Electromagnetic Fields In Cavities

Author : David A. Hill
Publisher : John Wiley & Sons
Page : 296 pages
File Size : 53,6 Mb
Release : 2009-10-27
Category : Technology & Engineering
ISBN : 0470495049

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Electromagnetic Fields in Cavities by David A. Hill Pdf

A thorough and rigorous analysis of electromagnetic fields in cavities This book offers a comprehensive analysis of electromagnetic fields in cavities of general shapes and properties. Part One covers classical deterministic methods to conclude resonant frequencies, modal fields, and cavity losses; quality factor; mode bandwidth; and the excitation of cavity fields from arbitrary current distributions for metal-wall cavities of simple shape. Part Two covers modern statistical methods to analyze electrically large cavities of complex shapes and properties. Electromagnetic Fields in Cavities combines rigorous solutions to Maxwell's equations with conservation of energy to solve for the statistics of many quantities of interest: penetration into cavities (and shielding effectiveness), field strengths far from and close to cavity walls, and power received by antennas within cavities. It includes all modes and shows you how to utilize fairly simple statistical formulae to apply to your particular problem, whether it's interference calculations, electromagnetic compatibility testing in reverberation chambers, measurement of shielding materials using multiple cavities, or efficiency of test antennas. Electromagnetic Fields in Cavities is a valuable resource for researchers, engineers, professors, and graduate students in electrical engineering.

Author : Georg Goubau
Publisher : Unknown
Page : 680 pages
File Size : 49,9 Mb
Release : 1961
Category : Electromagnetism
ISBN : UOM:39015001334823

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Electromagnetic Waveguides and Cavities by Georg Goubau Pdf

Author : Chalmers M. Butler
Publisher : Unknown
Page : 250 pages
File Size : 51,7 Mb
Release : 1962
Category : Electromagnetism
ISBN : WISC:89011053717

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Time-harmonic and Transient Electromagnetic Fields in Spherical Cavities with Walls of Arbitrary Electrical Properties by Chalmers M. Butler Pdf

Author : MI LEE
Publisher : Unknown
Page : 398 pages
File Size : 45,6 Mb
Release : 1950
Category : Electronic
ISBN : UOM:39015035139511

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THE ELECTROMAGNETIC FIELDS GENERATED IN RECTANGULAR CAVITIES AND WAVEGUIDES BY VARIOUS TYPES OF SOURCES. by MI LEE Pdf

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 43,5 Mb
Release : 1964
Category : Electronic
ISBN : OCLC:958277443

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The Propagation of Transient Electromagnetic Fields Into a Cavity Formed by Two Imperfectly Conducting Sheets by Anonim Pdf

Author : Frank Joseph Kriegler
Publisher : Unknown
Page : 244 pages
File Size : 42,7 Mb
Release : 1963
Category : Particle accelerators
ISBN : WISC:89011265147

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The Electromagnetic Fields Excited in Accelerator Cavities by a Beam of Charged Particles by Frank Joseph Kriegler Pdf

Author : Jean G. Van Bladel
Publisher : John Wiley & Sons
Page : 1171 pages
File Size : 46,5 Mb
Release : 2007-05-23
Category : Science
ISBN : 9780470124574

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Electromagnetic Fields by Jean G. Van Bladel Pdf

Professor Jean Van Bladel, an eminent researcher and educator in fundamental electromagnetic theory and its application in electrical engineering, has updated and expanded his definitive text and reference on electromagnetic fields to twice its original content. This new edition incorporates the latest methods, theory, formulations, and applications that relate to today's technologies. With an emphasis on basic principles and a focus on electromagnetic formulation and analysis, Electromagnetic Fields, Second Edition includes detailed discussions of electrostatic fields, potential theory, propagation in waveguides and unbounded space, scattering by obstacles, penetration through apertures, and field behavior at high and low frequencies.

Author : V. V. Sarwate
Publisher : bohem press
Page : 488 pages
File Size : 45,5 Mb
Release : 1993
Category : Science
ISBN : 8122404685

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Electromagnetic Fields and Waves by V. V. Sarwate Pdf

Only 30% Of This Book Deals With Theory, The Rest Of It Is Application Of This Theory To Various Situations Of Different Levels Of Complexity. In Each Case The Reason For The Choice Of The Method Is Explained, And Various Doubts Which Assail The Minds Of Most Students Have Been Tackled. The Solved Examples In The Book Do Not Deal With Mere Substitution Of Numerical Values Of Formulae. They Are Aimed At Establishing A Strong Foundation Of Knowledge.All The Required Mathematics Has Been Explained In The First Chapter To Avoid The Need To Refer Frequently To Other Books In Mathematics. At The End Of Each Chapter A Summary Of The Achievements Is Given Along With Comments On The Nature Of Difficulties Encountered, And The Reader Is Thereafter Prepared For The Objectives To Be Attained In The Following Chapter. The Emphasis Throughout The Book Is On A Physical Understanding Of Fields And Waves And Their Characteristics, Rather Than Getting Lost In A Maze Of Mathematical Manipulations.This Is An Introductory Textbook Intended To Give The Reader A Solid Grounding In The Subject And To Prepare Him To Deal With More Advanced Texts. The Material Has Been Tested In One-Semester Courses Given By The Author In Various Colleges In Pune.

Author : N P Sobenin,B V Zverev
Publisher : CRC Press
Page : 306 pages
File Size : 49,5 Mb
Release : 1999-07-23
Category : Technology & Engineering
ISBN : 9069940035

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Electrodynamic Characteristics of Accelerating Cavities by N P Sobenin,B V Zverev Pdf

Now available for the first time in English translation, this important book contains extensive material relating to the electrodynamic characteristics of linear accelerators, and gives a good overview of the fundamentals of accelerating cavity design. The authors describe the experimental methods and measurement techniques essential in this area of research, and provide comprehensive data about the electrodynamic characteristics of resonant structures, which are widely used in charged particle accelerators and microwave devices. Single cavities and coupling chains, excited in electrical and magnetic modes, are described numerically and analyzed in detail. The book also provides a valuable description of the perturbation method, which is illustrated using a unique collection of data.

Author : Akira Ishimaru
Publisher : John Wiley & Sons
Page : 968 pages
File Size : 55,6 Mb
Release : 2017-08-09
Category : Science
ISBN : 9781119079538

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Electromagnetic Wave Propagation, Radiation, and Scattering by Akira Ishimaru Pdf

One of the most methodical treatments of electromagnetic wave propagation, radiation, and scattering—including new applications and ideas Presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. It provides ample end-of-chapter problems and offers a 90-page solution manual to help readers check and comprehend their work. The second part of the book explores up-to-date applications of electromagnetic waves—including radiometry, geophysical remote sensing and imaging, and biomedical and signal processing applications. Written by a world renowned authority in the field of electromagnetic research, this new edition of Electromagnetic Wave Propagation, Radiation, and Scattering: From Fundamentals to Applications presents detailed applications with useful appendices, including mathematical formulas, Airy function, Abel’s equation, Hilbert transform, and Riemann surfaces. The book also features newly revised material that focuses on the following topics: Statistical wave theories—which have been extensively applied to topics such as geophysical remote sensing, bio-electromagnetics, bio-optics, and bio-ultrasound imaging Integration of several distinct yet related disciplines, such as statistical wave theories, communications, signal processing, and time reversal imaging New phenomena of multiple scattering, such as coherent scattering and memory effects Multiphysics applications that combine theories for different physical phenomena, such as seismic coda waves, stochastic wave theory, heat diffusion, and temperature rise in biological and other media Metamaterials and solitons in optical fibers, nonlinear phenomena, and porous media Primarily a textbook for graduate courses in electrical engineering, Electromagnetic Wave Propagation, Radiation, and Scattering is also ideal for graduate students in bioengineering, geophysics, ocean engineering, and geophysical remote sensing. The book is also a useful reference for engineers and scientists working in fields such as geophysical remote sensing, bio–medical engineering in optics and ultrasound, and new materials and integration with signal processing.

Author : Shiv Narayan,K. M. Divya,V. Krushna Kanth
Publisher : Springer
Page : 71 pages
File Size : 54,7 Mb
Release : 2016-12-21
Category : Technology & Engineering
ISBN : 9789811034152

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FDTD Modeling of EM Field inside Microwave Cavities by Shiv Narayan,K. M. Divya,V. Krushna Kanth Pdf

This book deals with the EM analysis of closed microwave cavities based on a three-dimensional FDTD method. The EM analysis is carried out for (i) rectangular microwave ovens and (ii) hybrid-cylindrical microwave autoclaves at 2.45 GHz. The field distribution is first estimated inside domestic rectangular ovens in xy-, yz-, and zx-plane. Further, the RF leakage from the oven door is determined to study the effect of leakage radiation on wireless communication at 2.45 GHz. Furthermore, the EM analysis of the autoclave is carried out based on 3D FDTD using staircase approximation. In order to show the capability of autoclaves (excited with five source) for curing the aerospace components and materials, the field distribution inside autoclave cavity is studied in presence of aerospace samples. The FDTD based modelling of oven and autoclave are explained with the appropriate expressions and illustrations.

Author : Wen Geyi
Publisher : John Wiley & Sons
Page : 452 pages
File Size : 40,8 Mb
Release : 2023-03-24
Category : Science
ISBN : 9781394170876

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Foundations of Antenna Radiation Theory by Wen Geyi Pdf

Foundations of Antenna Radiation Theory Understand the theory and function of wireless antennas with this comprehensive guide As wireless technology continues to develop, understanding of antenna properties and performance will only become more critical. Since antennas can be understood as junctions of waveguides, eigenmode analysis—the foundation of waveguide theory, concerned with the unexcited states of systems and their natural resonant characteristics—promises to be a crucial frontier in the study of antenna theory. Foundations of Antenna Radiation Theory incorporates the modal analysis, generic antenna properties and design methods discovered or developed in the last few decades, not being reflected in most antenna books, into a comprehensive introduction to the theory of antennas. This book puts readers into conversation with the latest research and situates students and researchers at the cutting edge of an important field of wireless technology. The book also includes: Detailed discussions of the solution methods for Maxwell equations and wave equations to provide a theoretical foundation for electromagnetic analysis of antennas Recent developments for antenna radiation in closed and open space, modal analysis and field expansions, dyadic Green’s functions, time-domain theory, state-of-the-art antenna array synthesis methods, wireless power transmission systems, and more Innovative material derived from the author’s own research Foundations of Antenna Radiation Theory is ideal for graduate or advanced undergraduate students studying antenna theory, as well as for reference by researchers, engineers, and industry professionals in the areas of wireless technology.

Author : Richard Arthur Waldron
Publisher : Unknown
Page : 144 pages
File Size : 42,9 Mb
Release : 1967
Category : Cavity resonators
ISBN : UCSD:31822011861770

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The Theory of Waveguides and Cavities by Richard Arthur Waldron Pdf

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 28 pages
File Size : 41,5 Mb
Release : 2018-07-02
Category : Electronic
ISBN : 1722200022

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Electromagnetic Scattering from Arbitrarily Shaped Aperture Backed by Rectangular Cavity Recessed in Infinite Ground Plane by National Aeronautics and Space Administration (NASA) Pdf

The electromagnetic scattering from an arbitrarily shaped aperture backed by a rectangular cavity recessed in an infinite ground plane is analyzed by the integral equation approach. In this approach, the problem is split into two parts: exterior and interior. The electromagnetic fields in the exterior part are obtained from an equivalent magnetic surface current density assumed to be flowing over the aperture and backed by an infinite ground plane. The electromagnetic fields in the interior part are obtained in terms of rectangular cavity modal expansion functions. The modal amplitudes of cavity modes are determined by enforcing the continuity of the electric field across the aperture. The integral equation with the aperture magnetic current density as an unknown is obtained by enforcing the continuity of magnetic fields across the aperture. The integral equation is then solved for the magnetic current density by the method of moments. The electromagnetic scattering properties of an aperture backed by a rectangular cavity are determined from the magnetic current density. Numerical results on the backscatter radar cross-section (RCS) patterns of rectangular apertures backed by rectangular cavities are compared with earlier published results. Also numerical results on the backscatter RCS patterns of a circular aperture backed by a rectangular cavity are presented. Cockrell, C. R. and Beck, Fred B. Langley Research Center RTOP 505-64-52-04...

Author : Gareth R. Eaton,Sandra S. Eaton,David P. Barr,Ralph T. Weber
Publisher : Springer Science & Business Media
Page : 192 pages
File Size : 46,8 Mb
Release : 2010-04-10
Category : Science
ISBN : 9783211929483

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Quantitative EPR by Gareth R. Eaton,Sandra S. Eaton,David P. Barr,Ralph T. Weber Pdf

There is a growing need in both industrial and academic research to obtain accurate quantitative results from continuous wave (CW) electron paramagnetic resonance (EPR) experiments. This book describes various sample-related, instrument-related and software-related aspects of obtaining quantitative results from EPR expe- ments. Some speci?c items to be discussed include: selection of a reference standard, resonator considerations (Q, B ,B ), power saturation, sample position- 1 m ing, and ?nally, the blending of all the factors together to provide a calculation model for obtaining an accurate spin concentration of a sample. This book might, at ?rst glance, appear to be a step back from some of the more advanced pulsed methods discussed in recent EPR texts, but actually quantitative “routine CW EPR” is a challenging technique, and requires a thorough understa- ing of the spectrometer and the spin system. Quantitation of CW EPR can be subdivided into two main categories: (1) intensity and (2) magnetic ?eld/mic- wave frequency measurement. Intensity is important for spin counting. Both re- tive intensity quantitation of EPR samples and their absolute spin concentration of samples are often of interest. This information is important for kinetics, mechanism elucidation, and commercial applications where EPR serves as a detection system for free radicals produced in an industrial process. It is also important for the study of magnetic properties. Magnetic ?eld/microwave frequency is important for g and nuclear hyper?ne coupling measurements that re?ect the electronic structure of the radicals or metal ions.