Periodic structures are of great importance in electromagnetics due to their wide range of applications such as frequency selective surfaces (FSS), electromagnetic band gap (EBG) structures, periodic absorbers, meta-materials, and many others. The aim of this book is to develop efficient computational algorithms to analyze the scattering properties of various electromagnetic periodic structures using the finite-difference time-domain periodic boundary condition (FDTD/PBC) method. A new FDTD/PBC-based algorithm is introduced to analyze general skewed grid periodic structures while another algorithm is developed to analyze dispersive periodic structures. Moreover, the proposed algorithms are successfully integrated with the generalized scattering matrix (GSM) technique, identified as the hybrid FDTD-GSM algorithm, to efficiently analyze multilayer periodic structures. All the developed algorithms are easy to implement and are efficient in both computational time and memory usage. These algorithms are validated through several numerical test cases. The computational methods presented in this book will help scientists and engineers to investigate and design novel periodic structures and to explore other research frontiers in electromagnetics. Table of Contents: Introduction / FDTD Method and Periodic Boundary Conditions / Skewed Grid Periodic Structures / Dispersive Periodic Structures / Multilayered Periodic Structures / Conclusions

About the Author:

Dr. Khaled ElMahgoub received B.Sc. and M.Sc. degrees in electronics and electrical communications engineering from Cairo University, Egypt, in 2001 and 2006, respectively. He received his Ph.D. in electrical engineering from the University of Mississippi, USA in 2010. From 2007-2010, he was a teaching and research assistant at the University of Mississippi. Prior to that, from 2001-2006 he has been a teaching and research assistant at Cairo University. Currently, he is working as senior validation engineer at Trimble Navigation, Cambridge, MA, USA, possessing over six years of experience in the industry. Throughout his academic years, he coauthored over 20 technical journals and conference papers. He is the main co-author of the book entitled Enhancements to Low Density Parity Check Codes: Application to the WiMAX System, Lambert Academic Publishing, 2010. ElMahgoub is editor assistant for Applied Computational Electromagnetics Society (ACES) Journal. He is also a frequent reviewer for many scientific journals, conferences, books, and has chaired technical sessions in international conferences. He is a member of IEEE, ACES, and Phi Kappa Phi honor society. His current research interests include RFID systems, channel coding, FDTD, antenna design, and numerical techniques for electromagnetics.

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