Download or read book Surface and Anomolous Waves on Phased Arrays of TEM Waveguides with Fences written by Robert J. Mailloux and published by . This book was released on 1971 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the behavior of an infinite array of parallel plane waveguides in a conducting ground plane with metallic fences perpendicular to the ground plane and spaced halfway between each pair of radiators. The study is mainly concerned with anomolous wave nulls and their relation to endfire surface-wave radiation, and, in addition, some data is presented to demonstrate the scan-matching properties of the fence geometry. An interesting new development in open periodic structure theory is reported and is shown to apply to both surface waves and anomolous waves. Certain restrictions on the phase distributions of the aperture fields and fence currents are revealed and studied in detail. In addition to these basic relationships, a numerical study of the scanning properties of waveguide-fence arrays is presented which has indicated that structures of this type can reduce impedance variation during scan and can be especially useful when it is desirable to scan very near to, or even slightly beyond, the point at which a grating lobe moves into real space. (Author).
Download or read book Surface and Anomolous Waves on Phased Arrays of TEM Waveguides with Fences written by Robert J. Mailloux and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the behavior of an infinite array of parallel plane waveguides in a conducting ground plane with metallic fences perpendicular to the ground plane and spaced halfway between each pair of radiators. The study is mainly concerned with anomolous wave nulls and their relation to endfire surface-wave radiation, and, in addition, some data is presented to demonstrate the scan-matching properties of the fence geometry. An interesting new development in open periodic structure theory is reported and is shown to apply to both surface waves and anomolous waves. Certain restrictions on the phase distributions of the aperture fields and fence currents are revealed and studied in detail. In addition to these basic relationships, a numerical study of the scanning properties of waveguide-fence arrays is presented which has indicated that structures of this type can reduce impedance variation during scan and can be especially useful when it is desirable to scan very near to, or even slightly beyond, the point at which a grating lobe moves into real space. (Author)
Download or read book Government Reports Announcements written by and published by . This book was released on 1972-04 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phased Array Antennas with Optimized Element Patterns written by Sergei P. Skobelev and published by Artech House. This book was released on 2011 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative resource provides you with a detailed description of ideal array element characteristics that help you estimate the quality of development of real-world phased array antennas. You find several approaches to optimum phased array design, allowing you to provide specified array gain in a specific region of scan, using a minimum number of expensive, controlled devices. Moreover, this practical book presents important numerical methods that you can use to model and optimize phased array structure to obtain the best array characteristics that the chosen structure can provide.From arrays with beam-forming networks, arrays of coupled dual-mode waveguides, and arrays with reactively loaded radiators, to waveguide arrays with protruding dielectric elements, and arrays with strip, disk, and wire structures, this comprehensive reference explains a wide range of essential topics to help you with work in this challenging area. The book is supported with over 165 illustrations and more than 566 equations.
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1971-06 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phased Array Antennas written by Arun K. Bhattacharyya and published by John Wiley & Sons. This book was released on 2006-03-10 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to the latest in phased array antenna analysis and design--the Floquet modal based approach This comprehensive book offers an extensive presentation of a new methodology for phased array antenna analysis based on Floquet modal expansion. Engineers, researchers, and advanced graduate students involved in phased array antenna technology will find this systematic presentation an invaluable reference. Elaborating from fundamental principles, the author presents an in-depth treatment of the Floquet modal based approach. Detailed derivations of theorems and concepts are provided, making Phased Array Antennas a self-contained work. Each chapter is followed by several practice problems. In addition, numerous design examples and guidelines will be found highly useful by those engaged in the practical application of this new approach to phased array structures. Broadly organized into three sections, Phased Array Antennas covers: The development of the Floquet modal based approach to the analysis of phased array antennas Application of the Floquet modal based approach to important phased array structures Shaped beam array synthesis, array beam forming networks, active phased array systems, and statistical analysis of phased arrays Incorporating the most recent developments in phased array technology, Phased Array Antennas is an essential resource for students of phased array theory, as well as research professionals and engineers engaged in the design and construction of phased array antennas.
Download or read book Bibliography with Abstracts of AFCRL Publications from 1 January to 31 March 1972 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1972 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography lists all AFCRL in-house reports, journal articles, and contractor reports issued from 1 January to 31 March 1972. Abstracts are included.
Download or read book Electronically Scanned Arrays written by Robert J. Mailloux and published by Springer Nature. This book was released on 2022-06-01 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning arrays present the radar or communications engineer with the ultimate in antenna flexibility. They also present a multitude of new opportunities and new challenges that need to be addressed. In order to describe the needs for scanned array development, this book begins with a brief discussion of the history that led to present array antennas. This text is a compact but comprehensive treatment of the scanned array, from the underlying basis for array pattern behavior to the engineering choices leading to successful design. The book describes the scanned array in terms of radiation from apertures and wire antennas and introduces the effects resulting directly from scanning, including beam broadening, impedance mismatch and gain reduction and pattern squint and those effects of array periodicity including grating and quantization lobes and array blindness. The text also presents the engineering tools for improving pattern control and array efficiency including lattice selection, subarrray technology and pattern synthesis. Equations and figurers quantify the phenomena being described and provide the reader with the tools to tradeoff various performance features. The discussions proceed beyond the introductory material and to the state of the art in modern array design. Contents: Basic Principles and Applications of Array Antennas / Element Coupling Effects in Array Antennas / Array Pattern Synthesis / Subarray Techniques for Limited Field of View and Wide Band Applications
Download or read book An Overlapped Sub array for Limited Scan Application written by Robert J. Mailloux and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes a new technique for producing an overlapped sub-array pattern by higher order mode coupling between nearest neighbor phased array elements. Theoretical and experimental results are compared, and practical circuits described for one plane of scan. The Appendix presents a circuit for scanning in two planes. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1972 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Optical Devices and Methods for Microwave millimeter wave and Frontier Applications written by Mario N. Armenise and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in these papers presented at the SPIE Annual Meeting include: laser systems and components; signal processing; analogies in component design; and analogies in devices and systems.
Download or read book Bibliography with Abstracts of AFCRL Publications from 1 April to 30 June 1971 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1971 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1972 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program and Digest written by and published by . This book was released on 1971 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PTGAP international symposium written by Institute of Electrical and Electronics Engineers. Professional Technical Group on Antennas and Propagation and published by . This book was released on 1971 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
