دانلود کتاب Electromagnetic Waves and Antennas

This text provides a broad and applications-oriented introduction to electromagnetic
waves and antennas. Current interest in these areas is driven by the growth in wireless
and fiber-optic communications, information technology, and materials science.
Communications, antenna, radar, and microwave engineers must deal with the generation,
transmission, and reception of electromagnetic waves. Device engineers working
on ever-smaller integrated circuits and at ever higher frequencies must take into
account wave propagation effects at the chip and circuit-board levels. Communication
and computer network engineers routinely use waveguiding systems, such as transmission
lines and optical fibers. Novel recent developments in materials, such as photonic
bandgap structures, omnidirectional dielectric mirrors, birefringent multilayer films,
surface plasmons, negative-index metamaterials, slow and fast light, promise a revolution
in the control and manipulation of light and other applications. These are just
some examples of topics discussed in this book. The text is organized around three
main topic areas:
• The propagation, reflection, and transmission of plane waves, and the analysis
and design of multilayer films.
• Waveguiding systems, including metallic, dielectric, and surface waveguides, transmission
lines, impedance matching, and S-parameters.
• Linear and aperture antennas, scalar and vector diffraction theory, plane-wave
spectrum, Fourier optics, superdirectivity and superresolution concepts, antenna
array design, numerical methods in antennas, and coupled antennas.
The text emphasizes connections to other subjects. For example, the mathematical
techniques for analyzing wave propagation in multilayer structures and the design of
multilayer optical filters are the same as those used in digital signal processing, such
as the lattice structures of linear prediction, the analysis and synthesis of speech, and
geophysical signal processing. Similarly, antenna array design is related to the problem
of spectral analysis of sinusoids and to digital filter design, and Butler beams are
equivalent to the FFT.