Updated with color and gray scale illustrations, a companion website housing supplementary material, and new sections covering recent developments in. Get this from a library! Antenna theory: analysis and design. [Constantine A Balanis] -- This book introduces the fundamental principles of antenna theory and . Ebook Antenna Theory And Design. SKU: c By Stutzman Department: Engineering ISBN: Edition: 3. Ebook Antenna Theory And.
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Editorial Reviews. Review. “This book is a good reference for advanced students inantenna Antenna Theory and Applications 1st Edition, Kindle Edition. by. Read "Antenna Theory Analysis and Design" by Constantine A. Balanis available from Rakuten Kobo. Sign up today and get $5 off your first download. Updated. Compre Antenna Theory: Analysis and Design (English Edition) de Constantine A. Balanis na musicmarkup.info Confira também os eBooks mais vendidos.
Due to the variety of methods of analysis and design, and the different antenna structures available, the applications covered in this book are made to some of the most basic and practical antenna configurations. Among these antenna configurations are linear dipoles; loops; arrays; broadband antennas; aperture antennas; horns; microstrip antennas; and reflector antennas. The text contains sufficient mathematical detail to enable undergraduate and beginning graduate students in electrical engineering and physics to follow the flow of analysis and design. Presents new sections on flexible and conformal bowtie, Vivaldi antenna, antenna miniaturization, antennas for mobile communications, dielectric resonator antennas, and scale modeling Provides color and gray scale figures and illustrations to better depict antenna radiation characteristics Includes access to a companion website housing MATLAB programs, Java-based applets and animations, Power Point notes, Java-based interactive questionnaires and a solutions manual for instructors Introduces over additional end-of-chapter problems Antenna Theory: Analysis and Design, Fourth Edition is designed to meet the needs of senior undergraduate and beginning graduate level students in electrical engineering and physics, as well as practicing engineers and antenna designers. Constantine A.
In the manner of rendering the material and in the number of thin antenna variants considered by the author, the eBook comes close to a handbook, which makes the results set forth in it much easier to use. Undoubtedly B.
Yakov S. The theory of thin antennas underlies the antenna analysis, as they represent one of the main types of radiators and are extensively put into practice both as independent antennas and as elements of more complicated antennas.
Here, techniques for calculations of the electrical characteristics of thin linear antennas are described and analyzed consistently, in particular, the methods of Poynting vector and the induced electromotive force emf first and second formulations as well as the integral equation method for the antenna conductor current. The theorem of the oscillating power is shown to allow bringing the difficult answers of the antenna theory to light. The eBook presents several new methods of antenna analysis and design, including the theory of electrically coupled lines, and the methods of complex potential, of the compensation, of the impedance line, and of the mathematical programming among others.
New results are obtained.
The complex potential method is generalized to inhomogeneous media and is employed in conical and parabolic problems. The theory of electrically coupled lines allows considering theoretical problems of multi-conductor cables and multi-radiator antennas.
The compensation method permits creating a weak field area in the near region of a transmitting antenna. The method of impedance line is applied to antennas with loads, and the method of mathematical programming offers selecting loads to develop antennas with required characteristics.
It is shown how the methods of dipoles and monopoles calculation are generalized to the more complicated structures: an antenna with displaced feed point, with losses in the wire, with the lumped and distributed loads, multi-wires, multi-radiators, folded and multi-folded antennas, and antennas of parallel wires with different length.
The duality principle provides the slot antenna analysis. The methods described enable calculating designs of new types of antennas, particularly, the self-complementary ones. A self-complementary structure exhibits constant and purely resistive input impedance in a wide frequency range.
In the general case, similar properties pertain to the three-dimensional self-complementary antennas, their variants being considered in the eBook. Different types of arrays including reflect and adaptive arrays are treated in the eBook in detail. The reciprocity theorem for a reflect array permits to determine a field phase step in a signal reradiated by a reflect array element and to build a reflect array with any given radiation direction.
Close attention is paid to the field compensation in the near region of a transmitting antenna and to creation of the dark spot. The shape and dimensions of dark spots and the irradiation reduction factor are found. Also, a compensation method seeking to form a weak field area over a broad frequency band is considered.
Broadband field compensation is shown to be achievable in various structures where the required anti-phase second field is established either by an auxiliary antenna of identical type or by radiators located at equal distances from the compensation point, or by flat reflectors.
To analyze such space-time problems, it is necessary to localize the point in the problem configuration and register the instant at which a given wave field quantity occurs in its evolution following the source excitation.
To this end, we will employ the Cartesian reference frame that is defined via its basis vectors and the origin denoted by. Consequently, the standard basis allows specifying the position of an observer via the linear combination: 1.
Such linear combinations of the Cartesian basis vectors can be represented as 1D arrays and will be further represented by boldface symbols. In particular, the position vector will be denoted by x and its components are denoted by for. A natural extension in this respect is a Cartesian tensor of rank 2 that can be represented by a 2D array.
Such quantities will be denoted by underlined boldface symbols. An example from the category is a quantity denoted by , for instance, whose components are for.
Consequently, we shall use the following notation for the products between arrays: 1. Finally, for a tensor of rank 2, say , the tensor transpose is denoted by and its components are found according to 1.