Finite Element and Finite Difference Methods in Electromagnetic Scattering PDF Download
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Author: Michael A. Morgan
Publisher: Elsevier Science & Technology
ISBN:
Category : Electromagnetic theory
Languages : en
Pages : 408
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Book Description
Author: Michael A. Morgan
Publisher: Elsevier Science & Technology
ISBN:
Category : Electromagnetic theory
Languages : en
Pages : 408
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Book Description
Author: Piergiorgio Uslenghi
Publisher: Elsevier
ISBN: 0323142435
Category : Science
Languages : en
Pages : 812
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Book Description
Electromagnetic Scattering is a collection of studies that aims to discuss methods, state of the art, applications, and future research in electromagnetic scattering. The book covers topics related to the subject, which includes low-frequency electromagnetic scattering; the uniform asymptomatic theory of electromagnetic edge diffraction; analyses of problems involving high frequency diffraction and imperfect half planes; and multiple scattering of waves by periodic and random distribution. Also covered in this book are topics such as theories of scattering from wire grid and mesh structures; the electromagnetic inverse problem; computational methods for transmission of waves; and developments in the use of complex singularities in the electromagnetic theory. Engineers and physicists who are interested in the study, developments, and applications of electromagnetic scattering will find the text informative and helpful.
Author: Jian-Ming Jin
Publisher: John Wiley & Sons
ISBN: 1118842022
Category : Science
Languages : en
Pages : 728
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Book Description
A new edition of the leading textbook on the finite element method, incorporating major advancements and further applications in the field of electromagnetics The finite element method (FEM) is a powerful simulation technique used to solve boundary-value problems in a variety of engineering circumstances. It has been widely used for analysis of electromagnetic fields in antennas, radar scattering, RF and microwave engineering, high-speed/high-frequency circuits, wireless communication, electromagnetic compatibility, photonics, remote sensing, biomedical engineering, and space exploration. The Finite Element Method in Electromagnetics, Third Edition explains the method’s processes and techniques in careful, meticulous prose and covers not only essential finite element method theory, but also its latest developments and applications—giving engineers a methodical way to quickly master this very powerful numerical technique for solving practical, often complicated, electromagnetic problems. Featuring over thirty percent new material, the third edition of this essential and comprehensive text now includes: A wider range of applications, including antennas, phased arrays, electric machines, high-frequency circuits, and crystal photonics The finite element analysis of wave propagation, scattering, and radiation in periodic structures The time-domain finite element method for analysis of wideband antennas and transient electromagnetic phenomena Novel domain decomposition techniques for parallel computation and efficient simulation of large-scale problems, such as phased-array antennas and photonic crystals Along with a great many examples, The Finite Element Method in Electromagnetics is an ideal book for engineering students as well as for professionals in the field.
Author: Stanley Humphries, Jr.
Publisher: CRC Press
ISBN: 1000102106
Category : Technology & Engineering
Languages : en
Pages : 400
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Book Description
Field Solutions on Computers covers a broad range of practical applications involving electric and magnetic fields. The text emphasizes finite-element techniques to solve real-world problems in research and industry. After introducing numerical methods with a thorough treatment of electrostatics, the book moves in a structured sequence to advanced topics. These include magnetostatics with non-linear materials, permanent magnet devices, RF heating, eddy current analysis, electromagnetic pulses, microwave structures, and wave scattering. The mathematical derivations are supplemented with chapter exercises and comprehensive reviews of the underlying physics. The book also covers essential supporting techniques such as mesh generation, interpolation, sparse matrix inversions, and advanced plotting routines.
Author: Raymond C. Rumpf
Publisher: Artech House
ISBN: 1630819271
Category : Technology & Engineering
Languages : en
Pages : 350
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Book Description
This book teaches the finite-difference frequency-domain (FDFD) method from the simplest concepts to advanced three-dimensional simulations. It uses plain language and high-quality graphics to help the complete beginner grasp all the concepts quickly and visually. This single resource includes everything needed to simulate a wide variety of different electromagnetic and photonic devices. The book is filled with helpful guidance and computational wisdom that will help the reader easily simulate their own devices and more easily learn and implement other methods in computational electromagnetics. Special techniques in MATLAB® are presented that will allow the reader to write their own FDFD programs. Key concepts in electromagnetics are reviewed so the reader can fully understand the calculations happening in FDFD. A powerful method for implementing the finite-difference method is taught that will enable the reader to solve entirely new differential equations and sets of differential equations in mere minutes. Separate chapters are included that describe how Maxwell’s equations are approximated using finite-differences and how outgoing waves can be absorbed using a perfectly matched layer absorbing boundary. With this background, a chapter describes how to calculate guided modes in waveguides and transmission lines. The effective index method is taught as way to model many three-dimensional devices in just two-dimensions. Another chapter describes how to calculate photonic band diagrams and isofrequency contours to quickly estimate the properties of periodic structures like photonic crystals. Next, a chapter presents how to analyze diffraction gratings and calculate the power coupled into each diffraction order. This book shows that many devices can be simulated in the context of a diffraction grating including guided-mode resonance filters, photonic crystals, polarizers, metamaterials, frequency selective surfaces, and metasurfaces. Plane wave sources, Gaussian beam sources, and guided-mode sources are all described in detail, allowing devices to be simulated in multiple ways. An optical integrated circuit is simulated using the effective index method to build a two-dimensional model of the 3D device and then launch a guided-mode source into the circuit. A chapter is included to describe how the code can be modified to easily perform parameter sweeps, such as plotting reflection and transmission as a function of frequency, wavelength, angle of incidence, or a dimension of the device. The last chapter is advanced and teaches FDFD for three-dimensional devices composed of anisotropic materials. It includes simulations of a crossed grating, a doubly-periodic guided-mode resonance filter, a frequency selective surface, and an invisibility cloak. The chapter also includes a parameter retrieval from a left-handed metamaterial. The book includes all the MATLAB codes and detailed explanations of all programs. This will allow the reader to easily modify the codes to simulate their own ideas and devices. The author has created a website where the MATLAB codes can be downloaded, errata can be seen, and other learning resources can be accessed. This is an ideal book for both an undergraduate elective course as well as a graduate course in computational electromagnetics because it covers the background material so well and includes examples of many different types of devices that will be of interest to a very wide audience.
Author: Umran S. Inan
Publisher: Cambridge University Press
ISBN: 1139497987
Category : Science
Languages : en
Pages : 405
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Book Description
Beginning with the development of finite difference equations, and leading to the complete FDTD algorithm, this is a coherent introduction to the FDTD method (the method of choice for modeling Maxwell's equations). It provides students and professional engineers with everything they need to know to begin writing FDTD simulations from scratch and to develop a thorough understanding of the inner workings of commercial FDTD software. Stability, numerical dispersion, sources and boundary conditions are all discussed in detail, as are dispersive and anisotropic materials. A comparative introduction of the finite volume and finite element methods is also provided. All concepts are introduced from first principles, so no prior modeling experience is required, and they are made easier to understand through numerous illustrative examples and the inclusion of both intuitive explanations and mathematical derivations.
Author: Tony Fleming
Publisher: CRC Press
ISBN: 9814241407
Category : Medical
Languages : en
Pages : 313
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Book Description
Over the past decade biophotonics has appeared as a new department within the academic structure across the globe. With experimental work going back for more than a century, application of the scientific method has shown the importance of biophotonics within biological and medical practice. At the same time, a new mathematical description of physics and biophysics has emerged. Self-Field Theory (SFT) describes the role of photon as a binding agent between an electron and a proton within atomic structures. SFT is being rapidly accepted by the physics community as a distinct physical theory. This is now an alternative view, in addition to classical electromagnetics and the quantum theories, that forms the basis of a chemical bond. Atomic chemistry underpins biochemistry, the pharmaceutical approach to medical therapy, and has been a staple of biological and medical knowledge over the 20th century. The biophoton within SFT provides another layer of structural organization that sits underneath atomic chemistry. This book is the first to describe SFTs role within biophotonics and as such provides a theory of biophotonics capable of describing a wide range of experimental biophotonic phenomena. Inside the Photon: A Journey towards Health describes the newly discovered layer of biophotonics underlying all atomic chemistry and biochemistry. As with the variety of snowflakes, the range in biological species within flora for instance is dependent on this biophotonic layer of interaction within atomic and biomolecular structures. A new range of energies that can be balanced only within the biophotonic states are responsible for these innumerable varieties of biological species. The phonon, the quantum of acoustic, or vibrational, energy is also described and given status alongside the photon. Hence the ‘biophonon’ sits aside the biophoton as an element within biological structures. Sounds can create structure in the same way biophotons can use structure to communicate. Therapies such as homeopathy, acupuncture, traditional Chinese medicines are given fresh impetus including putative understanding of mechanism. Mitosis is understood via the cell cycle and how electric, acoustic, and magnetic fields can induce changes at the biophotonic level. The possibility arises of medical therapy without invasive surgery and without the side effects of drug-based therapies.
Author: Wei Cai
Publisher: Cambridge University Press
ISBN: 1107021057
Category : Mathematics
Languages : en
Pages : 463
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Book Description
The first book of its kind to cover a wide range of computational methods for electromagnetic phenomena, from atomistic to continuum scales, this integrated and balanced treatment of mathematical formulations, algorithms and the underlying physics enables us to engage in innovative and advanced interdisciplinary computational research.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
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Book Description
Author: Thomas G. Campbell
Publisher: Springer Science & Business Media
ISBN: 9401155844
Category : Technology & Engineering
Languages : en
Pages : 328
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Book Description
This volume contains the proceedings of the first ICASE/LaRC Work shop on Computational Electromagnetics and Its Applications conducted by the Institute for Computer Applications in Science and Engineering and NASA Langley Research Center. We had several goals in mind when we decided, jointly with the Elec tromagnetics Research Branch, to organize this workshop on Computa tional Electromagnetics ( CEM). Among our goals were a desire to obtain an overview of the current state of CEM, covering both algorithms and ap plications and their effect on NASA's activities in this area. In addition, we wanted to provide an attractive setting for computational scientists with expertise in other fields, especially computational fluid dynamics (CFD), to observe the algorithms and tools of CEM at work. Our expectation was that scientists from both fields would discover mutually beneficial inter connections and relationships. Another goal was to learn of progress in solution algorithms for electromagnetic optimization and design problems; such problems make extensive use of field solvers and computational effi ciency is at a premium. To achieve these goals we assembled the renowned group of speakers from academia and industry whose talks are contained in this volume. The papers are printed in the same order in which the talks were pre sented at the meeting. The first paper is an overview of work currently being performed in the Electromagnetic Research Branch at the Langley Research Center.
