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Aperture Antennas And Diffraction Theory
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Book Synopsis Aperture Antennas and Diffraction Theory by : Edward V. Jull
Download or read book Aperture Antennas and Diffraction Theory written by Edward V. Jull and published by IET. This book was released on 1981 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two alternative methods of aperture antenna analysis are described in this book.
Book Synopsis Diffraction Theory and Antennas by : Richard Henry Clarke
Download or read book Diffraction Theory and Antennas written by Richard Henry Clarke and published by . This book was released on 1980 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Three-dimensional-cavity-backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffraction Technique by : C. J. Reddy
Download or read book Analysis of Three-dimensional-cavity-backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffraction Technique written by C. J. Reddy and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Antenna Theory and Design by : Warren L. Stutzman
Download or read book Antenna Theory and Design written by Warren L. Stutzman and published by Wiley Global Education. This book was released on 2012-10-16 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introduction to antenna theory and design is suitable for senior undergraduate and graduate courses on the subject. Its emphasis on both principles and design makes it perfect both as a college text and as a reference to the practicing engineer. The final three chapters on computational electromagnetics for antennas are suitable for graduate work. Stutzman provides more of a pedagogical approach than its competitors, placing a greater emphasis on a concise easily understandable presentation of fundamentals and applications as well as computational methods. This third edition has been completely revised. New topics have been added on antennas for personal and mobile communications and base station antennas. Coverage of systems applications of antennas, arrays, microstrip and low-profile antennas, and antenna measurements has been updated and expanded, including more examples applied to modern applications.
Book Synopsis Application of Wedge Diffraction to Antenna Theory by : R. C. Rudduck
Download or read book Application of Wedge Diffraction to Antenna Theory written by R. C. Rudduck and published by . This book was released on 1966 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Aperture Antennas and Arrays by : Trevor S. Bird
Download or read book Fundamentals of Aperture Antennas and Arrays written by Trevor S. Bird and published by John Wiley & Sons. This book was released on 2016-01-19 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as an advanced text for courses in antennas, with a focus on the mature but vital background field of aperture antennas. The book is aimed at final year, MSc, PhD and Post-Doctoral students, as well as readers who are moving from academia into industry, beginning careers as wireless engineers, system designers, in R&D, or for practising engineers. It assumes the reader has undertaken an earlier course of study on Maxwell's equations, fields and waves. Some of these topics are summarised in the early few chapters in order to provide continuity and background for the remaining chapters. The aperture antennas covered include the main types of horns, reflectors and arrays as well as microstrip patches, reflectarrays and lenses. To provide more than a superficial treatment of arrays, the topic of mutual coupling is covered in greater detail than most similar books in the area. Also included is an introduction to arrays on non-planar surfaces, which is of importance for applications that involve curved surfaces such as in aerodynamics or for making aperture antennas unobtrusive. A chapter is included on some modern aperture antennas to illustrate design techniques beyond the most common types of aperture antennas described in the early chapters. This is to show where advances have recently been made and where they could be improved in the future. Also included are selected topics of a practical nature for aperture antennas, namely fabrication and measurement.
Book Synopsis Clarke ∗diffraction∗ Theory and Antennas (previous Ly Aperture Antenna Analysis) by : R. H. CLARKE
Download or read book Clarke ∗diffraction∗ Theory and Antennas (previous Ly Aperture Antenna Analysis) written by R. H. CLARKE and published by . This book was released on 1980-12-03 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antenna Handbook written by Y.T. Lo and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 2282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques based on the method of modal expansions, the Rayleigh-Stevenson expansion in inverse powers of the wavelength, and also the method of moments solution of integral equations are essentially restricted to the analysis of electromagnetic radiating structures which are small in terms of the wavelength. It therefore becomes necessary to employ approximations based on "high-frequency techniques" for performing an efficient analysis of electromagnetic radiating systems that are large in terms of the wavelength. One of the most versatile and useful high-frequency techniques is the geometrical theory of diffraction (GTD), which was developed around 1951 by J. B. Keller [1,2,3]. A class of diffracted rays are introduced systematically in the GTD via a generalization of the concepts of classical geometrical optics (GO). According to the GTD these diffracted rays exist in addition to the usual incident, reflected, and transmitted rays of GO. The diffracted rays in the GTD originate from certain "localized" regions on the surface of a radiating structure, such as at discontinuities in the geometrical and electrical properties of a surface, and at points of grazing incidence on a smooth convex surface as illustrated in Fig. 1. In particular, the diffracted rays can enter into the GO shadow as well as the lit regions. Consequently, the diffracted rays entirely account for the fields in the shadow region where the GO rays cannot exist.
Book Synopsis The Diffraction Theory of Large Aperture Spherical Reflector Antennas by : A. C. Schell
Download or read book The Diffraction Theory of Large Aperture Spherical Reflector Antennas written by A. C. Schell and published by . This book was released on 1963 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field along the axis of a spherical reflector is determined from the geometry of the system rather than from each term of the aberration taken separately. The procedure shows how the field distribution changes from the case of small aberration, where there is a well-defined focus, to the geometric optics limit. A spherical reflector becomes an efficient antenna when a set of feed elements is located along the axis to reduce the effects of spherical aberration. The number and position of these elements is dictated by the size and curvature of the reflector and the allowable distortion of the wavefront. (Author).
Download or read book Apertures written by R. C. Hansen and published by Academic Press. This book was released on 2014-05-10 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microwave Scanning Antennas, Volume I: Apertures is a comprehensive account of phased arrays, multiple beam arrays, time domain and synthetic apertures, and adaptive antennas. Advances in continuous apertures and near field theory are discussed. Low noise and monopulse apertures, optical scanners, and large radomes are also covered, along with radio astronomy instruments and associated theory. Comprised of five chapters, this volume begins with an overview of aperture theory as well as aperture distributions and near field theory. The second and third chapters deal with mechanically steered and electronically scanned antennas, including monopulse antennas and optical scanners. The fourth chapter is devoted to radio astronomy instruments and techniques and encompasses both apertures and arrays, together with radio telescopes and antennas. The final chapter describes large radomes that are primarily used with aperture antennas. This book is intended for engineers who must understand narrow beam or high resolution antennas more deeply than from the system interfaces alone, and for undergraduate and graduate students in electronics who wish to complement their study of electromagnetics with the quantitative details of hardware applications.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722090227 Total Pages :28 pages Book Rating :4.0/5 (92 download)
Book Synopsis Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffraction Technique by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffraction Technique written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-30 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined finite element method (FEM) and method of moments (MoM) technique is presented to analyze the radiation characteristics of a cavity-fed aperture in three dimensions. Generalized feed modeling has been done using the modal expansion of fields in the feed structure. Numerical results for some feeding structures such as a rectangular waveguide, circular waveguide, and coaxial line are presented. The method also uses the geometrical theory of diffraction (GTD) to predict the effect of a finite ground plane on radiation characteristics. Input admittance calculations for open radiating structures such as a rectangular waveguide, a circular waveguide, and a coaxial line are shown. Numerical data for a coaxial-fed cavity with finite ground plane are verified with experimental data. Reddy, C. J. and Deshpande, M. D. and Cockrell, C. R. and Beck, F. B. Langley Research Center RTOP 505-64-70-01...
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781729174234 Total Pages :30 pages Book Rating :4.1/5 (742 download)
Book Synopsis Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffracti by : National Aeronautics and Space Adm Nasa
Download or read book Analysis of Three-Dimensional-Cavity-Backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffracti written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-25 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combined finite element method (FEM) and method of moments (MoM) technique is presented to analyze the radiation characteristics of a cavity-fed aperture in three dimensions. Generalized feed modeling has been done using the modal expansion of fields in the feed structure. Numerical results for some feeding structures such as a rectangular waveguide, circular waveguide, and coaxial line are presented. The method also uses the geometrical theory of diffraction (GTD) to predict the effect of a finite ground plane on radiation characteristics. Input admittance calculations for open radiating structures such as a rectangular waveguide, a circular waveguide, and a coaxial line are shown. Numerical data for a coaxial-fed cavity with finite ground plane are verified with experimental data. Reddy, C. J. and Deshpande, M. D. and Cockrell, C. R. and Beck, F. B. Langley Research Center RTOP 505-64-70-01...
Book Synopsis Antenna Theory by : Constantine A. Balanis
Download or read book Antenna Theory written by Constantine A. Balanis and published by . This book was released on 1982-04-15 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Latest Resource for the Study of Antenna Theory! In a discipline that has experienced vast technological changes, this text offers the most recent look at all the necessary topics. Highlights include: * New coverage of microstrip antennas provides information essential to a wide variety of practical designs of rectangular and circular patches, including computer programs. * Applications of Fourier transform (spectral) method to antenna radiation. * Updated material on moment methods, radar cross section, mutual impedances, aperture and horn antennas, compact range designs, and antenna measurements. A New Emphasis on Design! Balanis features a tremendous increase in design procedures and equations. This presents a solid solution to the challenge of meeting real-life situations faced by engineers. Computer programs contained in the book-and accompanying software-have been developed to help engineers analyze, design, and visualize the radiation characteristics of antennas.
Book Synopsis Microwave Antennas by : A. Z. Fradin
Download or read book Microwave Antennas written by A. Z. Fradin and published by Elsevier. This book was released on 2017-09-21 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microwave Antennas provides a comprehensive discussion on the various areas of concerns in microwave antenna theory and design. The title also presents data from technical journals that cover the advances in the developments of microwave antenna technology. The text first discusses the classification, structure, and operating principles of microwave antennas, and then proceeds to tackling the fundamental problem of microwave antenna theory and methods for its solution. In Chapter III, the selection covers the solution of a number of mathematical problems of diffraction at openings in plane screens. The remaining chapters deal with the various types of antennas, such as horn, lens, slots, and helical. The book will be of great interest to students and practitioners of radio and telecommunications engineering.
Book Synopsis Analysis of Three-dimensional-cavity-backed Aperture Antennas Using a Combined Finite Element Method/method of Moments/geometric Theory of Diffraction Technique by : C. J. Reddy
Download or read book Analysis of Three-dimensional-cavity-backed Aperture Antennas Using a Combined Finite Element Method/method of Moments/geometric Theory of Diffraction Technique written by C. J. Reddy and published by . This book was released on 1995 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Note on Use of Slope Diffraction Coefficients for Aperture Antennas on Finite Ground Planes by : C. R. Cockrell
Download or read book Note on Use of Slope Diffraction Coefficients for Aperture Antennas on Finite Ground Planes written by C. R. Cockrell and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diffraction Theory and Antennas by : Richard Henry Clarke
Download or read book Diffraction Theory and Antennas written by Richard Henry Clarke and published by . This book was released on 1980 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
