of Electrical and Information Technology, Lund University, where he is now a Professor. His primary research interests are in various aspects of multiple antenna systems, particularly the interplay between antennas, propagation channels, and signal processing.

　　Dr. Lau is a Track Editor for the IEEE Transactions on Antennas and Propagation (TAP), for which he also served as an Associate Editor and a Senior Associate Editor.  He was a Guest Editor of the 2012 IEEE TAP Special Issue on MIMO Technology and the Lead Guest Editor of the 2016 IEEE TAP Special Issue on Theory and Application of Characteristic Modes. He was the Lead Guest Editor of the 2013 Special Cluster on Terminal Antenna Systems for 4G and Beyond for the IEEE Antennas and Wireless Propagation Letters. From 2007 to 2010, he was a Co-Chair of Subworking Group 2.2 on “Compact Antenna Systems for Terminals” (CAST) within EU COST Action 2100. From 2011 to 2015, he has been a Swedish national delegate and the Chair of Subworking Group 1.1 on “Antenna System Aspects” within COST IC1004. He was the Regional Delegate of European Association on Antennas and Propagation (EurAAP) for Region 6 (Iceland, Norway, and Sweden) between 2012 and 2015. He is also a member of the Education Committee within the IEEE Antennas and Propagation Society (AP-S), where he served as the Coordinator for the IEEE AP-S Student Design Contest from 2013-2015. Dr. Lau received an award from the IEEE Transactions on Antennas and Propagation for exceptional performance as an Associate Editor during 2014-2015.

　　In 2014, Dr. Lau initiated and has since been leading an international Special Interest Group (SIG) on TCM (characteristicmodes.org), which aims to promote research activities and applications of TCM in solving different problems in electromagnetics. He has over 20 publications in the topic of TCM, including 2 patent applications and 7 IEEE journal papers.

　　七、主办单位：人力资源部教师发展中心

　　　　承办单位：电子工程学院

　　　　　　　　　　　　　　　　　　　　　人力资源部教师发展中心

　　　　　　　　　　　　　　　　　　　　　　　2016年7月5日