BOOK

GUIDED ELECTROMAGNETIC WAVES
Properties and Analysis


AUTHOR: Prof. Michal Mrozowski

Department of Electronics
Technical University of Gdansk
ul. Narutowicza 11/12, 80-952 Gdansk, Poland tel: (048 58) 347 2549 
fax: (048 58) 347 1228 
e-mail:mim@pg.gda.pl

Publisher: Research Studies Press Ltd.

CONTENTS

Series Editor's Foreword
Preface
Symbol conventions

Chapter 1. Introduction
1.1 Motivation and background
1.2 Overview of waveguides
1.3 Monographic texts on waveguide analysis

Chapter 2 Preliminary considerations
2.1 Formulation of the wave guidance problem
2.1.1 Statement of the problem
2.1.2 Problem definition in physical terms
2.2 Operator formulation of wave guidance problems
2.2.1 Modes and mode nomenclature
2.2.2 Examples of mode classification schemes
2.2.3 Equivalence of operator formulations

Chapter 3 Standard and generalized eigenvalue problems
3.1 Spectral problem
3.2 Symmetric operators
3.2.1 Generalized eigenproblems
3.3 Nonsymmetric operators
3.4 Pseudo-symmetric and pseudo-transposed problems
3.5 Pairs of complementary solutions in generalized eigenproblems
3.5.1 Spectra with inversion symmetry
3.5.2 Complex conjugate pairs of eigenvalues
3.5.3 Orthogonality relations for problems with spectra possessing inversion symmetry
3.5.4 Higher order symmetry
3.6 Matrix eigenvalue problems
3.7 Completeness of eigenfunctions
3.8 Operator pencils

Chapter 4 Methods for solving operator equations
4.1 Variational techniques
4.1.1 Symmetric generalized eigenvalue problems
4.1.2 Nonsymmetric generalized eigenvalue problems
4.1.3 Significance of variational expressions
4.1.4 The Rayleigh-Ritz procedure
4.2 Method of moments
4.2.1 Galerkin method
4.2.2The least squares method
4.3 Projection methods
4.4 Nonstandard eigenvalue problems
4.5 Iterative techniques for solving eigenvalue problems
4.5.1 The power method
4.5.2 The inverse iteration method
4.5.3 Perturbation of the operator
4.5.4 The Iterative Eigenfunction Expansion Method
4.6 Function expansion and discretization

Chapter 5 Preliminary electromagnetic background
5.1 Energy relations - Poynting theorem
5.1.1 Energy relations in lossless media
5.1.2 Poynting theorem for the waveguides
5.1.3 Energy stored in the field
5.2 Dispersive media
5.2.1 Poynting theorem for weakly anharmonic fields
5.3 Permittivity and permeability tensors
5.4 Isometries in electromagnetics
5.4.1 Rotations and reflections
5.4.2 Time reversal
5.5 Symmetries in waveguides
5.6 Isotropic guides
5.6.1 Symmetry groups of 2D objects
5.6.2 Symmetry induced properties of modes
5.7 Anisotropic guides
5.7.1 Reversal of the propagation direction
5.7.2 Other transformations
5.8 Consequences of the symmetries

Chapter 6 Waves in a parallel plate guide
6.1 Isotropic media
6.1.1 Scalar potentials
6.1.2 Layered media - continuity conditions
6.1.3 Operator formulation
6.2 Gyrotropic media
6.2.1 Generalized Hertz potentials
6.2.2 Stratified gyromagnetic medium - continuity conditions
6.2.3 Operator formulation
6.2.4 Special cases
6.2.5 Eigenfunctions and eigenvalues of a stratified ferrite medium

Chapter 7 Waves in general waveguides
7.1 Wave operators for anisotropic medium
7.1.1 Formulations involving six field components
7.1.2 Formulations involving transverse field components
7.1.3 Operator pencil
7.2 Properties of operators in lossy anisotropic guides
7.2.1 Symmetry and pseudo-symmetry of operators
7.2.2 General anisotropic and gyrotropic lossy media
7.2.3 Anisotropic lossy media
7.3 Properties of operators in lossless anisotropic guides
7.3.1 Simplified $\omega $ formulation
7.3.2 Conditions for symmetry of operators
7.3.3 Definiteness of operators
7.4 Power-energy relations for modes in lossy guides
7.5 Momentum-energy relations for modes in lossy guides

Chapter 8 Bidirectional guides and complementary modes
8.1 Relations for complementary modes
8.1.1 Ancillary transformations
8.1.2 Complementary pairs
8.1.3 Physical nature of ancillary transformations
8.1.4Transposed medium guide
8.2 Bidirectional guides
8.2.1 Guides without spatial symmetry
8.2.2 Symmetry with respect to the reflection in a plane perpendicular to the z-axis
8.2.3 Symmetry with respect to the inversion in a point on the z axis Relations between complementary modal fields
8.2.4 Symmetry with respect to the rotation by $\pi $ about an axis perpendicular to z
8.2.5 Combined symmetries and reversal of the biasing magnetic field
8.3 Recapitulation

Chapter 9  Strictly bidirectional waveguides
9.1 Generalized eigenvalue problems for strictly bidirectional guides
9.1.1 $\beta $ formulation involving four field components
9.1.2 $\omega $ formulation involving four field components
9.1.3 Decoupling of magnetic and electric fields
9.1.4 Isotropic media
9.2 Quadratic operator pencils
9.3 Properties of operators
9.3.1 Symmetry and pseudo-symmetry of transverse field formulations
9.3.2 Properties of operators in decoupled field formulation
9.4 Properties of operators in quadratic pencils
9.4.1 Definiteness of component operators
9.4.2 Relation between pencils
9.4.3 Critical points
9.4.4 Eigenfunctions at critical points

Chapter 10 Mode orthogonality
10.1 Operator formalism and complementary solutions
10.2 Orthogonality of modes in general anisotropic media
10.2.1 Other relations
10.3 Bidirectional guides
10.3.1 Strictly bidirectional structures
10.3.2 Generic relations for bidirectional guides
10.4 Orthogonality relations for pencils
10.5 Orthogonality at critical points

Chapter 11 Waves in lossless guides
11.1 Classical approach
11.1.1 Energy balance for propagating waves
11.1.2 Velocity of energy transport
11.2 Operator formalism
11.2.1 Group velocity - revisited
11.2.2 Energy, power and momentum expressions
11.3 Propagating waves
11.3.1 Boundedness of group velocity
11.3.2 Forward and backward waves
11.3.3 Phase and group velocities
11.3.4 Guides loaded with isotropic dielectric
11.3.5 Physical interpretation - energy and momentum conservation
11.4 Cutoff waves
11.4.1 Power and momentum identities for cutoff waves
11.4.2 Consequences of the power identities - capacitive and inductive modes
11.4.3 Variational expression for cutoff waves
11.4.4 Cutoff modes in strictly bidirectional guides
11.4.5 Critical points - strictly bidirectional guides
11.5 Complex waves
11.5.1 Strictly bidirectional guides
11.6 Dispersion characteristics - strictly bidirectional guides
11.7 Concluding remarks - complex modes at fixed $\beta $

Chapter 12 Complex modes
12.1 History of the research into complex modes
12.2 Complex modes in isotropic guides
12.2.1 Complex waves versus propagating modes in lossy guides
12.2.2 Correspondence between leaky and complex waves
12.3 Complex modes in gyrotropic guides
12.4 Complex modes in the discontinuity analysis
12.5 Technical applications of complex modes
12.6 Theories of complex modes
12.6.1 Weak perturbation of homogeneous guides
12.6.2 Guide geometries and modes prone to complex waves
12.6.3 Large inhomogeneity in strictly bidirectional guides
12.6.4 General physical conditions for creation of complex modes
12.6.5 Necessary and sufficient conditions
12.7 Validation of the theory of complex waves
12.7.1 Strong inhomogeneity
12.8 Mode nomenclature

Appendix A Vector and integral identities
A.1 Multiplication and differentiation of vectors
A.2 Integral identities

Appendix B Review of linear spaces
B.1 Linear spaces
B.2 Hilbert spaces and inner products
B.3 Linear operators
B.3.1 Bounded and unbounded operators
B.3.2 Spectral problems
B.4 Sesquilinear forms

Appendix C Sturm-Liouville problem
C.1 Definition and properties

Appendix D Generalized eigenfunctions and polynomial operator pencils
D.1 Generalized eigenfunctions
D.2 Polynomial operator pencils

Index

 
 
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This page last updated on November 10, 1997.