Step Discontinuities In Waveguides
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Step Discontinuities In Waveguides Classic Reprint
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Author : W. Elwyn Williams
language : en
Publisher:
Release Date : 2015-08-05
Step Discontinuities In Waveguides Classic Reprint written by W. Elwyn Williams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-05 with Mathematics categories.
Excerpt from Step Discontinuities in Waveguides Problems involving discontinuities in waveguides are of great practical importance and a considerable amount of attention has been devoted to them in recent 3 rears, The two types of discontinuities that have been most extensively treated for a rectangular guide are the bifurcation of the guide by a semi infinite plane and a step discontinuity in the guide cross-section. The problem of the bifurcation may be solved in terms of known functions by applying the well-known Wiener-Hopf technique for solving integral equations. The methods for solving the problem of a step discontinuity which have appeared in the literature are, however, in no way based on the Wiener-Hopf approach. Two distinct methods have been employed; the first consists of expanding the field components on either side of the discontinuity in terms of the appropriate eigenfunctions for the region considered, and then matching the components across the plane of discontinuity. The second method used is the equivalent static approach as described in the Wave Guide Handbook. Since there is obviously a physical relationship between these two problems it is desirable to solve them both by the same method in order that the solution should display clearly the relationship between them, and this is the object of the present work. We therefore consider the application of the Wiener-Hopf technique to solve the problem of a step discontinuity in a parallel plate region (or, equivalently, the coupling of two parallel plate waveguides of different height). The problem is formulated as an acoustic one, but it could have been equally-well stated in electromagnetic terms by considering the case in which the only non-vanishing component of the magnetic field is parallel to the edges of the step. It is assumed that the fundamental mode is incident from the larger region on the step and, initially, that the dimensions of both regions concerned are taken to be such that only the fundamental mode may propagate without attenuation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Step Discontinuities In Waveguides
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Author : W Elwyn Williams
language : en
Publisher: Legare Street Press
Release Date : 2023-07-18
Step Discontinuities In Waveguides written by W Elwyn Williams and has been published by Legare Street Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-18 with categories.
This classic text from 1970 provides a detailed analysis of the behavior of electromagnetic waves at step discontinuities in waveguides, with applications to microwave engineering, radar and communications. The author introduces new techniques for solving Maxwell's equations in waveguide geometries, and provides a wealth of examples and applications to illustrate the theory. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Ridge Waveguides And Passive Microwave Components
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Author : J. Helszajn
language : en
Publisher: IET
Release Date : 2000-06-30
Ridge Waveguides And Passive Microwave Components written by J. Helszajn and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-06-30 with Technology & Engineering categories.
This book collects much of Helszajn's work (formerly, Heriot-Watt University) and includes closed-form and finite element calculations of the propagation constant, attenuation and mode spectrum for the ridge waveguide, and power-current and power-voltage definitions of impedance. Circular polarization is also treated. Propagation properties where the waveguide has a dielectric filler are calculated. The treatment is then extended to more complex designs, including quadruple ridge waveguides with and without a gyromagnetic filler. The text includes descriptions of many of the passive devices which can be realized using these waveguides, including isolators, phase shifters, and circulators. c. Book News Inc.
Moment Method Solution For Multiple Step Discontinuities In Waveguides
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Author : Abdul-Kadir M. N. Hamid
language : en
Publisher:
Release Date : 1988
Moment Method Solution For Multiple Step Discontinuities In Waveguides written by Abdul-Kadir M. N. Hamid and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Surface Waves And Discontinuities
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Author : Peter Malischewsky
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 1987-12-31
Surface Waves And Discontinuities written by Peter Malischewsky and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-12-31 with Science categories.
No detailed description available for "Surface Waves and Discontinuities".
Modern Rf And Microwave Filter Design
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Author : Protap Pramanick
language : en
Publisher: Artech House
Release Date : 2016-08-31
Modern Rf And Microwave Filter Design written by Protap Pramanick and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-31 with Technology & Engineering categories.
This authoritative resource presents current practices for the design of RF and microwave filters. This one-stop reference provides readers with essential and practical information in order to design their own filter design software package, ultimately saving time and money. Essential building blocks for each type of filter are presented including network theory, transmission lines, and coupling mechanisms. This book presents a detailed discussion of the Low Pass Filter prototype, which is then extended to other configurations such as high pass, band pass, band stop, diplexers, and multiplexers. Microwave Network Theory and Transmission Line Coupling Mechanisms are presented along with a comprehensive discussion of the characteristics of commonly used transmission lines such as waveguides, Striplines, and Microstrip lines. Numerous design examples are presented to demonstrate an inclusive design methodology.
Coplanar Waveguide Circuits Components And Systems
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Author : Rainee N. Simons
language : en
Publisher: John Wiley & Sons
Release Date : 2004-04-07
Coplanar Waveguide Circuits Components And Systems written by Rainee N. Simons and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-04-07 with Technology & Engineering categories.
Up-to-date coverage of the analysis and applications of coplanar waveguides to microwave circuits and antennas The unique feature of coplanar waveguides, as opposed to more conventional waveguides, is their uniplanar construction, in which all of the conductors are aligned on the same side of the substrate. This feature simplifies manufacturing and allows faster and less expensive characterization using on-wafer techniques. Coplanar Waveguide Circuits, Components, and Systems is an engineer's complete resource, collecting all of the available data on the subject. Rainee Simons thoroughly discusses propagation parameters for conventional coplanar waveguides and includes valuable details such as the derivation of the fundamental equations, physical explanations, and numerical examples. Coverage also includes: Discontinuities and circuit elements Transitions to other transmission media Directional couplers, hybrids, and magic T Microelectromechanical systems based switches and phase shifters Tunable devices using ferroelectric materials Photonic bandgap structures Printed circuit antennas
The Diffraction Of Electromagnetic Waves By Dielectric Steps In Waveguides
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Author : Erlind G. Royer
language : en
Publisher:
Release Date : 1970
The Diffraction Of Electromagnetic Waves By Dielectric Steps In Waveguides written by Erlind G. Royer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Dielectric wave guides categories.
The problem of determining the scattered electromagnetic fields when a dielectric step discontinuity is placed in a waveguide is considered here. The case of a dielectric step which is semi-infinite in extent is presented first. Althouth an exact method of solution is not known at this time, it is shown that the recently introduced modified residue calculus technique can be successfully extended to obtain a very accurate approximate solution of the semi-infinite dielectric step. A unique advantage of this method of solution is that the degree of accuracy obtained is independent of the relative permittivity of the dielectric material and of the frequency. Thus, very high permittivities of frequencies can be considered without an attendant increase in computational complexity. Numerical data are presented which confirm the accuracy of the solutions obtained. The accurate determination of the total field is easily accomplished using the method of this study and is demonstrated. A further extension of the modified residue calculus method yields the approximate solution for the case of a finite dielectric step. This extension also enjoys the advantages mentioned above. The phase shifting abilities of the finite step are demonstrated by calculations which show the effects of varying the step height and the step length. (Author).
Electromagnetic Waveguides
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Author : S. F. Mahmoud
language : en
Publisher: IET
Release Date : 1991
Electromagnetic Waveguides written by S. F. Mahmoud and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Science categories.
A textbook for an introductory graduate course in electromagnetic waveguides, covering such types as low attenuation, dielectric, and the natural wave guides in the ionosphere and in mine tunnels. Annotation copyrighted by Book News, Inc., Portland, OR
Applied Frequency Domain Electromagnetics
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Author : Robert Paknys
language : en
Publisher: John Wiley & Sons
Release Date : 2016-09-02
Applied Frequency Domain Electromagnetics written by Robert Paknys and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-02 with Science categories.
Understanding electromagnetic wave theory is pivotal in the design of antennas, microwave circuits, radars, and imaging systems. Researchers behind technology advances in these and other areas need to understand both the classical theory of electromagnetics as well as modern and emerging techniques of solving Maxwell's equations. To this end, the book provides a graduate-level treatment of selected analytical and computational methods. The analytical methods include the separation of variables, perturbation theory, Green's functions, geometrical optics, the geometrical theory of diffraction, physical optics, and the physical theory of diffraction. The numerical techniques include mode matching, the method of moments, and the finite element method. The analytical methods provide physical insights that are valuable in the design process and the invention of new devices. The numerical methods are more capable of treating general and complex structures. Together, they form a basis for modern electromagnetic design. The level of presentation allows the reader to immediately begin applying the methods to some problems of moderate complexity. It also provides explanations of the underlying theories so that their capabilities and limitations can be understood.