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    1. Naturvetenskap och teknik
    2. Matematik och naturvetenskap
    3. Fysik
    4. Elektricitet och magnetism

    Essentials of Computational Electromagnetics

    AvXin-Qing Sheng,Wei Song

    Inbunden, Engelska, 2012

    Del i serien IEEE Press

    1 996 kr

    Beställningsvara. Skickas inom 3-6 vardagar. Fri frakt över 249 kr.

    Beskrivning

    Essentials of Computational Electromagnetics provides an in-depth introduction of the three main full-wave numerical methods in computational electromagnetics (CEM); namely, the method of moment (MoM), the finite element method (FEM), and the finite-difference time-domain (FDTD) method. Numerous monographs can be found addressing one of the above three methods. However, few give a broad general overview of essentials embodied in these methods, or were published too early to include recent advances. Furthermore, many existing monographs only present the final numerical results without specifying practical issues, such as how to convert discretized formulations into computer programs, and the numerical characteristics of the computer programs. In this book, the authors elaborate the above three methods in CEM using practical case studies, explaining their own research experiences along with a review of current literature. A full analysis is provided for typical cases, including characteristics of numerical methods, helping beginners to develop a quick and deep understanding of the essentials of CEM. Outlines practical issues, such as how to convert discretized formulations into computer programsGives typical computer programs and their numerical characteristics along with line by line explanations of programsUses practical examples from the authors' own work as well as in the current literatureIncludes exercise problems to give readers a better understanding of the materialIntroduces the available commercial software and their limitationsThis book is intended for graduate-level students in antennas and propagation, microwaves, microelectronics, and electromagnetics. This text can also be used by researchers in electrical and electronic engineering, and software developers interested in writing their own code or understanding the detailed workings of code.Companion website for the book: www.wiley.com/go/sheng/cem

    Produktinformation

    • Utgivningsdatum:2012-08-17
    • Mått:168 x 246 x 18 mm
    • Vikt:590 g
    • Format:Inbunden
    • Språk:Engelska
    • Serie:IEEE Press
    • Antal sidor:352
    • Förlag:John Wiley & Sons Inc
    • ISBN:9780470829622

    Utforska kategorier

    • Elektricitet och magnetism inom Naturvetenskap och teknik
    • Energiteknik inom Naturvetenskap och teknik

    Mer om författaren

    Xin-Qing Sheng, Beijing Institute of Technology, ChinaXin-Qing Sheng is a Chang-Jiang Professor at the School of Information and Electronics at the Beijing Institute of Technology. His research interests include computational electromagnetics, scattering and antenna analysis, electromagnetic compatibility, and microwave imaging. He has authored and coauthored over 70 papers in refereed journals, as well as two books. He has written SINOCOM, the simulation software for scattering by complex targets. Sheng is a recipient of the 1995 President Awards of the Chinese Academy of Sciences, the 2001 One Hundred Talents Program awarded by the Chinese Academy of Sciences, the 2004 Cheung Kong Scholar Program awarded by the Ministry of Education, China. Sheng has taught the course "Modern Computational Electromagnetics" for graduate-level students using the book "A Brief Treatise on Computational Electromagnetics"(in Chinese ) for 5 years. He holds a B.S., M.S., and PhD in Electronic Engineering and Information Science from The University of Science and Technology of China. Wei Song, Beijing Institute of Technology, ChinaWei Song is an Assistant Professor of the School of Information and Electronics at the Beijing Institute of Technology. Her research interests include computational electromagnetics, scattering, antennas, and metamaterial analysis. She has published several papers on the topic of numerical methods and metamaterials. She also has contributed a chapter to FDTD Modeling of Metamaterials: Theory and Applications (Artech House Publishers, 2008). She holds a PhD in Electronic Engineering, specializing in Electromagnetics, awarded by the Antennas and Radio Propagation Research Group at University of London.

    Innehållsförteckning

    • Preface ix 1 Mathematical Formulations for Electromagnetic Fields 11.1 Deterministic Vector Partial Differential System of the Electromagnetic Fields 11.1.1 Maxwell’s Equations 11.1.2 Constitutive Relations 31.1.3 Boundary Conditions 31.1.4 Maxwell’s Equations in the Frequency Domain 51.1.5 Uniqueness Theorem 61.2 Vector Wave Equation of the Electromagnetic Fields 81.3 Vector Integral Equation of the Electromagnetic Fields 81.3.1 Equivalence Principle 91.3.2 Solution of Maxwell’s Equation in Free Space 111.3.3 Integral Equations of Metallic Scattering Problems 141.3.4 Integral Equation of Homogeneous Dielectric Scattering Problems 161.3.5 Integral Equation of Inhomogeneous Dielectric Scattering Problems 191.3.6 Integral Equations of Scattering in Layered Medium 20References 282 Method of Moments 292.1 Scattering from 3D PEC Objects 292.1.1 Formulation of the Problem 302.1.2 Discretization in MoM 302.1.3 Choice of Basis and Testing Functions 312.1.4 Discretized Integral Equation (DIE) and the Numerical Behavior Analysis 342.1.5 Handling of Singularity 362.1.6 Comparison of EFIE and MFIE 712.1.7 Interior Resonance Problem 732.1.8 Fast Multipole Method 742.1.9 Calculation of Scattered Fields 862.1.10 Writing Computer Program 892.1.11 Numerical Examples 942.1.12 Parallel Technology 1002.1.13 Strong Scalability 1062.1.14 Weak Scalability 1072.2 Scattering from Three-Dimensional Homogeneous Dielectric Objects 1092.2.1 Mathematic Formulation of the Problem 1112.2.2 Discretized Forms and Their Numerical Performance 1122.2.3 Numerical Examples 1182.2.4 Implementation of Single Integral Equation and the Numerical Characteristics 1222.3 Scattering from Three-Dimensional Inhomogeneous Dielectric Objects 1282.3.1 Mathematic Formulation of the Problem 1292.3.2 Rooftop Basis Functions 1302.3.3 Discretization of the VIE 1312.3.4 Singularity Processing 1342.3.5 Fast Solution of the Discretized VIE 1352.3.6 Numerical Examples 1362.4 Essential Points in MoM for Solving Other Problems 1362.4.1 Scattering from Two-Dimensional Objects 1382.4.2 Scattering from Periodic Structures 1412.4.3 Scattering from Two-and-Half-Dimensional Objects 1442.4.4 Radiation Problems 146References 1503 Finite-Element Method 1533.1 Eigenmodes Problems of Dielectric-Loaded Waveguides 1533.1.1 Functional Formulation 1543.1.2 Choice of Basis Functions 1593.1.3 Discretization of the Functional 1613.1.4 Imposition of the Boundary Condition 1643.1.5 Solution of the Generalized Eigenvalue Equation 1653.1.6 Computer Programming 1663.1.7 Numerical Examples 1703.2 Discontinuity Problem in Waveguides 1703.2.1 Functional Formulation 1713.2.2 Choice of the Basis Functions 1743.2.3 Discretization of the Functional 1763.2.4 Solution of the Linear Equations 1783.2.5 Extraction of the Scattering Parameters 1803.2.6 Numerical Examples 1823.3 Scattering from Three-Dimensional Objects 1843.3.1 Mathematic Formulation of the Problem 1843.3.2 Writing Computer Program 1873.3.3 Numerical Results 1903.4 Node-Edge Element 1923.4.1 Construction of Node-Edge Element 1923.4.2 Implementation of Node-Edge Element 1933.4.3 Numerical Examples 1953.5 Higher-Order Element 1963.6 Finite-Element Time-Domain Method 2003.7 More Comments on FEM 203References 2054 Finite-Difference Time-Domain Method 2074.1 Scattering from a Three-Dimensional Objects 2074.1.1 FDTD Solution Scheme 2084.1.2 Perfectly Matched Layers 2094.1.3 Yee Discretizing Scheme 2154.1.4 Discretization of the Scatterer Model 2204.1.5 Treatment on the Curved Boundary 2204.1.6 Determination of the Unit Size and the Time Step 2224.1.7 Plane Waves in Time Domain 2234.1.8 Calculation of Incident Plane Waves in Time Domain 2254.1.9 Calculation of the Radar Cross Section 2274.1.10 Computer Programing and Numerical Examples 2294.2 Treatment for Special Problems 2334.2.1 Treatments for Thin Metallic Wires 2334.2.2 Treatments for Dispersive Media 2354.2.3 Treatments for Lumped Elements 2374.3 Comparison of the MoM, FEM and FDTD Methods 239References 2405 Hybrid Methods 2435.1 Hybrid High-Frequency Asymptotic Methods and Full-Wave Numerical Methods 2445.1.1 Hybird Physical Optics Method and FEM 2445.1.2 Hybrid Physical Optics Method and Moment Method 2485.2 Hybrid Full-Wave Numerical Methods 2515.2.1 Hybrid FE-BI-MLFMA 2525.2.2 Hybrid Method Combining EFIE and MFIE 2665.2.3 Hybrid Method Combining FEM and Mode-Matching Method 271References 276Index 277