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- Field Theory of Guided Waves by Robert E. Collin (1960, Hardcover)
- [PDF] Foundations for Microwave Engineering By Robert E. Collin Book Free Download
- Some Features of Waveguide/Horn Design
- Field Theory of Guided Waves - Wiley-IEEE Press Books

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Field theory of guided waves by Robert E. Collin; 4 editions; First published in ; Subjects: Electromagnetic theory, Field theory (Physics). His classic text, Field Theory of Guided Waves, is also a volume in the series. Professor Collin has had a long and distinguished academic career at Case. Field Theory of Guided Waves, 2nd Edition Robert E. Collin the most comprehensive account of electromagnetic theory and analytical methods for solving.

However, I felt that some revision of the original book would greatly enhance its value. The original edition was published in , and since that time the field of applied electromagnetics has advanced on several fronts, and a variety of new problems have come into prominence. There was a clear need to include some of these advances in a revised edition. We agreed that a modest revision would be undertaken. As the revision proceeded it became clear that space limitations would not allow in-depth treatment of many of the newer developments. The constraints I placed on myself in carrying out the revision were to use as much of the original material as possible without rewriting and to limit the amount of new material to what I felt was most urgently needed in support of current research activities. The unfortunate consequence of such a decision is that one is committed to using the old notation and retaining the original development of many topics.

Preview Unable to display preview. Download preview PDF. References [1] R. Eisenhart and P. Microwave Theory Tech.

MTT, pp. Google Scholar [2] R. Google Scholar [3] F. Chen and W. Infrared and Millimeter Waves, vol. A considerable amount of new material on microstrip and coupled microstrip lines has been added.

The spectral domain Galerkin method for microstrip lines is developed in detail.

In addition, the potential theory for planar transmission lines is developed. Conformal mapping techniques are described that enable the dominant part of the Green's functions to be diagonalized over the microstrip, both for the single line and the coupled line.

This technique is an alternative to Lewin's singular integral equation techniques and leads to efficient and robust formulations for line parameter evaluation on a computer. The theory of uniform metallic waveguides is developed in the fifth chapter. In addition to the material in the original edition, new material on eigenfunction expansions and mode representations of dyadic Green's functions for waveguides has been added.

Specific results for rectangular and circular waveguides are given. I have also taken this opportunity to include the theory of electromagnetic cavities and dyadic Green's functions for cavities. Perturbation theory for a cavity containing a small dielectric or magnetic obstacle is also developed and provides the basis for a well-known technique to measure the complex permittivity of materials.

In the original edition, Chapter 6 covered the topics of dielectric and ferrite slabs in rectangular waveguides and variational methods for calculating the propagation constants.

This material has been retained in the revised edition as well. The subjects of dielectric waveguides and resonators have been of great interest in recent years and should have received an in-depth treatment. However, we chose to limit the discussion on these topics in the interest of space.

Thus we only provide an introductory treatment of variational methods that form the basis for the finite element method, a discussion of the boundary element method, and an introduction to dielectric resonators.

Chapter 7 treats a number of topics related to the excitation of waveguides by probes and loops, aperture coupling of waveguides, and aperture coupling of waveguides and cavities. A more complete theory of the basic waveguide probe problem is given along with a more careful consideration of the limitations of the variational formulation for the probe impedance.

The original small-aperture theory formulated by Bethe had one major shortcoming, which was that it did not give a solution for the radiation conductance of the aperture. As a consequence, the results of the theory could be interpreted in terms of an equivalent circuit only by invoking other considerations. For coupling between dissimilar regions, it was often difficult to construct a meaningful physical equivalent circuit for the coupling problem.

We have overcome this deficiency by adding a radiation reaction term to the aperture polarizing field. The resultant PREFACE theory is now fully internally self-consistent and leads directly to physically meaningful equivalent circuits for the coupling.

It also enables one to treat the problems of aperture coupling between waveguides and cavities, again yielding physical equivalent circuits. This improved small-aperture theory is presented along with a number of examples that illustrate how it is applied in practice. After the revision of Chapter 7, it became evident that new material could be added to the remaining chapters only at the expense of some of the old material. However, I found that relatively little original material could be eliminated since much of it was still essential as background material for any new topics that might be introduced.

Consequently I chose to keep Chapters 8 through 12 essentially unchanged, with some minor exceptions. Chapter 8 contains classical material on variational methods for waveguide discontinuities and serves to illustrate a number of special techniques useful for rectangular waveguide discontinuities. These methods are readily extended to other waveguides.

It was my original intention to expand the number of examples, but because of space limitations, only a short treatment of the inductive post and a brief, general discussion of scattering from obstacles in a waveguide were added.

There is an abundance of papers on waveguide discontinuities, as well as several books on the subject, so the reader will have no difficulty in finding examples to study and review. Chapter 9 on periodic structures has been left unchanged.

It covers the fundamentals in sufficient depth that the extension of the theory and its application to specific structures should follow quite readily.

An additional example has been added to Chapter 10 on integral transform and function- theoretic techniques. This example is that of a bifurcated parallel-plate waveguide with a dielectric slab. This particular example provides useful physical insight into the basic properties of a wide microstrip line and follows quite closely the theory developed by El-Sherbiny.

In particular, it illustrates the crucial importance of edge conditions in order to obtain a unique solution.

It also illustrates that the LSE and LSM modes in a microstrip line are coupled through the edge conditions in accordance with the theory given by Omar and Shiinemann. Chapter lIon surface waveguides and Chapter 12 on artificial dielectrics are unchanged from the original edition.

This technique is an alternative to Lewin's singular integral equation techniques and leads to efficient and robust formulations for line parameter evaluation on a computer. The theory of uniform metallic waveguides is developed in the fifth chapter. In addition to the material in the original edition, new material on eigenfunction expansions and mode representations of dyadic Green's functions for waveguides has been added.

Specific results for rectangular and circular waveguides are given. I have also taken this opportunity to include the theory of electromagnetic cavities and dyadic Green's functions for cavities. Perturbation theory for a cavity containing a small dielectric or magnetic obstacle is also developed and provides the basis for a well-known technique to measure the complex permittivity of materials. In the original edition, Chapter 6 covered the topics of dielectric and ferrite slabs in rectangular waveguides and variational methods for calculating the propagation constants.

This material has been retained in the revised edition as well. The subjects of dielectric waveguides and resonators have been of great interest in recent years and should have received an in-depth treatment.

However, we chose to limit the discussion on these topics in the interest of space. Thus we only provide an introductory treatment of variational methods that form the basis for the finite element method, a discussion of the boundary element method, and an introduction to dielectric resonators. Chapter 7 treats a number of topics related to the excitation of waveguides by probes and loops, aperture coupling of waveguides, and aperture coupling of waveguides and cavities. A more complete theory of the basic waveguide probe problem is given along with a more careful consideration of the limitations of the variational formulation for the probe impedance.

The original small-aperture theory formulated by Bethe had one major shortcoming, which was that it did not give a solution for the radiation conductance of the aperture. As a consequence, the results of the theory could be interpreted in terms of an equivalent circuit only by invoking other considerations.

For coupling between dissimilar regions, it was often difficult to construct a meaningful physical equivalent circuit for the coupling problem. We have overcome this deficiency by adding a radiation reaction term to the aperture polarizing field. The resultant PREFACE theory is now fully internally self-consistent and leads directly to physically meaningful equivalent circuits for the coupling.

It also enables one to treat the problems of aperture coupling between waveguides and cavities, again yielding physical equivalent circuits. This improved small-aperture theory is presented along with a number of examples that illustrate how it is applied in practice. After the revision of Chapter 7, it became evident that new material could be added to the remaining chapters only at the expense of some of the old material.

However, I found that relatively little original material could be eliminated since much of it was still essential as background material for any new topics that might be introduced. Consequently I chose to keep Chapters 8 through 12 essentially unchanged, with some minor exceptions. Chapter 8 contains classical material on variational methods for waveguide discontinuities and serves to illustrate a number of special techniques useful for rectangular waveguide discontinuities.

These methods are readily extended to other waveguides. It was my original intention to expand the number of examples, but because of space limitations, only a short treatment of the inductive post and a brief, general discussion of scattering from obstacles in a waveguide were added.

There is an abundance of papers on waveguide discontinuities, as well as several books on the subject, so the reader will have no difficulty in finding examples to study and review. Chapter 9 on periodic structures has been left unchanged. It covers the fundamentals in sufficient depth that the extension of the theory and its application to specific structures should follow quite readily.

An additional example has been added to Chapter 10 on integral transform and function- theoretic techniques.

This example is that of a bifurcated parallel-plate waveguide with a dielectric slab. This particular example provides useful physical insight into the basic properties of a wide microstrip line and follows quite closely the theory developed by El-Sherbiny. In particular, it illustrates the crucial importance of edge conditions in order to obtain a unique solution. It also illustrates that the LSE and LSM modes in a microstrip line are coupled through the edge conditions in accordance with the theory given by Omar and Shiinemann.

Chapter lIon surface waveguides and Chapter 12 on artificial dielectrics are unchanged from the original edition. I had considered deleting Chapter 12 and expanding Chapter 11, but decided against it on the basis that a number of people had expressed the hope that a discussion of artificial dielectrics would remain in the revised edition. During the years I used the original book for graduate courses, I generally found that graduate students were not very familiar with the use of Fourier and Laplace transforms in the complex plane.

I would normally provide the students with supplementary material on this topic. In the revised edition this material has been added to the Mathematical Appendix.