MATLAB Based Electromagnetics

MATLAB Based Electromagnetics

Essentially, the book unifies two themes: it presents and explains electromagnetics using MATLAB on one side, and develops and discusses MATLAB for electromagnetics on the other.

Author: Branislav M. Notaros

Publisher: Prentice Hall

ISBN: 0132857944

Category: Technology & Engineering

Page: 363

View: 225

This title can be used to either complement another electromagnetics text, or as an independent resource. Designed primarily for undergraduate electromagnetics, it can also be used in follow-up courses on antennas, propagation, microwaves, advanced electromagnetic theory, computational electromagnetics, electrical machines, signal integrity, etc. This title also provides practical content to current and aspiring industry professionals. MATLAB-Based Electromagentics provides engineering and physics students and other users with an operational knowledge and firm grasp of electromagnetic fundamentals aimed toward practical engineering applications, by teaching them “hands on” electromagnetics through a unique and comprehensive collection of MATLAB computer exercises and projects. Essentially, the book unifies two themes: it presents and explains electromagnetics using MATLAB on one side, and develops and discusses MATLAB for electromagnetics on the other. MATLAB codes described (and listed) in TUTORIALS or proposed in other exercises provide prolonged benefits of learning. By running codes; generating results, figures, and diagrams; playing movies and animations; and solving a large variety of problems in MATLAB, in class, with peers in study groups, or individually, readers gain a deep understanding of electromagnetics.
Categories: Technology & Engineering

MATLAB based Finite Element Programming in Electromagnetic Modeling

MATLAB based Finite Element Programming in Electromagnetic Modeling

This book is a self-contained, programming-oriented and learner-centered book on finite element method (FEM), with special emphasis given to developing MATLAB® programs for numerical modeling of electromagnetic boundary value problems.

Author: Özlem Özgün

Publisher: CRC Press

ISBN: 9780429854606

Category: Technology & Engineering

Page: 428

View: 419

This book is a self-contained, programming-oriented and learner-centered book on finite element method (FEM), with special emphasis given to developing MATLAB® programs for numerical modeling of electromagnetic boundary value problems. It provides a deep understanding and intuition of FEM programming by means of step-by-step MATLAB® programs with detailed descriptions, and eventually enabling the readers to modify, adapt and apply the provided programs and formulations to develop FEM codes for similar problems through various exercises. It starts with simple one-dimensional static and time-harmonic problems and extends the developed theory to more complex two- or three-dimensional problems. It supplies sufficient theoretical background on the topic, and it thoroughly covers all phases (pre-processing, main body and post-processing) in FEM. FEM formulations are obtained for boundary value problems governed by a partial differential equation that is expressed in terms of a generic unknown function, and then, these formulations are specialized to various electromagnetic applications together with a post-processing phase. Since the method is mostly described in a general context, readers from other disciplines can also use this book and easily adapt the provided codes to their engineering problems. After forming a solid background on the fundamentals of FEM by means of canonical problems, readers are guided to more advanced applications of FEM in electromagnetics through a survey chapter at the end of the book.
Categories: Technology & Engineering

Conceptual Electromagnetics

Conceptual Electromagnetics

This is a textbook on electromagnetic fields and waves completely based on conceptual understanding of electromagnetics.

Author: Branislav M. Notaroš

Publisher: CRC Press

ISBN: 9781498770699

Category: Technology & Engineering

Page: 550

View: 740

This is a textbook on electromagnetic fields and waves completely based on conceptual understanding of electromagnetics. The text provides operational knowledge and firm grasp of electromagnetic fundamentals aimed toward practical engineering applications by combining fundamental theory and a unique and comprehensive collection of as many as 888 conceptual questions and problems in electromagnetics. Conceptual questions are designed to strongly enforce and enhance both the theoretical concepts and understanding and problem-solving techniques and skills in electromagnetics.
Categories: Technology & Engineering

Fundamentals of Electromagnetics with MATLAB

Fundamentals of Electromagnetics with MATLAB

This second edition comes from your suggestions for a more lively format, self-learning aids for students, and the need for applications and projects without being distracted from EM Principles.

Author: Karl Erik Lonngren

Publisher: SciTech Publishing

ISBN: 9781891121586

Category: Science

Page: 528

View: 435

This second edition comes from your suggestions for a more lively format, self-learning aids for students, and the need for applications and projects without being distracted from EM Principles. Flexibility Choose the order, depth, and method of reinforcing EM Principles—the PDF files on CD provide Optional Topics, Applications, and Projects.Affordability Not only is this text priced below competing texts, but also the topics on CD (and downloadable to registered users) provide material sufficient for a second term of study with no additional book for students to buy.MATLAB This book takes full advantage of MATLAB's power to motivate and reinforce EM Principles. No other EM books is better integrated with MATLAB. The second edition is even richer and easier to incorporate into course use with the new, self-paced MATLAB tutorials on the CD and available to registered users.
Categories: Science

Numerical Techniques in Electromagnetics with MATLAB Third Edition

Numerical Techniques in Electromagnetics with MATLAB  Third Edition

Most notable among these are the improvements made to the standard algorithm for the finite-difference time-domain (FDTD) method and treatment of absorbing boundary conditions in FDTD, finite element, and transmission-line-matrix methods.

Author: Matthew N.O. Sadiku

Publisher: CRC Press

ISBN: 9781439883044

Category: Technology & Engineering

Page: 648

View: 637

Despite the dramatic growth in the availability of powerful computer resources, the EM community lacks a comprehensive text on the computational techniques used to solve EM problems. The first edition of Numerical Techniques in Electromagnetics filled that gap and became the reference of choice for thousands of engineers, researchers, and students. This third edition of the bestselling text reflects the continuing increase in awareness and use of numerical techniques and incorporates advances and refinements made in recent years. Most notable among these are the improvements made to the standard algorithm for the finite-difference time-domain (FDTD) method and treatment of absorbing boundary conditions in FDTD, finite element, and transmission-line-matrix methods. The author also has added a chapter on the method of lines. Numerical Techniques in Electromagnetics with MATLAB®, Third Edition continues to teach readers how to pose, numerically analyze, and solve EM problems, to give them the ability to expand their problem-solving skills using a variety of methods, and to prepare them for research in electromagnetism. Now the Third Edition goes even further toward providing a comprehensive resource that addresses all of the most useful computation methods for EM problems and includes MATLAB code instead of FORTRAN.
Categories: Technology & Engineering

Modern Approach to Solving Electromagnetics in MATLAB

Modern Approach to Solving Electromagnetics in MATLAB

The text reveals inherent simplistic tools of MATLAB as how-to-implement approach for the topics which usually belong under the banner of basic electromagnetic theory.

Author: Mohammad Nuruzzaman

Publisher: Booksurge Publishing

ISBN: 1439208573

Category: Science

Page: 322

View: 816

The text reveals inherent simplistic tools of MATLAB as how-to-implement approach for the topics which usually belong under the banner of basic electromagnetic theory. Coherent account of electromagnetic topics and their computer exercises have been essential for the study and research in the electrical sciences and applied physics - in this regard the text coverage is unparallel and immediately exercisable. MATLAB embedded functions are demonstrated to be congenial despite abstractness and higher dimensionality of electromagnetics. Equipped neoteric tools will benefit undergraduate and graduate students and research engineers in the field.
Categories: Science

Computational Electromagnetics with MATLAB Fourth Edition

Computational Electromagnetics with MATLAB  Fourth Edition

The widely used software packages for CEM include: • Numerical
Electromagnetic Codes (NEC): This is based on the method of moments (MoM)
and was developed at Livermore National Laboratory. It is used for frequency
domain antenna ...

Author: Matthew N.O. Sadiku

Publisher: CRC Press

ISBN: 9781351365093

Category: Technology & Engineering

Page: 687

View: 719

This fourth edition of the text reflects the continuing increase in awareness and use of computational electromagnetics and incorporates advances and refinements made in recent years. Most notable among these are the improvements made to the standard algorithm for the finite-difference time-domain (FDTD) method and treatment of absorbing boundary conditions in FDTD, finite element, and transmission-line-matrix methods. It teaches the readers how to pose, numerically analyze, and solve EM problems, to give them the ability to expand their problem-solving skills using a variety of methods, and to prepare them for research in electromagnetism. Includes new homework problems in each chapter. Each chapter is updated with the current trends in CEM. Adds a new appendix on CEM codes, which covers commercial and free codes. Provides updated MATLAB code.
Categories: Technology & Engineering

Electromagnetic Waves Materials and Computation with MATLAB

Electromagnetic Waves  Materials  and Computation with MATLAB

The list also includes the textbooks my professors used in teaching me
electromagnetics . I list them in the acknowledgments section since I am certain
that part of my lecture notes is based on these sources . I tried to reference in the
chapters ...

Author: Dikshitulu K. Kalluri

Publisher: CRC Press

ISBN: 9781439838686

Category: Technology & Engineering

Page: 886

View: 628

Readily available commercial software enables engineers and students to perform routine calculations and design without necessarily having a sufficient conceptual understanding of the anticipated solution. The software is so user-friendly that it usually produces a beautiful colored visualization of that solution, often camouflaging the fact that t
Categories: Technology & Engineering

Electromagnetic Modeling and Simulation

Electromagnetic Modeling and Simulation

F. Hacıvelioğlu, M. A. Uslu, L. Sevgi, “A Matlab-Based Simulator forthe
Electromagnetic Wave Scattering from a Wedgewith Perfectly Reflecting
Boundaries,” IEEE Antennas and Propagation Magazine,53(6), 2011, pp. 234–
243. O. Ozgun,G.

Author: Levent Sevgi

Publisher: John Wiley & Sons

ISBN: 9781118877111

Category: Science

Page: 696

View: 700

This unique book presents simple, easy-to-use, but effectiveshort codes as well as virtual tools that can be used byelectrical, electronic, communication, and computer engineers in abroad range of electrical engineering problems Electromagnetic modeling is essential to the design and modelingof antenna, radar, satellite, medical imaging, and otherapplications. In this book, author Levent Sevgi explains techniquesfor solving real-time complex physical problems using MATLAB-basedshort scripts and comprehensive virtual tools. Unique in coverage and tutorial approach, ElectromagneticModeling and Simulation covers fundamental analytical andnumerical models that are widely used in teaching, research, andengineering designs—including mode and ray summationapproaches with the canonical 2D nonpenetrable parallel platewaveguide as well as FDTD, MoM, and SSPE scripts. The book alsoestablishes an intelligent balance among the essentials of EMMODSIM: The Problem (the physics), The Theory and Models(mathematical background and analytical solutions), and TheSimulations (code developing plus validation, verification, andcalibration). Classroom tested in graduate-level and short courses,Electromagnetic Modeling and Simulation: Clarifies concepts through numerous worked problems and quizzesprovided throughout the book Features valuable MATLAB-based, user-friendly, effectiveengineering and research virtual design tools Includes sample scenarios and video clips recorded duringcharacteristic simulations that visually impactlearning—available on wiley.com Provides readers with their first steps in EM MODSIM as well astools for medium and high-level code developers and users Electromagnetic Modeling and Simulation thoroughly coversthe physics, mathematical background, analytical solutions, andcode development of electromagnetic modeling, making it an idealresource for electrical engineers and researchers.
Categories: Science

Electromagnetics

Electromagnetics

Electromagnetics is a thorough text that enables readers to readily grasp EM fundamentals, develop true problem-solving skills, and really understand and like the material.

Author: Branislav M. Notaros

Publisher: Pearson College Division

ISBN: 0132433842

Category: Science

Page: 815

View: 265

Electromagnetics is a thorough text that enables readers to readily grasp EM fundamentals, develop true problem-solving skills, and really understand and like the material. It is meant as an "ultimate resource" for undergraduate electromagnetics. FEATURES: 371 outstanding worked examples, with very detailed and instructive solutions, tightly coupled to the theory650 outstanding homework problems, fully supported by solved examples (a demo example for every problem)New pedagogy and clear, rigorous, complete, and logical presentation of material with no missing stepsGreat flexibility for different options in coverage, including the transmission-lines-first approach500 unique multiple-choice conceptual questions, for active teaching/learning and assessment, available on-line400 MATLAB computer exercises and projects, many with tutorials and m files, available on-line www.pearsonhighered.com/notaros Branislav M. Notaros is Associate Professor of Electrical and Computer Engineering at Colorado State University, where he conducts research in computational electromagnetics, antennas, and microwaves. He received the Ph.D. degree from the University of Belgrade, Yugoslavia, where he then served as Assistant Professor. He also was Assistant and Associate Professor at the University of Massachusetts Dartmouth. He has published three workbooks and 80 papers. Prof. Notaros was the recipient of the 2005 IEEE MTT-S Microwave Prize, 1999 IEE Marconi Premium, 1999 URSI Young Scientist Award, 2005 UMass Dartmouth Scholar of the Year Award, 2004 UMD COE Dean's Recognition Award, and 2009 CSU Excellence in Teaching Award.
Categories: Science

Applied Electromagnetics Using QuickFieldTM MATLAB

Applied Electromagnetics Using QuickFieldTM   MATLAB

James R. Claycomb. APPLIED ELECTROMAGNETICS Using QuickFieldTMand
MATLAB® License, DiscLaimer of LiabiLity, anD LimiteD APPLIED
ELECTROMAGNETICS Using Qm'ckField“'and APPLIED ELECTROMAGNETICS
.

Author: J. R. Claycomb

Publisher: Jones & Bartlett Learning

ISBN: 9780763777517

Category: Technology & Engineering

Page: 407

View: 748

Intended as a textbook for electromagnetics or a reference for practicing engineers, the book uses the computer software packages QuickField and MATLAB for visualizing electric and magnetic fields, and for calculating their resulting forces, charge, and current distributions. The concepts of electromagnetism “come alive” as the readers model real world problems and experiment with currents in biological tissue under electrical stimulation, for superconducting magnetic shielding, Monte Carlo methods, etc. The accompanying CD includes a fully functional version of QuickField (widely used in industry), as well as numerous demonstrations and simulations with MATLAB.
Categories: Technology & Engineering

Computational Electromagnetics

Computational Electromagnetics

This book introduces three of the most popular numerical methods for simulating electromagnetic fields: the finite difference method, the finite element method and the method of moments.

Author: Thomas Rylander

Publisher: Springer Science & Business Media

ISBN: 9781461453512

Category: Computers

Page: 288

View: 787

Computational Electromagnetics is a young and growing discipline, expanding as a result of the steadily increasing demand for software for the design and analysis of electrical devices. This book introduces three of the most popular numerical methods for simulating electromagnetic fields: the finite difference method, the finite element method and the method of moments. In particular it focuses on how these methods are used to obtain valid approximations to the solutions of Maxwell's equations, using, for example, "staggered grids" and "edge elements." The main goal of the book is to make the reader aware of different sources of errors in numerical computations, and also to provide the tools for assessing the accuracy of numerical methods and their solutions. To reach this goal, convergence analysis, extrapolation, von Neumann stability analysis, and dispersion analysis are introduced and used frequently throughout the book. Another major goal of the book is to provide students with enough practical understanding of the methods so they are able to write simple programs on their own. To achieve this, the book contains several MATLAB programs and detailed description of practical issues such as assembly of finite element matrices and handling of unstructured meshes. Finally, the book aims at making the students well-aware of the strengths and weaknesses of the different methods, so they can decide which method is best for each problem. In this second edition, extensive computer projects are added as well as new material throughout. Reviews of previous edition: "The well-written monograph is devoted to students at the undergraduate level, but is also useful for practising engineers." (Zentralblatt MATH, 2007)
Categories: Computers

TheFinite Difference Time Domain Method for Electromagnetics with MATLAB Simulations

TheFinite Difference Time Domain Method for Electromagnetics with MATLAB   Simulations

This book introduces the powerful Finite-Difference Time-Domain method to students and interested researchers and readers.

Author: Atef Z. Elsherbeni

Publisher: IET

ISBN: 9781613531754

Category: Science

Page: 558

View: 580

This book introduces the powerful Finite-Difference Time-Domain method to students and interested researchers and readers. An effective introduction is accomplished using a step-by-step process that builds competence and confidence in developing complete working codes for the design and analysis of various antennas and microwave devices. This book will serve graduate students, researchers, and those in industry and government who are using other electromagnetics tools and methods for the sake of performing independent numerical confirmation. No previous experience with finite-difference methods is assumed of readers. Key features Presents the fundamental techniques of the FDTD method at a graduate level, taking readers from conceptual understanding to actual program development. Full derivations are provided for final equations. Includes 3D illustrations to aid in visualization of field components and fully functional MATLAB® code examples. Completely revised and updated for this second edition, including expansion into advanced techniques such as total field/scattered field formulation, dispersive material modeling, analysis of periodic structures, non-uniform grid, and graphics processing unit acceleration of finite-difference time-domain method.
Categories: Science

Low Frequency Electromagnetic Modeling for Electrical and Biological Systems Using MATLAB

Low Frequency Electromagnetic Modeling for Electrical and Biological Systems Using MATLAB

This book covers the basic concepts of computational low-frequency electromagnetics in an application-based format and hones the knowledge of these concepts with hands-on MATLAB® modules. The book is divided into five parts.

Author: Sergey N. Makarov

Publisher: John Wiley & Sons

ISBN: 9781119052562

Category: Science

Page: 648

View: 854

Provides a detailed and systematic description of the Method of Moments (Boundary Element Method) for electromagnetic modeling at low frequencies and includes hands-on, application-based MATLAB® modules with user-friendly and intuitive GUI and a highly visualized interactive output. Includes a full-body computational human phantom with over 120 triangular surface meshes extracted from the Visible Human Project® Female dataset of the National library of Medicine and fully compatible with MATLAB and major commercial FEM/BEM electromagnetic software simulators. This book covers the basic concepts of computational low-frequency electromagnetics in an application-based format and hones the knowledge of these concepts with hands-on MATLAB® modules. The book is divided into five parts. Part 1 discusses low-frequency electromagnetics, basic theory of triangular surface mesh generation, and computational human phantoms. Part 2 covers electrostatics of conductors and dielectrics, and direct current flow. Linear magnetostatics is analyzed in Part 3. Part 4 examines theory and applications of eddy currents. Finally, Part 5 evaluates nonlinear electrostatics. Application examples included in this book cover all major subjects of low-frequency electromagnetic theory. In addition, this book includes complete or summarized analytical solutions to a large number of quasi-static electromagnetic problems. Each Chapter concludes with a summary of the corresponding MATLAB® modules. Combines fundamental electromagnetic theory and application-oriented computation algorithms in the form of stand alone MATLAB® modules Makes use of the three-dimensional Method of Moments (MoM) for static and quasistatic electromagnetic problems Contains a detailed full-body computational human phantom from the Visible Human Project® Female, embedded implant models, and a collection of homogeneous human shells Low-Frequency Electromagnetic Modeling for Electrical and Biological Systems Using MATLAB® is a resource for electrical and biomedical engineering students and practicing researchers, engineers, and medical doctors working on low-frequency modeling and bioelectromagnetic applications. Sergey N. Makarov is a Professor in the Department of Electrical and Computer Engineering at Worcester Polytechnic Institute (WPI). Gregory M. Noetscher is a Senior Research Electrical Engineer at the U.S. Army Natick Soldier Research, Development and Engineering Center (NSRDEC) in Natick, MA. Ara Nazarian is an Assistant Professor of Orthopaedic Surgery, Harvard Medical School, Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center (BIDMC).
Categories: Science

Ultra Wideband Short Pulse Electromagnetics 8

Ultra Wideband Short Pulse Electromagnetics 8

For this, several Matlab-based signal/image processing algorithms11 are tested
and some related experimental results are reported. 2. UWBR SYSTEM WITH
ONE RX CHANNEL The 1-Tx &. 1 Antenna & Propagation Laboratory, University
of ...

Author: Carl E. Baum

Publisher: Springer Science & Business Media

ISBN: 038773046X

Category: Science

Page: 260

View: 368

The purpose of the Ultra-Wideband Short-Pulse Electromagnetics Conference series is to focus on advanced technologies for the generation, radiation and detection of ultra-wideband short pulse signals, taking into account their propagation and scattering from and coupling to targets of interest. This Conference series reports on developments in supporting mathematical and numerical methods and presents current and potential future applications of the technology. Ultra-Wideband Short-Pulse Electromagnetics 8 is based on the American Electromagnetics 2006 conference held from June 3-7 in Albuquerque, New Mexico. Topical areas covered in this volume include pulse radiation and measurement, scattering theory, target detection and identification, antennas, signal processing, and communications.
Categories: Science

Computational Methods in Geophysical Electromagnetics

Computational Methods in Geophysical Electromagnetics

This monograph provides a framework for students and practitioners who are working on the solution of electromagnetic imaging in geophysics.

Author: Eldad Haber

Publisher: SIAM

ISBN: 9781611973792

Category: Science

Page: 150

View: 189

This monograph provides a framework for students and practitioners who are working on the solution of electromagnetic imaging in geophysics. Bridging the gap between theory and practical applied material (for example, inverse and forward problems), it provides a simple explanation of finite volume discretization, basic concepts in solving inverse problems through optimization, a summary of applied electromagnetics methods, and MATLAB?÷code for efficient computation.
Categories: Science

Numerical Methods for Engineering

Numerical Methods for Engineering

This book requires only one core course of electromagnetics, allowing it to be useful both at the senior and beginning graduate levels.

Author: Karl F. Warnick

Publisher: Scitech Pub Incorporated

ISBN: 1891121995

Category: Technology & Engineering

Page: 343

View: 310

This textbook teaches students to create computer codes used to engineer antennas, microwave circuits, and other critical technologies for wireless communications and other applications of electromagnetic fields and waves. Worked code examples are provided for MATLAB technical computing software. It is the only textbook on numerical methods that begins at the undergraduate engineering student level but bring students to the state-of-the-art by the end of the book. It focuses on the most important and popular numerical methods, going into depth with examples and problem sets of escalating complexity. This book requires only one core course of electromagnetics, allowing it to be useful both at the senior and beginning graduate levels. Developing and using numerical methods in a powerful tool for students to learn the principles of intermediate and advanced electromagnetics. This book fills the missing space of current textbooks that either lack depth on key topics (particularly integral equations and the method of moments) and where the treatment is not accessible to students without an advanced theory course. Important topics include: Method of Moments; Finite Difference Time Domain Method; Finite Element Method; Finite Element Method-Boundary Element Method; Numerical Optimization; and Inverse Scattering.
Categories: Technology & Engineering

Introduction to the Finite difference Time domain FDTD Method for Electromagnetics

Introduction to the Finite difference Time domain  FDTD  Method for Electromagnetics

MATLAB. Implementation. of. the. 1D. FDTD. Model. of. a. Uniform. Transmission.
Line. A.1 TRANSLATING THE DISCRETE FDTD EQUATIONS TO A HIGH-LEVEL
PROGRAMMING LANGUAGE Chapter 2 studied with some detail the FDTD ...

Author: Stephen D. Gedney

Publisher: Morgan & Claypool Publishers

ISBN: 9781608455225

Category: Technology & Engineering

Page: 236

View: 793

Introduction to the Finite-Difference Time-Domain (FDTD) Method for Electromagnetics provides a comprehensive tutorial of the most widely used method for solving Maxwell's equations -- the Finite Difference Time-Domain Method. This book is an essential guide for students, researchers, and professional engineers who want to gain a fundamental knowledge of the FDTD method. It can accompany an undergraduate or entry-level graduate course or be used for self-study. The book provides all the background required to either research or apply the FDTD method for the solution of Maxwell's equations to practical problems in engineering and science. Introduction to the Finite-Difference Time-Domain (FDTD) Method for Electromagnetics guides the reader through the foundational theory of the FDTD method starting with the one-dimensional transmission-line problem and then progressing to the solution of Maxwell's equations in three dimensions. It also provides step by step guides to modeling physical sources, lumped-circuit components, absorbing boundary conditions, perfectly matched layer absorbers, and sub-cell structures. Post processing methods such as network parameter extraction and far-field transformations are also detailed. Efficient implementations of the FDTD method in a high level language are also provided. Table of Contents: Introduction / 1D FDTD Modeling of the Transmission Line Equations / Yee Algorithm for Maxwell's Equations / Source Excitations / Absorbing Boundary Conditions / The Perfectly Matched Layer (PML) Absorbing Medium / Subcell Modeling / Post Processing
Categories: Technology & Engineering

Electromagnetic Scattering Using the Iterative Multiregion Technique

Electromagnetic Scattering Using the Iterative Multiregion Technique

Lincoln Laboratory has developed a way for implementing parallel computation
using Matlab, version 7 [44]. ... and send these data to the other processors,
where new currents are generated at each processor based on the new
excitation.

Author: Mohamed Hassan Al Sharkawy

Publisher: Morgan & Claypool Publishers

ISBN: 9781598295351

Category: Science

Page: 99

View: 644

In this work, an iterative approach using the finite difference frequency domain method is presented to solve the problem of scattering from large-scale electromagnetic structures. The idea of the proposed iterative approach is to divide one computational domain into smaller subregions and solve each subregion separately. Then the subregion solutions are combined iteratively to obtain a solution for the complete domain. As a result, a considerable reduction in the computation time and memory is achieved. This procedure is referred to as the iterative multiregion (IMR) technique.Different enhancement procedures are investigated and introduced toward the construction of this technique. These procedures are the following: 1) a hybrid technique combining the IMR technique and a method of moment technique is found to be efficient in producing accurate results with a remarkable computer memory saving; 2) the IMR technique is implemented on a parallel platform that led to a tremendous computational time saving; 3) together, the multigrid technique and the incomplete lower and upper preconditioner are used with the IMR technique to speed up the convergence rate of the final solution, which reduces the total computational time. Thus, the proposed iterative technique, in conjunction with the enhancement procedures, introduces a novel approach to solving large open-boundary electromagnetic problems including unconnected objects in an efficient and robust way.Contents: Basics of the FDFD Method / IMR Technique for Large-Scale Electromagnetic Scattering Problems: 3D Case / IMR Technique for Large-Scale Electromagnetic Scattering Problems: 2D Case / The IMR Algorithm Using a Hybrid FDFD and Method of Moments Technique / Parallelization of the Iterative Multiregion Technique / Combined Multigrid Technique and IMR Algorithm / Concluding Remarks / Appendices
Categories: Science

Computational Electromagnetics for RF and Microwave Engineering

Computational Electromagnetics for RF and Microwave Engineering

With running examples through the book and end-of-chapter problems to aid understanding, this is ideal for professional engineers and senior undergraduate/graduate students who need to master CEM and avoid common pitfalls in writing code ...

Author: David B. Davidson

Publisher: Cambridge University Press

ISBN: 9781139492812

Category: Technology & Engineering

Page:

View: 804

This hands-on introduction to computational electromagnetics (CEM) links theoretical coverage of the three key methods - the FDTD, MoM and FEM - to open source MATLAB codes (freely available online) in 1D, 2D and 3D, together with many practical hints and tips gleaned from the author's 25 years of experience in the field. Updated and extensively revised, this second edition includes a new chapter on 1D FEM analysis, and extended 3D treatments of the FDTD, MoM and FEM, with entirely new 3D MATLAB codes. Coverage of higher-order finite elements in 1D, 2D and 3D is also provided, with supporting code, in addition to a detailed 1D example of the FDTD from a FEM perspective. With running examples through the book and end-of-chapter problems to aid understanding, this is ideal for professional engineers and senior undergraduate/graduate students who need to master CEM and avoid common pitfalls in writing code and using existing software.
Categories: Technology & Engineering