Download or read book Blind Spot Occurrence in Phased Arrays written by Robert J. Mailloux and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper reviews the present state of knowledge concerning radiation pattern nulls, with a view toward anticipating its occurrence and avoiding or minimizing the effects. In addition, data are presented that describe a new kind of blind spot wherein both the main beam and a grating lobe are simultaneously null, and some new data are included that show an array null can be removed by destroying the symmetry of the array periodic cell. (Author).
Download or read book Analysis of Finite size Phased Arrays of Circular Waveguide Elements written by M. C. Bailey and published by . This book was released on 1974 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A derivation is presented for the calculation of the interelement mutual coupling in a finite-size planar array of waveguide-fed apertures covered by a multilayered dielectric and/or plasma. The general mutual admittance expression is evaluated for circular apertures and the mutual coupling calculations are verified experimentally for two transverse electric (TE11) circular waveguide mode excited apertures. A parametric study of higher order mode aperture fields indicates that the only significant change in the circular aperture mutual coupling is due to the transverse magnetic (TM11) mode, which introduces an additional phase shift. Qualitative agreement between calculations for a 183-element array of circular apertures and an infinite array establishes the validity of the finite-array theoretical model.
Download or read book Adaptive Antennas and Phased Arrays for Radar and Communications written by Alan J. Fenn and published by Artech House. This book was released on 2007-12-01 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the author's extensive research at MIT Lincoln Laboratory, this authoritative resource offers an in-depth description of adaptive array design, emphasizing the RF characteristics, mutual coupling among elements, and field testing methods. It provides you with proven techniques for challenging projects involving radar, communication systems and antenna design. For the first time in any book, you find design guidance on specialized types of arrays, using monopole radiating elements, slotted cylinders and ultrawideband dipoles. Moreover, this unique book presents a focused near-field technique that quantifies the far-field performance of large aperture radar systems and communication systems. The book presents example prototype phased array antennas, including discussions on monopole phased arrays, finite and infinite array analyses, measurements for planar arrays of monopole elements. Further, you get a detailed explanation of focused near-field polarization characteristics of monopole arrays as related to adaptive array testing in the near field. From the fundamentals of adaptive antennas and degrees of freedom for multiple beam antennas and phased arrays… to a test bed monopole phased array and the planar near field testing technique… to arrays of horizontally polarized loop-fed slotted cylinder antennas and ultrawideband dipole arrays, this comprehensive book offers you invaluable, hands-on knowledge for your work in the field.
Download or read book Electromagnetic Scattering written by Piergiorgio Uslenghi and published by Elsevier. This book was released on 2012-12-02 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic Scattering is a collection of studies that aims to discuss methods, state of the art, applications, and future research in electromagnetic scattering. The book covers topics related to the subject, which includes low-frequency electromagnetic scattering; the uniform asymptomatic theory of electromagnetic edge diffraction; analyses of problems involving high frequency diffraction and imperfect half planes; and multiple scattering of waves by periodic and random distribution. Also covered in this book are topics such as theories of scattering from wire grid and mesh structures; the electromagnetic inverse problem; computational methods for transmission of waves; and developments in the use of complex singularities in the electromagnetic theory. Engineers and physicists who are interested in the study, developments, and applications of electromagnetic scattering will find the text informative and helpful.
Download or read book Air Force Research Review written by United States. Air Force. Systems Command and published by . This book was released on 1970 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Report written by United States. National Aeronautics and Space Administration and published by . This book was released on 1972 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1972 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992-06 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Review written by and published by . This book was released on 1970 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phased Array Antenna Handbook Third Edition written by Robert J. Mailloux and published by Artech House. This book was released on 2017-11-30 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely revised third edition of an Artech House classic, Phased Array Antenna Handbook, Second Edition, offers an up-to-date and comprehensive treatment of array antennas and systems. This edition provides a wealth of new material, including expanded coverage of phased array and multiple beam antennas. New modern machine learning techniques used for analysis are included. Additional material on wideband antennas and wideband coverage in array antennas are incorporated in this book, including new methods, devices, and technologies that have developed since the second edition. A detailed treatment of antenna system noise, sections on antenna pattern synthesis, developments in subarray technology, and in-depth coverage of array architecture and components are additional new features of this book. The book explores design elements that demonstrate how to size an array system with speed and confidence. Moreover, this resource provides expanded coverage of systems aspects of arrays for radar and communications. Supported with numerous equations and illustrations, this practical book helps evaluate basic antenna parameters such as gain, sidelobe levels, and noise. Readers learn how to compute antenna system noise, design subarray geometries for given bandwidth, scan and sidelobe constraints, and choose array illumination tapers for given sidelobe levels.
Download or read book Pri ami Ta Oberneni Zadachi Teori Elektromahnitnykh Ta Akustychnykh Khvyl written by and published by . This book was released on 2003 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra Wideband Communications written by Mohammad Abdul Matin and published by BoD – Books on Demand. This book was released on 2011-08-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores both the state-of-the-art and the latest achievements in UWB antennas and propagation. It has taken a theoretical and experimental approach to some extent, which is more useful to the reader. The book highlights the unique design issues which put the reader in good pace to be able to understand more advanced research.
Download or read book Phased Array Antennas written by Arun K. Bhattacharyya and published by John Wiley & Sons. This book was released on 2006-03-17 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to the latest in phased array antennaanalysis and design--the Floquet modal based approach This comprehensive book offers an extensive presentation of a newmethodology for phased array antenna analysis based on Floquetmodal expansion. Engineers, researchers, and advanced graduatestudents involved in phased array antenna technology will find thissystematic presentation an invaluable reference. Elaborating from fundamental principles, the author presents anin-depth treatment of the Floquet modal based approach. Detailedderivations of theorems and concepts are provided, making PhasedArray Antennas a self-contained work. Each chapter is followed byseveral practice problems. In addition, numerous design examplesand guidelines will be found highly useful by those engaged in thepractical application of this new approach to phased arraystructures. Broadly organized into three sections, Phased Array Antennascovers: * The development of the Floquet modal based approach to theanalysis of phased array antennas * Application of the Floquet modal based approach to importantphased array structures * Shaped beam array synthesis, array beam forming networks, activephased array systems, and statistical analysis of phasedarrays Incorporating the most recent developments in phased arraytechnology, Phased Array Antennas is an essential resource forstudents of phased array theory, as well as research professionalsand engineers engaged in the design and construction of phasedarray antennas.
Download or read book Bibliography with Abstracts of AFCRL Publications from 1 October to 31 December 1971 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1972 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of Wireless written by T. K. Sarkar and published by John Wiley & Sons. This book was released on 2006-01-30 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: Important new insights into how various components and systems evolved Premised on the idea that one cannot know a science without knowing its history, History of Wireless offers a lively new treatment that introduces previously unacknowledged pioneers and developments, setting a new standard for understanding the evolution of this important technology. Starting with the background-magnetism, electricity, light, and Maxwell's Electromagnetic Theory-this book offers new insights into the initial theory and experimental exploration of wireless. In addition to the well-known contributions of Maxwell, Hertz, and Marconi, it examines work done by Heaviside, Tesla, and passionate amateurs such as the Kentucky melon farmer Nathan Stubblefield and the unsung hero Antonio Meucci. Looking at the story from mathematical, physics, technical, and other perspectives, the clearly written text describes the development of wireless within a vivid scientific milieu. History of Wireless also goes into other key areas, including: The work of J. C. Bose and J. A. Fleming German, Japanese, and Soviet contributions to physics and applications of electromagnetic oscillations and waves Wireless telegraphic and telephonic development and attempts to achieve transatlantic wireless communications Wireless telegraphy in South Africa in the early twentieth century Antenna development in Japan: past and present Soviet quasi-optics at near-mm and sub-mm wavelengths The evolution of electromagnetic waveguides The history of phased array antennas Augmenting the typical, Marconi-centered approach, History of Wireless fills in the conventionally accepted story with attention to more specific, less-known discoveries and individuals, and challenges traditional assumptions about the origins and growth of wireless. This allows for a more comprehensive understanding of how various components and systems evolved. Written in a clear tone with a broad scientific audience in mind, this exciting and thorough treatment is sure to become a classic in the field.
Download or read book The Lincoln Laboratory Journal written by and published by . This book was released on 2000 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Metric Wave Radar written by Jianqi Wu and published by Springer. This book was released on 2019-07-12 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically describes advanced metric wave radar and its practical applications, offering a comprehensive introduction to the engineering design methods from the perspectives of system design, antenna/feed and transmit/receive subsystems, as well as mechanical structure design. Focusing on the height-finding method, it describes in detail how the super-resolution technique can be used to solve the problem of low-angle height finding in metric wave radar. It also discusses the anti-jamming method for the unique jamming environment. Further, it presents narrowband target recognition methods to overcome the limitations of narrow absolute bandwidth in metric wave radar and to further explore the technique’s potential. Cooperative detection for metric wave radar netting is also addressed, and the main experimental results are included. The book offers a valuable resource for professional engineers, researchers and teachers, as well as graduate students engaged in radar system engineering, electronic engineering, and signal processing.
