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Transformation Electromagnetics—The Magic Paradigm for deigning Cloaks, Lenses and Low-Profile Antennas
时间:2017-10-12 09:25    点击:   所属单位:电子工程学院
讲座名称 Transformation Electromagnetics—The Magic Paradigm for deigning Cloaks, Lenses and Low-Profile Antennas
讲座时间 2017-10-21 09:00:00
讲座地点 西安电子科技大学北校区图书馆西裙楼三楼报告厅
讲座人 Raj Mittra
讲座人介绍
Raj Mittra is a Professor in the Department of Electrical Engineering & Computer Science department of the University of Central Florida in Orlando, FL., where he is the Director of the Electromagnetic Communication Laboratory. Prior to joining the University of Central Florida, he worked at Penn State as a Professor in the Electrical and Computer Engineering from 1996 through June, 2015. He was a Professor in the Electrical and Computer Engineering at the University of Illinois in Urbana Champaign from 1957 through 1996, when he moved to the Penn State University. Currently, he also holds the position of Hi-Ci Professor at King Abdulaziz University in Saudi Arabia.
He is a Life Fellow of the IEEE, a Past-President of AP-S, and he has served as the Editor of the Transactions of the Antennas and Propagation Society. He won the Guggenheim Fellowship Award in 1965, the IEEE Centennial Medal in 1984, and the IEEE Millennium medal in 2000. Other honors include the IEEE/AP-S Distinguished Achievement Award in 2002, the Chen-To Tai Education Award in 2004 and the IEEE Electromagnetics Award in 2006, and the IEEE James H. Mulligan Award in 2011. 
Recently he founded the e-Journal FERMAT (www.e-fermat.org) and has been serving as the co-editor-in-chief of the same. Dr. Mittra is a Principal Scientist and President of RM Associates, a consulting company founded in 1980, which provides services to industrial and governmental organizations, both in the U.S. and abroad.
 
讲座内容
Recent years have witnessed a considerable interest in applying the “new” paradigm of Transformation Optics, or TO, to design a wide variety of electromagnetic devices, such as flat lenses, low-profile antennas, cloaks and stealthy radar targets. Theoretically speaking, the foundations of TO, aka Transformation Electromagnetics, are on very firm foundation, and they have never been challenged; however, the same cannot be said about practical applications of TO, such as reduction of RCS of realistic radar targets; design of flat lenses by transforming the geometry of a conventional convex lens; or, design of shrouds to shield an object, e.g., a supporting strut, which may be blocking the field of view of an antenna.
In this talk we will first review the fundamentals of TO, to understand the basic physics behind it. Next, we will examine the issues from a practical point of view to understand why the practical application of TO poses challenges that are difficult to overcome. Finally, we will propose a modification of the TO paradigm, which overcomes these challenges by slightly altering our design goals in a way such that realistic solutions to real-world problems become feasible. Several practical examples will be included in the talk to illustrate the application of the new improved Field Transformation algorithm.
天线与微波技术重点实验室
超高速电路设计与电磁兼容教育部重点实验室
IEEE Xi'an Section, AP/MTT-Chapter
西安电子科技大学电子工程学院
国际交流与合作处
 
 
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