Raj Mittra

Numerically rigorous techniques for the computation of electromagnetic fields diffracted by an object become computationally intensive, if not impractical to handle, at high frequencies and one must resort to asymptotic methods to solve the scattering problem at short wavelengths. The asymptotic methods provide closed form expansions for the diffracted fields and are also useful for eliciting physical interpretations of the various diffraction phenomena. One of the principal objectives of this book is to discuss the different asymptotic methods in a unified manner. Although the book contains explicit formulas for computing the field diffracted by conducting or dielectric-coated objects, it also provides the mathematical foundations of the different methods and explains how they are interrelated.

The finite-difference time-domain (FDTD) method has revolutionized antenna design and electromagnetics engineering. Here's a cutting-edge book that focuses on the performance optimization and engineering applications of FDTD simulation systems. Covering the latest developments in this area, this unique resource offer professionals expert advice on the FDTD method, hardware platforms, and network systems. Moreover the book offers guidance in distinguishing between the many different electromagnetics software packages on the market today. Professionals also find a complete chapter dedicated to large multi-scale problem solving. This practical reference is supported with 250 illustrations, 128 equations, and 11 appendixes filled with helpful data processing techniques related to the FDTD method.

Artificial metamaterials have made a huge splash in antenna, microwave, and optics engineering thanks to their extraordinary electromagnetic properties. And now, modeling their unique characteristics and behaviors in electromagnetic systems just got easier. This one-stop resource gives engineers powerful finite-difference time-domain (FDTD) techniques for modeling metamaterials, complete with applications and time-saving sample FDTD scripts. This comprehensive volume provides how-to guidance in a wide range of areas that are critical to antenna design, from computing dispersion diagrams and verifying left-handedness...to characterizing the interface of metamaterial slabs. The book also reviews electromagnetic metamaterial basics and FDTD essentials, providing the foundation needed to fully understand the material.

Although electromagnetics principles can be very difficult for electrical engineers to understand, they are the essential background that engineers need to get most out of today's powerful computational tools and commercial software for optimizing microwave system performance. This authoritative resource offers a clear and complete explanation of this necessary electromagnetics knowledge, providing the analytical fundamentals needed to understand the most important methods in the field, including MoM (method of moments), FDTD (Finite Difference Time Domain) techniques, and Green's functions.The book presents all math necessary to master the material and provides number of solved problems to ensure the understanding the key concepts. It also includes multiple choice questions, appropriate for self study or courses, that help clarify concepts without any mathematical burden. Packed with over 1,300 time-saving equations, all the problems presented in the book can be solved using nothing more than calculator.CD-ROM-Included!It includes time-saving Matlab[registered] source code for the problems presented in the book which can be easily modified to help you solve similar problems in the field.

Numerical simulation is essential to electrical engineers working in antenna design, wireless communications, optical systems, and a host of other areas. This new applications-focused book provides engineers with state-of-the-art methods for predicting simulation accuracy, worked-out results for dozens of real-world problems, the latest accuracy-improving techniques, and detailed guidance for all parameters required to optimize numerical simulations. Bridging the gap between abstract academic treatments and practical engineering needs, this timely work introduces various surface integral equation formulations, approaches to discretizing the integral equations, and measures of solution accuracy. All told, this definitive resource is indispensable for all engineers and software developers working with computational simulation tools in electromagnetics and wave propagation.

The finite-difference time-domain (FTDT) method has revolutionized antenna design and electromagnetics engineering. This book raises the FDTD method to the next level by empowering it with the vast capabilities of parallel computing. It shows engineers how to exploit the natural parallel properties of FDTD to improve the existing FDTD method and to efficiently solve more complex and large problem sets. Professionals learn how to apply open source software to develop parallel software and hardware to run FDTD in parallel for their projects. The book features hands-on examples that illustrate the power of parallel FDTD and presents practical strategies for carrying out parallel FDTD. This detailed resource provides instructions on downloading, installing, and setting up the required open source software on either Windows or Linux systems, and includes a handy tutorial on parallel programming.

Multiresolution Time Domain Scheme for Electromagnetic Engineering examines the multiresolution time domain (MRTD) scheme and shows how it can be used to satisfy a variety of technical needs. This comprehensive resource presents a combination of theoretically advanced mathematical topics and their application in time domain Maxwell solution techniques. These topics include concepts of signal space, the multiresolution analysis (MRA), and scaling and wavelet functions; construction of MRA families; interconnection among the MRTD, finite difference time domain (FDTD), and MoM; MRTD boundary truncations; MRTD plane wave incidence, near-to-far-field transform, and scattering analysis; MRTD applications on microwave and millimeter wave integrated circuits; and generalized differential matrix operators (GDMOs). This text offers an invaluable, stand-alone reference for scientists, engineers, and students in a wide range of fields.

Electrical Engineering Computational Methods for Electromagnetics A volume in the IEEE/OUP Series on Electromagnetic Wave Theory Donald G. Dudley, Series Editor Computational Methods for Electromagnetics is an indispensable resource for making efficient and accurate formulations for electromagnetics applications and their numerical treatment. Employing a unified and coherent approach that is unmatched in the field, the authors detail both integral and differential equations using the method of moments and finite-element procedures. In addition, readers will gain a thorough understanding of numerical solution procedures. Topics covered include:*Two- and three-dimensional integral equation/method-of-moments formulations*Open-region finite-element formulations based on the scalar and vector Helmholtz equations*Finite difference time-domain methods*Direct and iterative algorithms for the solution of linear systems*Error analysis and the convergence behavior of numerical results*Radiation boundary conditions*Acceleration methods for periodic Green’s functions*Vector finite elementsDetail is provided to enable the reader to implement concepts in software and, in addition, a collection of related computer programs are available via the Internet. Computational Methods for Electromagnetics is designed for graduate-level classroom use or self-study, and every chapter includes problems. It will also be of particular interest to engineers working in the aerospace, defense, telecommunications, wireless, electromagnetic compatibility, and electronic packaging industries. About the IEEE/OUP Series on Electromagnetic Wave Theory Formerly the IEEE Press Series on Electromagnetic Waves, this joint series between IEEE Press and Oxford University Press offers outstanding coverage of the field, with new titles as well as reprintings and revisions of recognized classics that maintain long-term archival significance in electromagnetic waves and applications. Designed specifically for graduate students, practicing engineers, and researchers, this series provides affordable volumes that explore electromagnetic waves and applications beyond the undergraduate level.