Download or read book Reception and Transmission of Transient Electromagnetic Fields written by Hans J. Schmitt and published by . This book was released on 1963 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The receiving and transmitting properties of small linear antennas, conical antennas, and loops for transient electromagnetic fields were investigated experimentally. Short electrical dipoles loaded by a capacitance represented by a cathode follower can be used successfully for the measurement of transient fields with rise times of less than 1 nanosecond, if the first antenna resonance is suppressed by a series resistor at the base of the antenna. The currents induced on nonresonant structures by transient electromagnetic fields are investigated and their application to a direct measurement of the time sequence of the electromagnetic field is discussed. Signals with a simple and known time dependence such as a unidirectional pulse can be radiated into space if the reflection of current waves at discontinuities of the antenna structure is avoided. In a manner similar to that useful for the absorption of continuous waves in media with a stratified conductivity, it is shown that reflections at discontinuities can be avoided by dipoles with tapered resistive loading. (Author).
Download or read book Reception and Transmission of Transient Electromagnetic Fields written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Propagation of Transient Electromagnetic Fields Into a Cavity Formed by Two Imperfectly Conducting Sheets written by Charles W. Harrison and published by . This book was released on 1964 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Propagation of Electromagnetic Waves in Multiconductor Transmission Lines written by P. I. Kuznetsov and published by Elsevier. This book was released on 2013-10-22 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Propagation of Electromagnetic Waves in Multiconductor Transmission Lines presents the study of the problems relating to the propagation of electromagnetic waves along multi-conductor transmission line. This book examines the theoretical investigations into the propagation of electromagnetic waves in transmission line systems involving two or more conductors. Organized into 12 chapters, this book begins with an overview of the rigorous method based on Maxwell's equations for solving the basic problem in the theory of the steady-state propagation of electromagnetic waves in a multi-conductor system. This text then examines the significant practical problem of determining the electromagnetic fields of symmetrical and non-symmetrical two-wire lines in free space. Other chapters consider the methods of calculating the parameters of non-uniform lines. This book discusses as well the problem of transient electromagnetic processes in a multi-conductor system. The final chapter deals with the asymptotic representation of cylindrical functions of two-imaginary variables. Electrical engineers will find this book useful.
Download or read book Electromagnetic Impulse Transmission and Reception Using a Wide Band Antenna written by Leland K. Neher and published by . This book was released on 1959 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Field Interaction with Transmission Lines written by Farhad Rachidi and published by WIT Press. This book was released on 2008 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evaluation of electromagnetic field coupling to transmission lines is an important problem in electromagnetic compatibility. Traditionally, use is made of the TL approximation which applies to uniform transmission lines with electrically small cross-sectional dimensions, where the dominant mode of propagation is TEM. Antenna-mode currents and higher-order modes appearing at higher frequencies are neglected in TL theory. The use of the TL approximation has permitted to solve a large range of problems (e.g. lightning and EMP interaction with power lines). However, the continual increase in operating frequency of products and higher frequency sources of disturbances (such as UWB systems) makes that the TL basic assumptions are no longer acceptable for a certain number of applications. In the last decade or so, the generalization of classical TL theory to take into account high frequency effects has emerged as an important topic of study in electromagnetic compatibility. This effort resulted in the elaboration of the so-called 'generlized' or 'full-wave' TL theory, which incorporates high frequency radiation effects, while keeping the relative simplicity of TL equations. This book is organized in two main parts. Part I presents consolidated knowledge of classical transmission line theory and different field-to-transmission line coupling models. Part II presents different approaches developed to generalize TL Theory.
Download or read book Transient Electromagnetic Fields written by L.B. Felsen and published by Springer Science & Business Media. This book was released on 2006-01-21 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transient Electromagnetic Field Propagation Through Infinite Sheets Into Spherical Shells and Into Hollow Cylinders written by Charles W. Harrison and published by . This book was released on 1964 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transient Electromagnetic Fields written by L.B. Felsen and published by Springer. This book was released on 2014-03-12 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Analysis Using Transmission Line Variables 2nd Edition written by Maurice Weiner and published by World Scientific. This book was released on 2010-08-31 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book employs a relatively new method for solving electromagnetic problems, one which makes use of a transmission line matrix (TLM). The propagation space is imagined to be filled with this matrix. The propagating fields and physical properties are then mapped onto the matrix. Mathematically, the procedures are identical with the traditional numerical methods; however, the interpretation and physical appeal of the transmission line matrix are far superior. Any change in the matrix has an immediate physical significance. What is also very important is that the matrix becomes a launching pad for many improvements in the analysis, using more modern notions of electromagnetic waves. Eventually, the purely mathematical techniques will probably give way to the transmission line matrix method.Major revisions occur in chapters IV and VII in this second edition. The revised chapters now present an up-to-date and concise treatment on plane wave correlations and decorrelations, and provide a revised formulation of simulation to solve transient electromagnetic problems. It also takes into account semiconductors with arbitrary dielectric constant, using much smaller cell size, and extending the range of applicability and improving accuracy.
Download or read book SCR written by and published by . This book was released on 1963 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Analysis Using Transmission Line Variables written by Maurice Weiner and published by World Scientific. This book was released on 2010 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: Describes transmission line matrix techniques for solving electromagnetic problems. The approach visualizes the propagation medium as divided into identical cells with the electromagnetic energy confined to transmission lines which separate the cells. The author, who works for United Silicon Carbide, develops the electromagnetic scattering equations for one, two and three dimensions, corrects the transmission line matrix for any wave properties, and incorporates boundary conditions and dispersion into the method. Finally, he outlines a computer program for finding the transient solution of a 2D semiconductor switch whose conductivity is induced by a light source.
Download or read book Transmission and Propagation of Electromagnetic Waves written by K. F. Sander and published by CUP Archive. This book was released on 1986-10-23 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition of an established textbook presents aspects of electromagnetic theory of direct relevance to the transmission of information by electromagnetic waves. In revising the first edition the authors have taken the opportunity to extend the coverage significantly by adding new material on optical transmission. Throughout, the theory is applied to the working of practical systems, and the constraints imposed by fundamental properties are emphasised.
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Analysis Using Transmission Line Variables Third Edition written by Maurice Weiner and published by World Scientific. This book was released on 2017-12-27 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: This latest edition continues the evolution toward the ultimate realization of a new technique for solving electromagnetic propagation problems. The technique combines the classical and intuitive use of a transmission line matrix (TLM) while striving for consistency with the guideposts demanded by quantum mechanics and the essential structure of electromagnetic theory. The matrix then becomes a useful vehicle for examining both coherent and noncoherent electromagnetic waves. The goal is a mathematical tool capable of solving problems related to the propagation of transient, high-speed, complex waveforms containing both symmetric and plane wave components. For such waveforms, standard classical electromagnetic theory is unable to provide a truly accurate solution since it does not properly account for the correlations among the various TLM cells. The correlations among neighboring TLM cells allow the cell waves to sense one another and to collectively participate as a coherent wave.For arbitrary signals, e.g., complex, high speed, highly non-uniform signals, the correlation model must be placed on a firmer footing to insure the proper correlation strength based on the close adherence to quantum mechanical principles. The purpose of the Third Edition is to thereby improve the correlation model, and incorporate the model into the simulations. The simulation results thus obtained show great promise in describing the full range of electromagnetic phenomena. Wave divergence and diffraction simulations, employing both composite and shorter range correlation models, have been incorporated. The models employ correlation coefficients which may be linked with quantum mechanical parameters, thus providing a deeper understanding of coherent wave fronts.
Download or read book OAR Cumulative Index of Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1963 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Time Reversal written by Farhad Rachidi and published by John Wiley & Sons. This book was released on 2017-01-04 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to familiarize the reader with the concept of electromagnetic time reversal, and introduce up-to-date applications of the concept found in the areas of electromagnetic compatibility and power systems. It is original in its approach to describing propagation and transient issues in power networks and power line communication, and is the result of the three main editors' pioneering research in the area.
