Theory and Computation of Characteristic Modes for Conducting Bodies

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Release : 1970
Genre : Electric conductivity
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Theory and Computation of Characteristic Modes for Conducting Bodies - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Theory and Computation of Characteristic Modes for Conducting Bodies write by Roger F. Harrington. This book was released on 1970. Theory and Computation of Characteristic Modes for Conducting Bodies available in PDF, EPUB and Kindle. A theory of characteristic modes for conducting bodies is developed starting from the operator formulation for the current. The mode currents form a weighted orthogonal set over the conductor surface, and the mode fields form an orthogonal set over the sphere at infinity. It is shown that the modes are the same ones introduced by Garbacz to diagonalize the scattering matrix of the body. Formulas for the use of these modes in antenna and scatterer problems are given. A procedure for computing the characteristic modes for bodies of arbitrary shape is developed, and applied to conducting bodies of revolution and to wire objects. Illustrative examples of the computation of characteristic currents and characteristic fields are given for a cone-sphere, a disk, and a wire arrow. Modal solutions using these modes are computed for representative antenna and scattering problems to illustrate convergence of the solution as the number of modes is increased. For electrically small and intermediate size bodies, only a few modes are needed to characterize the electromagnetic behavior of the body. (Author).

A Surface Formulation for Characteristic Modes of Material Bodies

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Release : 1974
Genre :
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A Surface Formulation for Characteristic Modes of Material Bodies - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Surface Formulation for Characteristic Modes of Material Bodies write by Yu Chang. This book was released on 1974. A Surface Formulation for Characteristic Modes of Material Bodies available in PDF, EPUB and Kindle. A theory of characteristic modes for material bodies is developed using equivalent surface currents. This is in contrast to the alternative approach using induced volume currents. The mode currents form a weighted orthogonal set over the material body surface, and the mode fields form an orthogonal set over the sphere at infinity. The characteristic modes of material bodies have most of the properties of those for perfectly conducting bodies. Formulas for the use of these modes in electromagnetic scattering problems are given. A procedure for computing the characteristic modes is developed, and applied to two-dimensional bodies. Illustrative examples of the computation of characteristic currents and scattering cross sections are given for cylinders of different material constants.

Characteristic Modes

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Release : 2015-05-19
Genre : Technology & Engineering
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Book Rating : 88X/5 ( reviews)

Characteristic Modes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Characteristic Modes write by Yikai Chen. This book was released on 2015-05-19. Characteristic Modes available in PDF, EPUB and Kindle. Describes how to systematically implement various characteristic mode (CM) theories into designs of practical antenna systems This book examines both theoretical developments of characteristic modes (CMs) and practical developments of CM-based methodologies for a variety of critical antenna designs. The book is divided into six chapters. Chapter 1 provides an introduction and discusses the recent advances of the CM theory and its applications in antenna engineering. Chapter 2 describes the formulation of the characteristic mode theory for perfectly electrically conducting (PEC) bodies and discusses its numerical implementations. Chapter 3 presents the CM theory for PEC structures embedded in multilayered medium and its applications. Chapter 4 covers recent advances in CM theory for dielectric bodies and also their applications. Chapter 5 discusses the CM theory for N-port networks and its applications to the design of antenna arrays. Finally, Chapter 6 discusses the design of platform-integrated antenna systems using characteristic modes. This book features the following: Introduces characteristic mode theories for various electromagnetic structures including PEC bodies, structures in multilayered medium, dielectric bodies, and N-port networks Examines CM applications in electrically small antennas, microstrip patch antennas, dielectric resonator antennas, multiport antennas, antenna arrays, and platform mounted antenna systems Discusses numerical algorithms for the implementation of the characteristic mode theories in computer code Characteristic Modes: Theory and Applications in Antenna Engineering will help antenna researchers, engineers, and students find new solutions for their antenna design challenges.

Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1971

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Release : 1971
Genre : Bibliography
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Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1971 - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1971 write by . This book was released on 1971. Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1971 available in PDF, EPUB and Kindle.

Scientific and Technical Aerospace Reports

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Release : 1986
Genre : Aeronautics
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Scientific and Technical Aerospace Reports - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Scientific and Technical Aerospace Reports write by . This book was released on 1986. Scientific and Technical Aerospace Reports available in PDF, EPUB and Kindle.