Antennas

From the Theory of Long Lines to Integral Equations

Boris Levin

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Hardback

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English

CRC Press
26 December 2024

Radio & television industry; Calculus & mathematical analysis; Microwave technology; Communications engineering & telecommunications; Computer networking & communications

This book describes both known and new results. In the sections devoted to the use of integral equations for the current in a linear metal radiator, the focus is on Leontovich's equation. An advantage of this equation is the simplicity of the solution and the absence of the argument φ in it because the integration over φ already performed. The refined solution makes it possible to determine the total sum of the series for the current, which is close to the known solution including only the first terms. The results of the synthesis of different types of antennas with capacitive loads are presented, which makes it possible to implement Hallen's hypothesis about the usefulness of applying such loads to create an in-phase current distribution in antennas and to obtain required characteristics.

New results include the widespread use of the complex potential method in relation to the calculation of capacitive structures in homogeneous and inhomogeneous media, antenna patterns and flows of electrical fields between antenna elements and in the surrounding space. In particular, the analysis of field flows makes it possible to substantiate a rigorous method for analyzing microstrip antennas. The characteristics of antennas in various conditions of their installation are considered and compared. The results of the use of multi-floors structures that provide in the wide frequency range the radiation in direction perpendicular to the antenna axis, and structures that make it possible to reduce the mutual influence of antennas located at different heights on a common mast are described.

By: Boris Levin
Imprint: CRC Press
Country of Publication: United Kingdom
Dimensions: Height: 234mm, Width: 156mm,
Weight: 1.147kg
ISBN: 9781032582153
ISBN 10: 1032582154
Pages: 524
Publication Date: 26 December 2024
Audience: College/higher education , Professional and scholarly , Primary , Undergraduate
Format: Hardback
Publisher's Status: Active

Preface. From straight radiators to long lines. Impedance and Complementary Antennas. Antenna analysis based on long lines’ theory. Integral equations for radiators’ currents. The problems of analysis. Application of method of complex potential. Synthesis problems. Some types of antennas and cables. Index.

Boris Levin was born in Saratov, Russia, in January 1937. He graduated from Leningrad Polytechnic Institute in 1960, received his Ph.D. in radio physics from Central Research Institute of Automatic Devices in Leningrad in 1969 and Doctor of Sciences Degree in Physics and Mathematics (Russian equivalent of professor degree) from S.-Petersburg Polytechnic University in 1993. From 1963 to 1998 he worked for the Design Department “Svyazmorproyekt” of Russia Shipbuilding Ministry. From 2008 to 2015 he works in Holon Institute of Technology, Israel. Currently he is retired. Levin Boris has authored 9 books, including three books in Russian and six books in English, including “The theory of thin antennas and its use in antenna engineering” (Bentham Science Publishers, 2013), “Antenna Engineering. Theory and Problems” (CRC Press, 2017), “Wide-range and Multi-frequency Antennas” (CRC Press, 2019) and “Antennas: Rigorous Methods of Analysis and Synthesis” (CRC Press, 2021). Further he has authored 94 original articles in technical journals, 97 papers in proceedings of international scientific conferences, and 45 patents. His main research interests are in the fields of the electromagnetic theory, the theory of linear antennas and antenna optimization. Major accomplishments are analysis, design and developments of new antennas.