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Surface Impedance Boundary Conditions
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Book Synopsis Surface Impedance Boundary Conditions by : Sergey V. Yuferev
Download or read book Surface Impedance Boundary Conditions written by Sergey V. Yuferev and published by CRC Press. This book was released on 2018-09-03 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Impedance Boundary Conditions is perhaps the first effort to formalize the concept of SIBC or to extend it to higher orders by providing a comprehensive, consistent, and thorough approach to the subject. The product of nearly 12 years of research on surface impedance, this book takes the mystery out of the largely overlooked SIBC. It provides an understanding that will help practitioners select, use, and develop these efficient modeling tools for their own applications. Use of SIBC has often been viewed as an esoteric issue, and they have been applied in a very limited way, incorporated in computation as an ad hoc means of simplifying the treatment for specific problems. Apply a Surface Impedance "Toolbox" to Develop SIBCs for Any Application The book not only outlines the need for SIBC but also offers a simple, systematic method for constructing SIBC of any order based on a perturbation approach. The formulation of the SIBC within common numerical techniques—such as the boundary integral equations method, the finite element method, and the finite difference method—is discussed in detail and elucidated with specific examples. Since SIBC are often shunned because their implementation usually requires extensive modification of existing software, the authors have mitigated this problem by developing SIBCs, which can be incorporated within existing software without system modification. The authors also present: Conditions of applicability, and errors to be expected from SIBC inclusion Analysis of theoretical arguments and mathematical relationships Well-known numerical techniques and formulations of SIBC A practical set of guidelines for evaluating SIBC feasibility and maximum errors their use will produce A careful mix of theory and practical aspects, this is an excellent tool to help anyone acquire a solid grasp of SIBC and maximize their implementation potential.
Book Synopsis Impedance Boundary Conditions In Electromagnetics by : Daniel J. Hoppe
Download or read book Impedance Boundary Conditions In Electromagnetics written by Daniel J. Hoppe and published by CRC Press. This book was released on 1995-03-01 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic scattering from complex objects has been an area of in-depth research for many years. A variety of solution methodologies have been developed and utilised for the solution of ever increasingly complex problems. Among these methodologies, the subject of impedance boundary conditions has interested the authors for some time. In short, impedance boundary conditions allow one to replace a complex structure with an appropriate impedance relationship between the electric and magnetic fields on the surface of the object. This simplifies the solution of the problem considerably, allowing one to ignore the complexity of the internal structure beneath the surface. This book examines impedance boundary conditions in electromagnetics. The introductory chapter provides a presentation of the role of the impedance boundary conditions in solving practical electromagnetic problems and some historical background. One of the main objectives of this book is to present a unified and thorough discussion of this important subject. A method based on a spectral domain approach is presented to derive the Higher Order Impedance Boundary Conditions (HOIBC). The method includes all of the existing approximate boundary conditions, such as the Standard Impedence Boundary Condition, the Tensor Impedence Boundary Condition and the Generalised Impedance Boundary Conditions, as special cases. The special domain approach is applicable to complex coatings and surface treatments as well as simple dielectric coatings. The spectral domain approach is employed to determine the appropriate boundary conditions for planar dielectric coatings, chiral coatings and corregated conductors. The accuracy of the proposal boundary conditions is discussed. The approach is then extended to include the effects of curvature and is applied to curved dielectric and chiral coatings. Numerical data is presented to critically assess the accuracy of the results obtained using various forms of the impedence boundary conditions. A number of appendices that provide more detail on some of the topics addressed in the main body of the book and a selective list of references directly related to the topics addressed in this book are also included.
Book Synopsis Impedance Boundary Conditions In Electromagnetics by : Daniel J. Hoppe
Download or read book Impedance Boundary Conditions In Electromagnetics written by Daniel J. Hoppe and published by CRC Press. This book was released on 2018-10-08 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic scattering from complex objects has been an area of in-depth research for many years. A variety of solution methodologies have been developed and utilised for the solution of ever increasingly complex problems. Among these methodologies, the subject of impedance boundary conditions has interested the authors for some time. In short, impedance boundary conditions allow one to replace a complex structure with an appropriate impedance relationship between the electric and magnetic fields on the surface of the object. This simplifies the solution of the problem considerably, allowing one to ignore the complexity of the internal structure beneath the surface. This book examines impedance boundary conditions in electromagnetics. The introductory chapter provides a presentation of the role of the impedance boundary conditions in solving practical electromagnetic problems and some historical background. One of the main objectives of this book is to present a unified and thorough discussion of this important subject. A method based on a spectral domain approach is presented to derive the Higher Order Impedance Boundary Conditions (HOIBC). The method includes all of the existing approximate boundary conditions, such as the Standard Impedence Boundary Condition, the Tensor Impedence Boundary Condition and the Generalised Impedance Boundary Conditions, as special cases. The special domain approach is applicable to complex coatings and surface treatments as well as simple dielectric coatings. The spectral domain approach is employed to determine the appropriate boundary conditions for planar dielectric coatings, chiral coatings and corregated conductors. The accuracy of the proposal boundary conditions is discussed. The approach is then extended to include the effects of curvature and is applied to curved dielectric and chiral coatings. Numerical data is presented to critically assess the accuracy of the results obtained using various forms of the impedence boundary conditions. A number of appendices that provide more detail on some of the topics addressed in the main body of the book and a selective list of references directly related to the topics addressed in this book are also included.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722235819 Total Pages :30 pages Book Rating :4.2/5 (358 download)
Book Synopsis Finite Difference Time Domain Implementation of Surface Impedance Boundary Conditions by : National Aeronautics and Space Administration (NASA)
Download or read book Finite Difference Time Domain Implementation of Surface Impedance Boundary Conditions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-03 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface impedance boundary conditions are employed to reduce the solution volume during the analysis of scattering from lossy dielectric objects. In the finite difference solution, they also can be utilized to avoid using small cells, made necessary by shorter wavelengths in conducting media throughout the solution volume. The standard approach is to approximate the surface impedance over a very small bandwidth by its value at the center frequency, and then use that result in the boundary condition. Here, two implementations of the surface impedance boundary condition are presented. One implementation is a constant surface impedance boundary condition and the other is a dispersive surface impedance boundary condition that is applicable over a very large frequency bandwidth and over a large range of conductivities. Frequency domain results are presented in one dimension for two conductivity values and are compared with exact results. Scattering width results from an infinite square cylinder are presented as a two dimensional demonstration. Extensions to three dimensions should be straightforward. Beggs, John H. and Luebbers, Raymond J. and Yee, Kane S. and Kunz, Karl S. Unspecified Center NAG1-1350; NAG1-1332; NAG1-1221...
Book Synopsis Surface Electromagnetics by : Fan Yang
Download or read book Surface Electromagnetics written by Fan Yang and published by Cambridge University Press. This book was released on 2019-06-20 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by the leading experts in the field, this text provides systematic coverage of the theory, physics, functional designs, and engineering applications of advanced engineered electromagnetic surfaces. All the essential topics are included, from the fundamental theorems of surface electromagnetics, to analytical models, general sheet transmission conditions (GSTC), metasurface synthesis, and quasi-periodic analysis. A plethora of examples throughout illustrate the practical applications of surface electromagnetics, including gap waveguides, modulated metasurface antennas, transmit arrays, microwave imaging, cloaking, and orbital angular momentum (OAM ) beam generation, allowing readers to develop their own surface electromagnetics-based devices and systems. Enabling a fully comprehensive understanding of surface electromagnetics, this is an invaluable text for researchers, practising engineers and students working in electromagnetics antennas, metasurfaces and optics.
Book Synopsis On the Calculation of an Average Surface Impedance for a Periodic Surface by : Rayner K. Rosich
Download or read book On the Calculation of an Average Surface Impedance for a Periodic Surface written by Rayner K. Rosich and published by . This book was released on 1970 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: A point-matching technique is employed to obtain the electromagnetic fields scattered from a surface whose height profile is periodic. The surface impedance or Leontovich boundary condition is assumed to apply in a local sense. Thus the results are restricted to situations where the lower medium is well conducting (e. g., sea water). It is indicated that the convergence of the computational process is very good in the cases tested thus far.
Book Synopsis Boundary Conditions in Electromagnetics by : Ismo V. Lindell
Download or read book Boundary Conditions in Electromagnetics written by Ismo V. Lindell and published by John Wiley & Sons. This book was released on 2019-11-26 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of boundary conditions as applied in antenna and microwave engineering, material physics, optics, and general electromagnetics research. Boundary conditions are essential for determining electromagnetic problems. Working with engineering problems, they provide analytic assistance in mathematical handling of electromagnetic structures, and offer synthetic help for designing new electromagnetic structures. Boundary Conditions in Electromagnetics describes the most-general boundary conditions restricted by linearity and locality, and analyzes basic plane-wave reflection and matching problems associated to a planar boundary in a simple-isotropic medium. This comprehensive text first introduces known special cases of particular familiar forms of boundary conditions — perfect electromagnetic conductor, impedance, and DB boundaries — and then examines various general forms of boundary conditions. Subsequent chapters discuss sesquilinear boundary conditions and practical computations on wave scattering by objects defined by various boundary conditions. The practical applications of less-common boundary conditions, such as for metamaterial and metasurface engineering, are referred to throughout the text. This book: Describes the mathematical analysis of fields associated to given boundary conditions Provides examples of how boundary conditions affect the scattering properties of a particle Contains ample in-chapter exercises and solutions, complete references, and a detailed index Includes appendices containing electromagnetic formulas, Gibbsian 3D dyadics, and four-dimensional formalism Boundary Conditions in Electromagnetics is an authoritative text for electrical engineers and physicists working in electromagnetics research, graduate or post-graduate students studying electromagnetics, and advanced readers interested in electromagnetic theory.
Book Synopsis Surface Impedance Boundary Conditions for Certain Problems of Propagation of Electromagnetic Waves in Cylindrical Domains by : Herbert H. Snyder
Download or read book Surface Impedance Boundary Conditions for Certain Problems of Propagation of Electromagnetic Waves in Cylindrical Domains written by Herbert H. Snyder and published by . This book was released on 1975 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Approximate Boundary Conditions in Electromagnetics by : Thomas B. A. Senior
Download or read book Approximate Boundary Conditions in Electromagnetics written by Thomas B. A. Senior and published by IET. This book was released on 1995 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively describes a variety of methods for the approximate simulation of material surfaces.
Book Synopsis The Method of Fundamental Solutions (MFS) and Modified Surface Impedance Boundary Conditions (IBC) Applied to 2D and 3D Eddy Current Problems by : Jingguo Wang
Download or read book The Method of Fundamental Solutions (MFS) and Modified Surface Impedance Boundary Conditions (IBC) Applied to 2D and 3D Eddy Current Problems written by Jingguo Wang and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrodynamics of Continuous Media by : L D Landau
Download or read book Electrodynamics of Continuous Media written by L D Landau and published by Elsevier. This book was released on 2013-10-22 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the theory of electromagnetic fields in matter, and the theory of the macroscopic electric and magnetic properties of matter. There is a considerable amount of new material particularly on the theory of the magnetic properties of matter and the theory of optical phenomena with new chapters on spatial dispersion and non-linear optics. The chapters on ferromagnetism and antiferromagnetism and on magnetohydrodynamics have been substantially enlarged and eight other chapters have additional sections.
Book Synopsis Implementation of Surface Impedance Boundary Condition in FDTD and Incorporating EMI from Traces Crossing the Gaps in the Ground Plane Into SPICE by : Sunitha Chandra
Download or read book Implementation of Surface Impedance Boundary Condition in FDTD and Incorporating EMI from Traces Crossing the Gaps in the Ground Plane Into SPICE written by Sunitha Chandra and published by . This book was released on 2004 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis consists of two sections. In Section 1, an efficient implementation of a surface impedance boundary condition in the Finite Difference Time Domain method is introduced. This algorithm is implemented in FDTD to include skin effect loss due to the finite conductivity of good conductors. Two test cases are simulated to show the effect of skin effect loss in good conductors. In Section 2, a full-wave FDTD model for the estimation of EMI due to the gaps in the ground plane is compared with a SPICE model. It is also shown that circuit signal quantities fairly accurately"--Abstract, leaf iii.
Book Synopsis Parabolic Equation Methods for Electromagnetic Wave Propagation by : Mireille Levy
Download or read book Parabolic Equation Methods for Electromagnetic Wave Propagation written by Mireille Levy and published by IET. This book was released on 2000 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides scientists and engineers with a tool for accurate assessment of diffraction and ducting on radio and radar systems. The author gives the mathematical background to parabolic equations modeling and describes simple parabolic equation algorithms before progressing to more advanced topics such as domain truncation, the treatment of impedance boundaries, and the implementation of very fast hybrid methods combining ray-tracing and parabolic equation techniques. The last three chapters are devoted to scattering problems, with application to propagation in urban environments and to radar-cross- section computation. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Propagation of Radiowaves by : L. W Barclay
Download or read book Propagation of Radiowaves written by L. W Barclay and published by IET. This book was released on 2003 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been fully updated to reflect the latest developments in the field of radio communications. This book introduces the basic concepts and mechanisms of radiowave propagation engineering in both the troposphere and ionosphere, and includes greater emphasis on the needs of digital technologies and new kinds of radio systems.
Book Synopsis Rough Surface Scattering and Renormalization Group Analysis with the Impedance Boundary Condition by : Gregory John Orris
Download or read book Rough Surface Scattering and Renormalization Group Analysis with the Impedance Boundary Condition written by Gregory John Orris and published by . This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis STUDIES IN RADAR CROSS SECTIONS XL-SURFACE ROUGHNESS AND IMPEDANCE BOUNDARY CONDITIONS by : R. E. HIATT, T. B. A. SENIOR, V. H. WESTON
Download or read book STUDIES IN RADAR CROSS SECTIONS XL-SURFACE ROUGHNESS AND IMPEDANCE BOUNDARY CONDITIONS written by R. E. HIATT, T. B. A. SENIOR, V. H. WESTON and published by . This book was released on 1960 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Waves and Discontinuities by : Peter Malischewsky
Download or read book Surface Waves and Discontinuities written by Peter Malischewsky and published by Walter de Gruyter GmbH & Co KG. This book was released on 1987-12-31 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "Surface Waves and Discontinuities".
