"Field Theory of Guided Waves" Second Edition by Robert E. Collin is a comprehensive textbook on the theory and application of guided waves in electromagnetism. The book covers fundamental electromagnetic theory, including Maxwell's equations, field intensity and flux density relationships, electromagnetic energy and power flow, boundary conditions, field singularities, and the wave equation. It also discusses auxiliary potential functions, field equivalence principles, and the integration of the inhomogeneous Helmholtz equation. The text then moves on to Green's functions, their properties, and applications in solving boundary-value problems, as well as their use in scattering theory and integral equations. The book explores transverse electromagnetic waves, including TEM waves in various coordinate systems, reflection and transmission at interfaces, wave matrices, and wave propagation in anisotropic media. It also covers transmission lines, including their characteristic impedance, variational methods, and integral equations for planar transmission lines. The text then delves into waveguides and cavities, discussing their general properties, modes, power, energy, and attenuation, as well as their experimental determination and cavity perturbation theory. The book also addresses inhomogeneously filled waveguides and dielectric resonators, including dielectric-slab-loaded guides, the Rayleigh-Ritz method, and dielectric waveguides. It covers the excitation of waveguides and cavities using various antenna types and coupling methods. Variational methods for waveguide discontinuities are discussed, along with periodic structures, integral transform techniques, surface waveguides, and artificial dielectrics. The book concludes with mathematical appendices covering vector analysis, dyadic analysis, matrices, calculus of variations, and special functions. The text is supported by references, bibliographies, and a variety of problems for practice."Field Theory of Guided Waves" Second Edition by Robert E. Collin is a comprehensive textbook on the theory and application of guided waves in electromagnetism. The book covers fundamental electromagnetic theory, including Maxwell's equations, field intensity and flux density relationships, electromagnetic energy and power flow, boundary conditions, field singularities, and the wave equation. It also discusses auxiliary potential functions, field equivalence principles, and the integration of the inhomogeneous Helmholtz equation. The text then moves on to Green's functions, their properties, and applications in solving boundary-value problems, as well as their use in scattering theory and integral equations. The book explores transverse electromagnetic waves, including TEM waves in various coordinate systems, reflection and transmission at interfaces, wave matrices, and wave propagation in anisotropic media. It also covers transmission lines, including their characteristic impedance, variational methods, and integral equations for planar transmission lines. The text then delves into waveguides and cavities, discussing their general properties, modes, power, energy, and attenuation, as well as their experimental determination and cavity perturbation theory. The book also addresses inhomogeneously filled waveguides and dielectric resonators, including dielectric-slab-loaded guides, the Rayleigh-Ritz method, and dielectric waveguides. It covers the excitation of waveguides and cavities using various antenna types and coupling methods. Variational methods for waveguide discontinuities are discussed, along with periodic structures, integral transform techniques, surface waveguides, and artificial dielectrics. The book concludes with mathematical appendices covering vector analysis, dyadic analysis, matrices, calculus of variations, and special functions. The text is supported by references, bibliographies, and a variety of problems for practice.