EM scattering and applications outlines

1. ECE 621 Complex Electromagnetic Scattering and Application
Levent Sevgi
 Introduction to Electromagnetic(EM) Modeling and Simulation
 Fundamentals of EM Wave Scattering
o Maxwell Equations and Reduction
 Antenna and Radiation Problems
 Guided Wave Problems
 Wave Scattering Problems
o EM Wave – Material interaction
o Reflection, Refraction and Diffraction
 Propagation inside a Wedge Waveguide
o Analytical Mode Summation Model
 Normal Models
 Adiabatic Modes
 Intrinsic Modes
o Numerical Models
 Finite Difference Time-Domain (FDTD) Method
 Method of Moments (MoM) Approach
 Parabolic Equation (PE) Model
 Wedge Scattering
o Single-Side Illumination (SSI)
o Double-Side Illumination (DSI)
 Wedge Scattering and High Frequency Asymptotics
o Geometric Optic (GO) Solution
o Geometrical Theory of Diffraction (GTD) Model
o Uniform Theory of Diffraction (UTD) Model
o Physical Optics (PO) Model
o Physical Theory of Diffraction (PTD) Model
 Wedge Scattering and FDTD Model
o Total Fields: HFA vs. FDTD
o Diffracted Fields: HFA vs. FDTD
 Wedge Scattering and MoM Model
o Total Fields: HFA vs. MoM
o Diffracted Fields: HFA vs. MoM
o Fringe Fields: HFA vs. MoM

2. References
[1] C. A. Balanis, Advanced Engineering Electromagnetics, John Wiley & Sons, Inc., USA, 2012.
[2] P. Ya. Ufimtsev, Fundamentals of the Physical Theory of Diffraction, Wiley & Sons, Inc., USA, 2007.
[3] C. Balanis,L.Sevgi, P. Ya Ufimtsev, “Fifty Years of High Frequency Asymptotics,” RFMiCAE, International
Journal on RF and Microwave Computer-Aided Engineering, 23 (4), Jul 2013, pp.394–402.
[4] F. Hacıvelioğlu, L. Sevgi, P. Ya. Ufimtsev, “Electromagnetic Wave Scattering from a Wedge with Perfectly
Reflecting Boundaries:Analysis of Asymptotic Techniques,” IEEE Antennas and Propagation
Magazine, Vol. 53, No. 3, pp.232-253,Jun 2011.
[5] F. Hacıvelioğlu, M. A. Uslu, L. Sevgi, “A Matlab-based Virtual Tool for the Electromagnetic Wave
Scattering from a Perfectly Reflecting Wedge”, IEEE Antennas and Propagation Magazine, 53 (6), Dec
2011, pp.234–243.
[6] G. Çakır, L. Sevgi, P. Ya. Ufimtsev, “FDTD Modeling of Electromagnetic Wave Scattering from a Wedge
with Perfectly Reflecting Boundaries: Comparisons against Analytical Models and Calibration,” IEEE
Trans. on Antennas and Propagat., 60 (7), Jul 2012, pp. 3336–3342.
[7] M. A. Uslu, L. Sevgi,“Matlab-based Virtual Wedge Scattering Tool for the Comparison of High Frequency
Asymptotics and FDTD Method”, ACES Journal, 27 (9), 2012, pp.697–705.
[8] R. F. Harrington, Field Computation by Moment Method, New York: IEEE Press, (First Ed. 1968), 1993.
[9] E. Arvas, L. Sevgi, “A Tutorial on the Method of Moments,” IEEE Antennas and Propagation Magazine, 54
(3), Jun 2012, pp.260–275.
[10] G. Apaydin, L. Sevgi, “Method of Moment (MoM) Modeling for Resonating Structures: Propagation
inside a Parallel Plate Waveguide,” ACES, Int Journal on Applied Computational Electromagnetics, 27
(10), Oct 2012, pp.842–849.
[11] F. Hacıvelioğlu,L. Sevgi, P. Ya. Ufimtsev, “On the Modified Theory of Physical Optics,”IEEETrans on
Antennas and Propagat., Vol. 61, No 12, Dec 2013.
[12] G. Apaydın, L. Sevgi, “Method of Moments (MoM) Modeling of Wave Propagation insidea Wedge
Waveguide,” IEEE Trans on Antennas and Propagat., Nov 2013.
[13] G. Apaydın, F. Hacivelioglu,L. Sevgi, P. Ya. Ufimtsev, “Wedge Diffracted Waves Excited by a Line source:
Method of Moments (MoM) Modeling of Fringe Waves,” IEEE Trans on Antennas and Propagat., Oct
2013.
[14] G. Apaydın, L. Sevgi, “A Novel Wedge Diffraction ModelingusingMethod of Moments,” IEEE Trans on
Antennas and Propagat., Sep 2013.
[15] F. Hacıvelioğlu, L. Sevgi, P. Ya. Ufimtsev, “Backscattering from a Soft-Hard Strip: Primary Edge Waves
Approximation,” IEEE Antennas and Wireless Propagation Letters, Vol. 12, pp.249-252, 2013.