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This book presents the theory of adjoint sensitivity analysis for high frequency applications through time-domain electromagnetic simulations in MATLAB(R). This theory enables the efficient estimation of the sensitivities of an arbitrary response with respect to all parameters in the considered problem. These sensitivities are required in many applications including gradient-based optimization, surrogate-based modeling, statistical analysis, and yield analysis.

Using the popular FDTD method, the book shows how wideband sensitivities can be efficiently estimated for different types of materials and structures, and includes plenty of well explained MATLAB(R) examples to help readers absorb the content more easily and to make the theory more understandable to the broadest possible audience. Topics covered include a review of FDTD and an introduction to adjoint sensitivity analysis; the adjoint variable method for frequency-independent constitutive parameters; sensitivity analysis for frequency-dependent objective functions; transient adjoint sensitivity analysis; adjoint sensitivity analysis with dispersive materials; adjoint sensitivity analysis of anisotropic structures; nonlinear adjoint sensitivity analysis; second-order adjoint sensitivities; and advanced topics.

Atef Z. Elsherbeni is the Dobelman Distinguished Chair Professor and the Electrical Engineering Department Head at Colorado School of Mines. He was President of the Applied Computational Electromagnetics Society, ACES, from 2013 to 2015, is a Fellow of the IEEE and ACES, Editor-in-Chief for ACES Journal, and a past Associate Editor to the Radio Science Journal. He has advised/co-advised 21 PhD and 33 MS students, 4 postdoctoral fellows, and 5 visiting professors.

Mohamed H. Bakr is a Professor of Electrical and Computer Engineering, McMaster University, Canada. He is a senior member of IEEE and a member of ACES and OSA. He authored/ co-authored over 220 journal and conference publications, 2 books, and 2 book chapters. He is associate editor of the IEEE Transactions on Antennas and Propagation.

Veysel Demir is an associate professor at the Department of Electrical Engineering at Northern Illinois University. He is a member of IEEE, ACES, and SigmaXi, has co-authored more than 50 technical journal and conference papers, and served as a technical program co-chair for the 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting and for the ACES 2015 conference.