Three-Dimensional Simulation of Traveling-Wave Tube Cold-Test Characteristics Using CST Microwave Studio PDF Download
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721600687
Category :
Languages : en
Pages : 26
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Book Description
The electromagnetic field simulation software package CST MICROWAVE STUDIO (MWS) was used to compute the cold-test parameters - frequency-phase dispersion, on-axis impedance, and attenuation - for a traveling-wave tube (TWT) slow-wave circuit. The results were compared to experimental data, as well as to results from MAFIA, another three-dimensional simulation code from CST currently used at the NASA Glenn Research Center (GRC). The strong agreement between cold-test parameters simulated with MWS and those measured experimentally demonstrates the potential of this code to reduce the time and cost of TWT development. Chevalier, Christine T. and Herrmann, Kimberly A. and Kory, Carol L. and Wilson, Jeffrey D. and Cross, Andrew W. and Santana , Samuel Glenn Research Center NASA/TM-2003-212486, NAS 1.15:212486, E-14028
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721600687
Category :
Languages : en
Pages : 26
Get Book Here
Book Description
The electromagnetic field simulation software package CST MICROWAVE STUDIO (MWS) was used to compute the cold-test parameters - frequency-phase dispersion, on-axis impedance, and attenuation - for a traveling-wave tube (TWT) slow-wave circuit. The results were compared to experimental data, as well as to results from MAFIA, another three-dimensional simulation code from CST currently used at the NASA Glenn Research Center (GRC). The strong agreement between cold-test parameters simulated with MWS and those measured experimentally demonstrates the potential of this code to reduce the time and cost of TWT development. Chevalier, Christine T. and Herrmann, Kimberly A. and Kory, Carol L. and Wilson, Jeffrey D. and Cross, Andrew W. and Santana , Samuel Glenn Research Center NASA/TM-2003-212486, NAS 1.15:212486, E-14028
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722905026
Category :
Languages : en
Pages : 30
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Book Description
The three-dimensional simulation code MAFIA was used to compute the cold-test parameters - frequency-phase dispersion, beam on-axis interaction impedance, and attenuation - for two types of traveling-wave tube (TWT) slow-wave circuits. The potential for this electromagnetic computer modeling code to reduce the time and cost of TWT development is demonstrated by the high degree of accuracy achieved in calculating these parameters. Generalized input files were developed for ferruled coupled-cavity and TunneLadder slow-wave circuits. These files make it easy to model circuits of arbitrary dimensions. The utility of these files was tested by applying each to a specific TWT slow-wave circuit and comparing the results with experimental data. Excellent agreement was obtained. Kory, Carol L. and Wilson, Jeffrey D. Glenn Research Center NAS3-25776...
Author: Latha Christie
Publisher: Wipf and Stock Publishers
ISBN: 1532677510
Category : Psychology
Languages : en
Pages : 221
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Book Description
Dr Christie’s book deals with the subject of marital abuse in a different and almost interactive way with readers. The mandate of this book is to help battered wives in unbearable abusive marriages to put a halt to their descent into the bottomless abyss that life has drawn them into; and realize there is a way up, out and onward, thus empowering them. Above all, the book provides the path to healing after abuse and taking charge of one’s future.
Author: David B. Davidson
Publisher: Cambridge University Press
ISBN: 9780521838597
Category : Juvenile Nonfiction
Languages : en
Pages : 450
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Book Description
Publisher Description
Author: George A. Haas
Publisher:
ISBN:
Category : Thermionic emission
Languages : en
Pages : 38
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Book Description
A survey of the emission characteristics of modern thermionic electron sources is presented. In addition to a discussion of recent advances among the more commonly used emitters such as oxide cathodes, thoriated cathodes, and metal c thodes, a tabulation of the thermionic properties of over one hundred various new matrix and refractory-coated cathodes is given. (Author).
Author: John L. Volakis
Publisher: IET
ISBN: 1891121936
Category : Mathematics
Languages : en
Pages : 407
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Book Description
This text/reference is a detailed look at the development and use of integral equation methods for electromagnetic analysis, specifically for antennas and radar scattering. Developers and practitioners will appreciate the broad-based approach to understanding and utilizing integral equation methods and the unique coverage of historical developments that led to the current state-of-the-art. In contrast to existing books, Integral Equation Methods for Electromagnetics lays the groundwork in the initial chapters so students and basic users can solve simple problems and work their way up to the most advanced and current solutions.
Author: William A. Imbriale
Publisher: John Wiley & Sons
ISBN: 0470052775
Category : Technology & Engineering
Languages : en
Pages : 594
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Book Description
JPL spacecraft antennas-from the first Explorer satellite in 1958 to current R & D Spaceborne Antennas for Planetary Exploration covers the development of Jet Propulsion Laboratory (JPL) spacecraft antennas, beginning with the first Explorer satellite in 1958 through current research and development activities aimed at future missions. Readers follow the evolution of all the new designs and technological innovations that were developed to meet the growing demands of deep space exploration. The book focuses on the radio frequency design and performance of antennas, but covers environmental and mechanical considerations as well. There is additionally a thorough treatment of all the analytical and measurement techniques used in design and performance assessment. Each chapter is written by one or more leading experts in the field of antenna technology. The presentation of the history and technology of spaceborne antennas is aided by several features: * Photographs and drawings of JPL spacecraft * Illustrations to help readers visualize concepts and designs * Tables highlighting and comparing the performance of the antennas * Bibliographies at the end of each chapter leading to a variety of primary and secondary source material This book complements Large Antennas of the Deep Space Network (Wiley 2002), which surveys the ground antennas covered in support of spacecraft. Together, these two books completely cover all JPL antenna technology, in keeping with the JPL Deep Space Communications and Navigation Series mission to capture and present the many innovations in deep space telecommunications over the past decades. This book is a fascinating and informative read for all individuals working in or interested in deep space telecommunications.
Author: Ricardo Marqués
Publisher: John Wiley & Sons
ISBN: 1118211561
Category : Technology & Engineering
Languages : en
Pages : 274
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Book Description
The first general textbook to offer a complete overview of metamaterial theory and its microwave applications Metamaterials with Negative Parameters represents the only unified treatment of metamaterials available in one convenient book. Devoted mainly to metamaterials that can be characterized by a negative effective permittivity and/or permeability, the book includes a wide overview of the most important topics, scientific fundamentals, and technical applications of metamaterials. Chapter coverage includes: the electrodynamics of left-handed media, synthesis of bulk metamaterials, synthesis of metamaterials in planar technology, microwave applications of metamaterial concepts, and advanced and related topics, including SRR- and CSRR-based admittance surfaces, magneto- and electro-inductive waves, and sub-diffraction imaging devices. A list of problems and references is included at the end of each chapter, and a bibliography offers a complete, up-to-daterepresentation of the current state of the art in metamaterials. Geared toward students and professionals alike, Metamaterials with Negative Parameters is an ideal textbook for postgraduate courses and also serves as a valuable introductory reference for scientists and RF/microwave engineers.
Author: Machavaram V. Kartikeyan
Publisher: Springer Science & Business Media
ISBN: 3662076373
Category : Technology & Engineering
Languages : en
Pages : 234
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Book Description
Drawing on the author's wide experience, this book gives a comprehensive review of the state of the art in gyrotron technology, covering the theory, design and applications. The book includes an extensive references list which provides an excellent guide to the related literature.
