Electromagnetic Fields

The definitive reference on electromagnetic field, updated and expanded
This definitive text and reference on electromagnetic fields has been updated and expanded to twice its original content. It incorporates the latest methods, theory, formulations, and applications that relate to today′s technologies. With an emphasis on basic principles and a focus on electromagnetic formulation and analysis, Electromagnetic Fields, Second Edition includes:
Detailed discussions of electrostatic fields, potential theory, propagation in waveguides and unbounded space, scattering by obstacles, penetration through apertures, and field behavior at high and low frequencies
Many analytical developments suitable for exploitation by the numerical analyst, including the popular method of moments
Comprehensive discussion of singularities of sources and fields with delineations of field properties at edges and at sector and cone vertices
Extensive appendices that of themselves are worth the cost of the book
A large, useful, carefully compiled set of references
With descriptions of methods for solving problems and with many applications of theory to electromagnetic engineering, this is a valuable resource for students, professors, and practicing engineers. It is also a comprehensive textbook for graduate–level courses in various aspects of electromagnetic theory.

Spis treści:
Preface.
1. Linear Analysis.
1.1 Linear Spaces.
1.2 Linear Transformations.
1.3 The Inversion Problem.
1.4 Green’s Functions.
1.5 Reciprocity.
1.6 Green’s Dyadics.
1.7 Convergence of a Series.
1.8 Eigenfunctions.
1.9 Integral Operators.
1.10 Eigenfunction Expansions.
1.11 Discretization.
1.12 Matrices.
1.13 Solution of Matrix Equations: Stability.
1.14 Finite Differences.
1.15 Perturbations.
2. Variational Techniques.
2.1 Stationary func tionals.
2.2 A Suitable Functional for the String Problem.
2.3 Functionals for the General L Transformation.
2.4 Euler’s Equations of Some Important Functionals.
2.5 Discretization of the Trial Functions.
2.6 Simple Finite Elements for Planar Problems.
2.7 More Finite Elements.
2.8 Direct Numerical Solution of Matrix Problems.
2.9 Iterative Numerical Solution of Matrix Problems.
3. Electrostatic Fields in the Presence of Dielectrics.
3.1 Volume Charges in Vacuum.
3.2 Green’s Function for Infinite Space.
3.3 Multipole Expansion.
3.4 Potential Generated by a Single Layer of Charge.
3.5 Potential Generated by a Double Layer of Charge.
3.6 Potential Generated by a Linear Charge.
3.7 Spherical Harmonics.
3.8 Dielectric Materials.
3.9 Cavity Fields.
3.10 Dielectric Sphere in an External Field.
3.11 Dielectric Spheroid in an Incident Field.
3.12 Numerical Methods.
4. Electrostatic Fields in the Presence of Conductors.
4.1 Conductivity.
4.2 Potential Outside a Charged Conductor.
4.3 Capacitance Matrix.
4.4 The Dirichlet Problem.
4.5 The Neumann Problem.
4.6 Numerical Solution of the Charge Density Problem.
4.7 Conductor in an External Field.
4.8 Conductors in the Presence of Dielectrics.
4.9 Current Injection into a Conducting Volume.
4.10 Contact Electrodes.
4.11 Chains of Conductors.
5. Special Geometries for the Electrostatic Field.
5.1 Two–Dimensional Potentials in the Plane.
5.2 Field Behavior at a ConductingWedge.
5.3 Field Behavior at a DielectricWedge.
5.4 Separation of Variables in Two Dimensions.
5.5 Two–Dimensional Integral Equations.
5.6 Finite Methods in Two Dimensions.
5.7 Infinite Computational Domains.
5.8 More Two–Dimensional Techniques.
5.9 Layered Media.
5.10 Apertures.
5.11 Axisymmetric Geometries.
5.12 Conical Boundaries.
6. Magnetostatic Fields.
6.1 Magnetic Fields in Free Space: Vector Potential.
6.2 Fields Generated by Linear Currents.
6.3 Fields Generated by Surface Currents.
6.4 Fields at Large Distances from the Sources.
6.5 Scalar Potential in Vacuum.
6.6 Magnetic Materials.
6.7 Permanent Magnets.
6.8 The Limit of Infinite Permeability.
6.9 Two–Dimensional Fields in the Plane.
6.10 Axisymmetric Geometries.
6.11 Numerical Methods: Integral Equations.
6.12 Numerical Methods: Finite Elements.
6.13 Nonlinear Materials.
6.14 Strong Magnetic Fields and Force–Free Currents.
7. Radiation in Free Space.
7.1 Maxwell’s Equations.
7.2 TheWave Equation.
7.3 Potentials.
7.4 Sinusoidal Time Dependence: Polarization.
7.5 Partially Polarized Fields.
7.6 The Radiation Condition.
7.7 Time–Harmonic Potentials.
7.8 Radiation Patterns.
7.9 Green’s Dyadics.
7.10 Multipole Expansion.
7.11 Spherical Harmonics.
7.12 Equivalent Sources.
7.13 LinearWire Antennas.
7.14 CurvedWire Antennas: Radiation.
7.15 Transient Sources.
8. Radiation in a Material Medium.
8.1 Constitutive Equations.
8.2 PlaneWaves.
8.3 Ray Methods.
8.4 Beamlike Propagation.
8.5 Green’s Dyadics.
8.6 Reciprocity.
8.7 Equivalent Circuit of an Antenna.
8.8 Effective Antenna Area.
9. Plane Boundaries.
9.1 PlaneWave Incident on a Plane Boundary.
9.2 Propagation Through a Layered Medium.
9.3 The Sommerfeld Dipole Problem.
9.4 Multilayered Structures.
9.5 Periodic Structures.
9.6 Field Penetration Through Apertures.
9.7 Edge Diffraction.
10. Resonators.
10.1 Eigenvectors for an Enclosed Volume.
10.2 Excitation of a Cavity.
10.3 Determination of the Eigenvectors.
10.4 Resonances.
10.5 Open Resonators: Dielectric Resonances.
10.6 Aperture Coupling.
10.7 Green’s Dyadics.
11. Scattering: Generalities.
11.1 The Scattering Matrix.11.2 Cross Sections.
11.3 Scattering by a Sphere.
11.4 Resonant Scattering.
11.5 The Singularity Expansion Method.
11.6 Impedance Boundary Conditions.
11.7 Thin Layers.
11.8 Characteristic Modes.
12. Scattering: Numerical Methods.
12.1 The Electric Field Integral Equation.
12.2 The Magnetic Field Integral Equation.
12.3 The T–Matrix.
12.4 Numerical Procedures.
12.5 Integral Equations for Penetrable Bodies.
12.6 Absorbing Boundary Conditions.
12.7 Finite Elements.
12.8 Finite Differences in the Time Domain.
13. High– and Low–Frequency Fields.
13.1 Physical Optics.
13.2 Geometrical Optics.
13.3 Geometric Theory of Diffraction.
13.4 Edge Currents and Equivalent Currents.
13.5 Hybrid Methods.
13.6 Low–Frequency Fields: The Rayleigh Region.
13.7 Non–Conducting Scatterers at Low Frequencies.
13.8 Perfectly Conducting Scatterers at Low Frequencies.
13.9 Good Conductors.
13.10 Stevenson’s Method Applied to Good Conductors.
13.11 Circuit Parameters.
13.12 Transient Eddy Currents.
14. Two–Dimensional Problems.
14.1 E and H Waves.
14.2 Scattering by Perfectly Conducting Cylinders.
14.3 Scattering by Penetrable Circular Cylinders.
14.4 Scattering by Elliptic Cylinders.
14.5 Scattering byWedges.
14.6 Integral Equations for Perfectly Conducting Cylinders.
14.7 Scattering by Penetrable Cylinders.
14.8 Low–Frequency Scattering by Cylinders.
14.9 Slots in a Planar Screen.
14.10 More Slot Couplings.
14.11 Termination of a Truncated Domain.
14.12 Line Methods.
15. CylindricalWaveguides.
15.1 Field Expansions in a ClosedWaveguide.
15.2 Determination of the Eigenvectors.
15.3 Propagation in a Closed Waveguide.
15.4 Waveguide Losses.
15.5 Waveguide Networks.
15.6 Aperture Excitation and Coupling.
15.7 GuidedWaves in General Media.
15.8 Orthogonality