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New Development for DGTD Method and Its Applications
时间:2018-01-08 11:23    点击:   所属单位:电子工程学院
讲座名称 New Development for DGTD Method and Its Applications
讲座时间 2018-01-11 10:10:00
讲座地点 北校区图书馆西裙楼三楼学术报告厅
讲座人 赵雷教授, 江苏师范大学
讲座人介绍 Prof. Lei Zhao received the B.S. degree in mathematics from Jiangsu Normal University, Xuzhou, China, in 1997, and the M.S. degree in computational mathematics and Ph.D. degree in electromagnetic fields and microwave technology from Southeast University, Nanjing, China, in 2004 and 2007, respectively. From 2007 to 2009, he was with the Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, as a Research Associate. In 2011, he was with the Department of Electrical and Computer Engineering, National University of Singapore, Singapore, as a Research Fellow. From 2016 to 2017, he was with the Department of Electrical and Computer Engineering, University of Illinois at Urbana–Champaign, Urbana, IL, USA, as a Visiting Scholar. He joined Jiangsu Normal University, in 2009, where he is currently the Associate Director of the Jiangsu Key Laboratory of Education Big-Data Science and Engineering and the Vice Dean of the School of Mathematics and Statistics. He has authored or co-authored over 40 referred journal and conference papers. His current research interests include computational electromagnetics, bioelectromagnetics, and millimeter-wave components, including filters and antenna arrays. Dr. Zhao is a member of the Applied Computational Electromagnetics Society. He serves as a Reviewer for multiple journals and conferences, including IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, IEEE ACCESS, Progress in Electromagnetics Research, and the Applied Computational Electromagnetics Society Journal. He also serves as a Lead Guest Editor of the Applied Computational Electromagnetics Society Journal. 
讲座内容 A general numerical scheme is proposed for the waveport modeling and scattering-parameter (S-parameter) extraction of inhomogeneous waveports with the discontinuous Galerkin time-domain method. In this scheme, the waveports are truncated with perfectly matched layers with a hybrid mesh automatically extruded from the mesh of the physical device to be simulated. The waveports are then excited by a total-field/scattered-field technique, with which the incident and scattered waves can be obtained for an accurate calculation of the S-parameters. A novel eigenmode solver is also developed to calculate the required modal profiles for the eigenmodes in both homogeneous and inhomogeneous waveports. Special attention is paid to the S-parameter extraction for evanescent modes, which has been a difficult task for time-domain simulations. Numerical examples are given to validate the proposed numerical scheme.

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