Sheng Sun
University of Electronic Science and Technology of China, Chengdu
Dr. Sheng Sun is a Full Professor with the University of Electronic Science and Technology of China, Chengdu, China. He received the B.Eng. degree in information engineering from Xi’an Jiaotong University, Xi’an, China, in 2001, and the Ph.D. degree in electrical and electronic engineering from Nanyang Technological University, Singapore, in 2006. He has authored or co-authored 1 book and 2 book chapters, and over 200 journal and conference publications. His current research interests include computational electromagnetics, microwave circuits, and antennas.
Dr. Sun currently serves as Associate Editor for IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, IET ELECTRONICS LETTERS, and INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER AIDED ENGINEERING. From 2010 to 2014, he was as an Associate Editor of IEICE Transactions on Electronics, and served as Guest Associate Editor for the Applied Computational Electromagnetics Society Journal in 2017 and the IEEE Journal on Multiscale and Multiphysics Computational Techniques in 2018. He was a recipient of the ISAP Young Scientist Travel Grant, Japan, in 2004, the Hildegard Maier Research Fellowship of the Alexander Von Humboldt Foundation, Germany, in 2008, the Outstanding Reviewer Award of IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS in 2010, as well as the General Assembly Young Scientists Award from the International Union of Radio Science in 2014.
Speech Title: Microwave Multimode Circuits and Antennas for Wireless Communication System
Abstract: The concept of multimode resonator has been widely employed for the design of microwave circuits and antennas during past several decades. There are an infinite number of modes existing in a single cavity. The theoretical analysis for the microwave filters was firstly presented by Prof. Wei-Guan Lin in 1951. There are many advantages such as saving space, weight, and cost, if more than one mode can be coupled and utilized together in a single cavity. This concept was then extended to many research areas including planar microstrip resonators for the design of different passive circuits and antennas, for example, multimode filters, power dividers, baluns, multimode patch antennas, and high-order leaky-wave antennas. Up to now, the challenging problems are still how to determine the number of possible useful modes in a single resonator and how to control more modes simultaneously. The interaction between each mode and how to control the coupling coefficient become more important and interesting research topics. In this talk, the history and design concept for the various mode properties, coupling, and small perturbation theory will be briefly reviewed. The latest research progress for the design of multimode circuits and antennas will be introduced, and the current research issues and future potential applications will also be discussed. |
