An IEEE Press Classic Reissue
FOUNDATIONS FOR
MICROWAVE ENGINEERING
SECOND EDITION
IEEE PRESSSERIESON ELECTROMAGNETIC WAVE THEORY
The IEEE Press Series on Electromagnetic Wave Theory consists of new titles as well as reprintings and revisions of
recognized classics that maintain long-term archival significance in electromagnetic waves and applications.
Series Editor
Donald G. Dudley
University ofArizona
Advisory Board
Robert E. Collin
Case Western Reserve University
Akira Ishimaru
University of Washington
D. S. Jones
University of Dundee
Associate Editors
ELECTROMAGNETIC THEORY, SCATTERING, AND DIFFRACTION
Ehud Heyman
Tel-Aviv University
INTEGRAL EQUATION METHODS
Donald R. Wilson
University ofHouston
DIFFERENTIAL EQUATION METHODS
Andreas C. Cangellaris
University ofArizona
ANTENNAS, PROPAGATION, AND MICROWAVES
David R. Jackson
University ofHouston
BOOKS IN THE IEEE PRESS SERIES ON ELECTROMAGNETIC WAVE THEORY
Christopoulos, C., The Transmission-Line Modeling Methods: TLM
Clemmow, P C., The Plane Wave Spectrum Representation of Electromagnetic Fields
Collin, R. E., Field Theory of Guided Waves, Second Edition
Collin, R. E., Foundations for Microwave Engineering, Second Edition
Dudley, D. G., Mathematical Foundations for Electromagnetic Theory
Elliot, R. S., Electromagnetics: History, Theory, and Applications
Felsen, L. B., and Marcuvitz, N., Radiation and Scattering of Waves
Harrington, R. F., Field Computation by Moment Methods
Hansen et aI., Plane-Wave Theory of Time-Domain Fields: Near-Field Scanning Applications
Ishimaru, A., Wave Propagation and Scattering in Random Media
Jones, D. S., Methods in Electromagnetic Wave Propagation, Second Edition
Lindell, I. V., Methods for Electromagnetic Field Analysis
Peterson et al., Computational Methods for Electromagnetics
Tai, c. T., Generalized Vector and Dyadic Analysis: Applied Mathematics in Field Theory
Tai, C. T., Dyadic Green Functions in Electromagnetic Theory, Second Edition
Van Bladel, 1., Singular Electromagnetic Fields and Sources
Volakis et aI., Finite Element Method for Electromagnetics: Antennas, Microwave Circuits, and Scattering Applications
Wait, J., Electromagnetic Waves in Stratified Media
An IEEE Press Classic Reissue
FOUNDATIONS FOR
MICROWAVE ENGINEERING
SECOND EDITION
--"'.-------
IEEE Press Series on
Electromagnetic Wave Theory
Robert E. Collin
Professor ofElectrical Engineering
Case Western Reserve University
Cleveland, OR
IEEE Antennas & Propagation Society, Sponsor
IEEE Microwave Theory and Techniques Society, Sponsor
+IEEE
The Institute of Electrical and Electronics Engineers, Inc.,New York
ffiWILEY
~INTERSCIENCE
A JOHN WILEY & SONS, INC., PUBLICATION
© 2001 THE INSTITU'TE OF ELECTRICAL AND ELECTRONICS
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ISBN 0-7803-6031-1
Library of Congress Cataloging-in-Publication Data
Collin, Robert E.
Foundations for microwave engineering / Robert E. Collin.-- 2nd ed.
p. em. - (IEEE Press series on electromagnetic wave theory)
Originally published: New York: McGraw Hill, c1992.
"An IEEE Press classic reissue."
Includes bibliographical references and index.
ISBN 0-7803-6031-1
1. Microwave devices. I. Title. II. Series.
TK7876 .C645 2000
621.381 '3--dc21
00-053874
FOREWORD TO THE REISSUED EDITION
The purpose of the IEEE Press Series on Electromagnetic Wave Theory is to publish
books of long-term archival significance in electromagnetics. Included are new titles as
well as reprints and revisions of recognized classics. The book Foundations for Micro
wave Engineering, by Robert E. Collin, is by any measure such a classic. The original
edition of the book appeared in 1966 and remained in print until the appearance of the
second edition in 1992, a span of 26 years.
In the second edition, Professor Collin completely updated and modernized his book
to include the many advances that had occurred in microwave engineering since the
appearance of the original edition. That the second edition has gone out of print has
caused concern among many of my colleagues in the IEEE Antennas and Propagation
Society (APS) and the IEEE Microwave Theory and Techniques Society (MTT). We at
the IEEE Press are delighted to be able to overcome this difficulty by introducing a
reprint of the second edition into our Series on Electromagnetic Wave Theory. The book
is a thorough and in-depth exposition on microwave engineering. Furthermore, it will
make an excellent companion to Professor Collin's book, Field Theory ofGuided Waves,
also included in the series.
Professor Collin has been a valued colleague for many years. He is the author or
coauthor of five books and more than 150 technical papers. His contributions to
electromagnetics span a wide range of subjects and have brought him international re
spect and many awards. Among these are election to the National Academy of Engineer
ing, the IEEE Electromagnetics FieldAward, the IEEE/APS Distinguished Career Award,
an IEEE/APS Schelkunoff Prize Paper Award, and the IEEE Third Millennium Medal.
It is with pleasure that I welcome this book into the series.
Donald G. Dudley
University ofArizona
Series Editor
IEEE Press Series on Electromagnetic Wave Theory
IEEE Press
445 Hoes Lane, P.O. Box 1331
Piscataway, NJ 08855-1331
IEEE Press Editorial Board
Robert J. Herrick, Editor in Chief
M.Akay
J. B. Anderson
~ M. Anderson
J. E. Brewer
M.Eden
M. E. El-Hawary
R. F. Hoyt
S. V. Kartalopoulos
D. Kirk
M.S. Newman
M.Padgett
W.O. Reeve
G. Zobrist
Kenneth Moore, Director ofIEEE Press
Catherine Faduska, Senior Acquisitions Editor
Linda Matarazzo, Associate Acquisitions Editor
Marilyn G. Catis, Marketing Manager
Mark Morrell, Associate Production Editor
IEEE Antennas & Propagation Society, Sponsor
AP-S Liaison to IEEE Press, Robert Mailloux
IEEE Microwave Theory and Techniques Society, Sponsor
MTT-S Liaison to IEEE Press, Karl Varian
Cover design: William T. Donnelly, WT Design
CONTENTS
Preface
Introduction
1
1.1 Microwave Frequencies
1.2 Microwave Applications
1.3 Microwave Circuit Elements and Analysis
References
Constitutive Relations
Static Fields
2 Electromagnetic Theory
2.1 Maxwell's Equations
2.2
2.3
2.4 Wave Equation
2.5
2.6
2.7
Energy and Power
Boundary Conditions
Plane Waves
Plane Waves in Free Space
Reflection from a Dielectric Interface
1. Parallel Polarization
2. Perpendicular Polarization
Reflection from a Conducting Plane
Potential Theory
2.8
2.9
2.10
*2.11 Derivation of Solution for Vector Potential
2.12
Lorentz Reciprocity Theorem
Problems
References
3 Transmission Lines and Waveguides
Part 1 Waves on Transmission Lines
3.1 Waves on An Ideal Transmission Line
3.2
Terminated Transmission Line: Resistive Load
xv
1
1
3
6
16
17
17
23
28
31
33
39
44
44
49
49
52
53
56
59
62
65
70
71
72
72
78
vii
viii CONTENTS
Capacitive Termination
Steady-State Sinusoidal Waves
3.3
3.4
3.5 Waves on a Lossy Transmission Line
3.6
3.7
3.8
3.9
3.10
Loss-Free Transmission Line
Low-Loss Transmission Line
Terminated Transmission Line: Sinusoidal Waves
Terminated Lossy Line
Part 2 Field Analysis of Transmission Lines
Classification of Wave Solutions
TEM Waves
TE Waves
TM Waves
Transmission Lines (Field Analysis)
Lossless Transmission Line
Transmission Line with Small Losses
Transmission-Line Parameters
Inhomogeneously Filled Parallel-Plate Transmission Line
Low-Frequency Solution
High-Frequency Solution
Planar Transmission Lines
3.11
3.12 Microstrip Transmission Line
Low-Frequency Solutions
Microstrip Attenuation
High-Frequency Properties of Microstrip Lines
Attenuation
Coupled Microstrip Lines
Strip Transmission Lines
Attenuation
Coupled Strip Lines
Coplanar Transmission Lines
Attenuation
High-Frequency Dispersion
Part 3 Rectangular and Circular Waveguides
Rectangular Waveguide
TE Waves
Power
Attenuation
Dominant TE 10 Mode
TM Modes
Circular Waveguides
TM Modes
TE Modes
3.13
3.14
3.15
3.16
3.17
3.18
3.19 Wave Velocities
Phase Velocity
Group Velocity
Energy- FloV\T Velocity
Ridge Waveguide
Fin Line
Problems
References
3.20
3.21
82
85
86
88
89
89
94
96
96
99
100
102
104
104
108
112
117
121
123
125
130
136
153
158
163
164
170
171
173
175
178
180
180
181
182
186
187
190
193
194
194
196
198
199
200
204
205
208
210
219