Electromagnetic Diffraction Modeling and Simulation

#EM #diffraction #TED #PTD. #MoM #GTD #FEM


EM diffraction is critical in many applications including antennas and propagation. Understanding and visualizing EM wave–object interaction is crucial in designing new antenna systems, for predicting path losses through complex propagation paths, etc. In order to do that wave pieces such as diffracted waves, Fringe waves, etc., should first be studied on canonical structures. Then, complex objects can be investigated by using HFA as well as numerical methods in hybrid form intelligently. EM wave scattering from waves – objects interaction has long been investigated. Interesting wave phenomena, diffraction, occur when objects have sharp edges and tips. Methods are known as High-Frequency Asymptotics, 
such as Geometric optics (GO), Physical Optics, (PO), Geometrical Theory of Diffraction, (GTD), Uniform Theory of Diffraction (UTD), Physical Theory of Diffraction (PTD), and Theory of Edge Diffraction (TED) have been successfully applied to a variety of EM problems. Recently, numerical methods, such as the Finite Difference Time Domain (FDTD), Method of Moments (MoM), and Finite Element Method (FEM) have also 
been used in modeling EM diffraction. These powerful methods, together with novel approaches, have shown to be successful not only in modeling EM diffraction but also in distinguishing wave pieces such as scattered waves, diffracted waves, Fringe waves, etc., which is very important in visualizing and understanding complex wave–object interaction. This lecture will review all these approaches, use recently developed EM virtual tools, and present comparisons through canonical examples. 

  Date and Time




  • Date: 06 Oct 2022
  • Time: 09:00 AM to 10:00 AM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • Add_To_Calendar_icon Add Event to Calendar
  • 16 Eagle Rock Avenue
  • East Hanover, Istanbul
  • Türkiye 07936
  • Building: Hanover Manor

  • Contact Event Host
  • Dr. Ajay K. Poddar, Chair IEEE North Jersey Section, Email: akpoddar@ieee.org

  • Starts 20 September 2022 06:00 PM
  • Ends 06 October 2022 11:55 PM
  • All times are (UTC-05:00) Eastern Time (US & Canada)
  • No Admission Charge


Prof. Levent Sevgi Prof. Levent Sevgi


Electromagnetic Diffraction, Modeling and Simulation


Dr. Levent Sevgi is a Fellow of the IEEE (2009) and the recipient of the IEEE AP-S Chen-To Tai Distinguished Educator Award (2021). He received his B. Eng., M. Eng., and Ph.D. degrees in EE from Istanbul Technical University (ITU) in 1982, 1984, and 1990, respectively. He did his Ph.D. research with Prof. L. B. Felsen at Weber Research Institute / New York Polytechnic University. He was with ITU (1991–1998), TUBITAK-MRC, Information Technologies Research Institute (1999–2000), Weber Research Institute / NY Polytechnic University (1988–1990), Scientific Research Group of Raytheon Systems Canada (1998 – 1999), Center for Defense Studies, ITUV-SAM (1993 –1998 and 2000–2002) and 
with the University of Massachusetts, Lowell (UML) MA/USA as a full-time faculty (2012 – 2013), with DOGUS University (2001-2014) and Istanbul OKAN University (2014 - 2021). He has been with Istanbul ATLAS University Since Sep 2022.


Address:Professor, EMC TURKIYE, , TURKIYE, Istanbul, Türkiye