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This book presents the theory of electromagnetic (EM) waves for
upper undergraduate, graduate and PhD-level students in
engineering. It focuses on physics and microwave theory based on
Maxwell's equations and the boundary conditions important for
studying the operation of waveguides and resonators in a wide
frequency range, namely, from approx. 10**9 to 10**16 hertz. The
author also highlights various current topics in EM field theory,
such as plasmonic (comprising a noble metal) waveguides and
analyses of attenuations by filled waveguide dielectrics or
semiconductors and also by conducting waveguide walls. Featuring a
wide variety of illustrations, the book presents the calculated and
schematic distributions of EM fields and currents in waveguides and
resonators. Further, test questions are presented at the end of
each chapter.
This book describes the solution of electrodynamic boundary
problems, which arose in the practical life of a designer. Only a
few problems can be solved analytically and some of these solutions
are given in the book, for example, the computation of a strip line
in a rectangular or circular cylinder capacitance. Practical lines'
configurations require computational work. As the authors' practice
shows, the use of Green functions, leading to singular integral
equations, is a powerful and pretty universal method to solve
different boundary problems, including electrodynamic ones. The
book presents the results of computations of microstrip lines on
magnetized (longitudinally and transversally) ferrite and
semiconductor substrates taking into account all the geometric
sizes. The properties of gyrotropic media are described in the book
for the reader's convenience. The geometrical shape may be
practically any. The integral equations are exact and give the
proper field near the edges. Actually, the use of singular integral
equations reduces the experimental verification to minimum. The
book will be useful for students, engineers, designers and
researchers. It contains a lot of computed results, which are
verified experimentally and can be used immediately.
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