Analytical and Computer Design of Array Antennas and Analysis and Synthesis of Elctromagnetic Scattering Systems PDF Download
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Author: Bradley J. Strait
Publisher:
ISBN:
Category : Antenna arrays
Languages : en
Pages : 40
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Book Description
Author: Bradley J. Strait
Publisher:
ISBN:
Category : Antenna arrays
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Bibliographical literature
Languages : en
Pages : 248
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Book Description
Author: Ahmed H. Abdelrahman
Publisher: Morgan & Claypool Publishers
ISBN: 1627057064
Category : Technology & Engineering
Languages : en
Pages : 177
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Book Description
In recent years, transmitarray antennas have attracted growing interest with many antenna researchers. Transmitarrays combines both optical and antenna array theory, leading to a low profile design with high gain, high radiation efficiency, and versatile radiation performance for many wireless communication systems. In this book, comprehensive analysis, new methodologies, and novel designs of transmitarray antennas are presented. Detailed analysis for the design of planar space-fed array antennas is presented. The basics of aperture field distribution and the analysis of the array elements are described. The radiation performances (directivity and gain) are discussed using array theory approach, and the impacts of element phase errors are demonstrated. The performance of transmitarray design using multilayer frequency selective surfaces (M-FSS) approach is carefully studied, and the transmission phase limit which are generally independent from the selection of a specific element shape is revealed. The maximum transmission phase range is determined based on the number of layers, substrate permittivity, and the separations between layers. In order to reduce the transmitarray design complexity and cost, three different methods have been investigated. As a result, one design is performed using quad-layer cross-slot elements with no dielectric material and another using triple-layer spiral dipole elements. Both designs were fabricated and tested at X-Band for deep space communications. Furthermore, the radiation pattern characteristics were studied under different feed polarization conditions and oblique angles of incident field from the feed. New design methodologies are proposed to improve the bandwidth of transmitarray antennas through the control of the transmission phase range of the elements. These design techniques are validated through the fabrication and testing of two quad-layer transmitarray antennas at Ku-band. A single-feed quad-beam transmitarray antenna with 50 degrees elevation separation between the beams is investigated, designed, fabricated, and tested at Ku-band. In summary, various challenges in the analysis and design of transmitarray antennas are addressed in this book. New methodologies to improve the bandwidth of transmitarray antennas have been demonstrated. Several prototypes have been fabricated and tested, demonstrating the desirable features and potential new applications of transmitarray antennas.
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 200
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1252
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Book Description
Author: Lars Josefsson
Publisher: John Wiley & Sons
ISBN: 0471780111
Category : Technology & Engineering
Languages : en
Pages : 512
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Book Description
This is the first comprehensive treatment of conformal antenna arrays from an engineering perspective. While providing a thorough foundation in theory, the authors of this publication provide a wealth of hands-on instruction for practical analysis and design of conformal antenna arrays. Thus, you get the knowledge you need, alongside the practical know-how to design antennas that are integrated into such structures aircrafts or skyscrapers.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 812
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Book Description
Author: Bell Telephone Laboratories. Technical Information Libraries
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 332
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 974
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Book Description
