Aperture Antennas And Diffraction Theory
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Author | : Edward V. Jull |
Publisher | : IET |
Total Pages | : 194 |
Release | : 1981 |
Genre | : Science |
ISBN | : 9780906048528 |
Download Aperture Antennas and Diffraction Theory Book in PDF, Epub and Kindle
Two alternative methods of aperture antenna analysis are described in this book.
Author | : Richard Henry Clarke |
Publisher | : |
Total Pages | : 300 |
Release | : 1980 |
Genre | : Technology & Engineering |
ISBN | : |
Download Diffraction Theory and Antennas Book in PDF, Epub and Kindle
Author | : C. J. Reddy |
Publisher | : |
Total Pages | : 32 |
Release | : 1995 |
Genre | : Antennas (Electronics) |
ISBN | : |
Download Analysis of Three-dimensional-cavity-backed Aperture Antennas Using a Combined Finite Element Method/Method of Moments/Geometrical Theory of Diffraction Technique Book in PDF, Epub and Kindle
Author | : Warren L. Stutzman |
Publisher | : Wiley Global Education |
Total Pages | : 846 |
Release | : 2012-10-16 |
Genre | : Technology & Engineering |
ISBN | : 1118213475 |
Download Antenna Theory and Design Book in PDF, Epub and Kindle
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.
Author | : R. C. Rudduck |
Publisher | : |
Total Pages | : 76 |
Release | : 1966 |
Genre | : Diffraction |
ISBN | : |
Download Application of Wedge Diffraction to Antenna Theory Book in PDF, Epub and Kindle
Author | : R. H. CLARKE |
Publisher | : |
Total Pages | : 292 |
Release | : 1980-12-03 |
Genre | : |
ISBN | : 9780853122470 |
Download Clarke ∗diffraction∗ Theory and Antennas (previous Ly Aperture Antenna Analysis) Book in PDF, Epub and Kindle
Author | : Trevor S. Bird |
Publisher | : John Wiley & Sons |
Total Pages | : 452 |
Release | : 2016-01-19 |
Genre | : Technology & Engineering |
ISBN | : 1118923561 |
Download Fundamentals of Aperture Antennas and Arrays Book in PDF, Epub and Kindle
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.
Author | : Y.T. Lo |
Publisher | : Springer Science & Business Media |
Total Pages | : 2282 |
Release | : 2013-06-29 |
Genre | : Technology & Engineering |
ISBN | : 146156459X |
Download Antenna Handbook Book in PDF, Epub and Kindle
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.
Author | : A. C. Schell |
Publisher | : |
Total Pages | : 8 |
Release | : 1963 |
Genre | : |
ISBN | : |
Download The Diffraction Theory of Large Aperture Spherical Reflector Antennas Book in PDF, Epub and Kindle
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).
Author | : R. C. Hansen |
Publisher | : Academic Press |
Total Pages | : 463 |
Release | : 2014-05-10 |
Genre | : Technology & Engineering |
ISBN | : 1483260631 |
Download Apertures Book in PDF, Epub and Kindle
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.