Nonlinear Multi Signal Traveling Wave Tube Theory

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Nonlinear Multi-Signal Traveling Wave Tube Theory

Author : Sven Wallander
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (114 download)

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Book Synopsis Nonlinear Multi-Signal Traveling Wave Tube Theory by : Sven Wallander

Download or read book Nonlinear Multi-Signal Traveling Wave Tube Theory written by Sven Wallander and published by . This book was released on 1969 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report gives an analysis of the nonlinearities arising in a TWT with N input signals. The signal frequencies are assumed to be confined within a narrow frequency band. The sum of the input signals is then equivalent to a single signal with a slow modulation of the amplitude and the phase and the multi-signal nonlinearities can be predicted from the single-signal nonlinearities. These have been theoretically calculated in an earlier paper. Fifth order power series expansions of the single-signal nonlinearities are used. Minimum amplitude nonlinearities are obtained for a beam voltage higher than that giving maximum small signal gain and minimum phase shift nonlinearities are obtained for a beam voltage lower than that. The power of the third and fifth order modulation products is minimum for a beam voltage between that for maximum small signal gain and that for minimum amplitude nonlinearities. The 'self-distortion', i.e. the compression and the AM-to-PM conversion of one of the signals, is strongly influenced by the total power carried by the other signals. The cross-distortion quantities are generally about twice as large as the self-distortion quantities. (Author).

Investigation of Large-signal Klystron and Traveling-wave Devices

Author :
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Investigation of Large-signal Klystron and Traveling-wave Devices by :

Download or read book Investigation of Large-signal Klystron and Traveling-wave Devices written by and published by . This book was released on 1965 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A general nonlinear multi-dimensional interaction theory is employed to analyze Brillouin focused beams in klystrons and traveling-wave amplifiers. Harmonic currents and beam spread are found for a number of different situations. Closed-form solutions are being sought for the nonlinear equations. Beam stability in the presence of r-f and velocity distribution effects on the start-oscillation conditions of BWO's are two specific problems where these solutions are to be applied. Experimental programs to check these analyses are described. An appropriate taper on a ring-and-bar circuit for obtaining phase-focused operation is presented. Progress on the magnetron injection gun computer program is described. The trajectory starting problem appears to be solved, while further work on establishing the proper current density from the cathode is indicated. Provisions in the relativistic electron beam computer program for self-induced effects are also described. The status of the UHF helix-magnetron injection gun device is summarized. Performance data of the gun in a beam analyzer is presented. (Author).

Nonlinear Traveling Wave Tube Analysis with Two Signal Frequencies

Author : Sven Wallander
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (185 download)

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Book Synopsis Nonlinear Traveling Wave Tube Analysis with Two Signal Frequencies by : Sven Wallander

Download or read book Nonlinear Traveling Wave Tube Analysis with Two Signal Frequencies written by Sven Wallander and published by . This book was released on 1966 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mutual nonlinear distortion of two simultaneous signals in a TWT is theoretically investigated. It is shown that minimum phase distortion occurs at a low beam voltage while minimum amplitude distortion occurs at a high beam voltage. The mutual distortion dominated over the self distortion. (Author).

Nonlinear Distortion and Suppression in Traveling Wave Tubes

Author : John G. Wöhlbier
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Nonlinear Distortion and Suppression in Traveling Wave Tubes by : John G. Wöhlbier

Download or read book Nonlinear Distortion and Suppression in Traveling Wave Tubes written by John G. Wöhlbier and published by . This book was released on 2003 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Intermodulation Effects in Space-qualifield-type Traveling-wave Tubes

Author : W. M. Welch
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (2 download)

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Book Synopsis Intermodulation Effects in Space-qualifield-type Traveling-wave Tubes by : W. M. Welch

Download or read book Intermodulation Effects in Space-qualifield-type Traveling-wave Tubes written by W. M. Welch and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characteristics of space-qualified traveling-wave tubes are summarized. The nonlinear behavior of these tubes is outlined, and the results of investigations are given. Recent advances which will influence satellite communications systems are discussed

A Large-Signal Analysis Program for Helix Traveling-Wave Tubes

Author : Theresa A. Brunasso
Publisher :
ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis A Large-Signal Analysis Program for Helix Traveling-Wave Tubes by : Theresa A. Brunasso

Download or read book A Large-Signal Analysis Program for Helix Traveling-Wave Tubes written by Theresa A. Brunasso and published by . This book was released on 1987 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-dimensional large-signal analysis computer code for Helix traveling-wave tubes was developed. The program is based on the theory developed by J.E. Rowe and M.K. Scherba. The program was written in FORTRAN 77 and implemented on an HP-1000 computer at Teledyne MEC in Palo Alto CA. The program is well documented and can accommodate attenuators, severs, velocity changes, linear velocity tapers, and multiple input signals. Two Teledyne MEC tubes were simulated with the program and the results were in very good agreement with experimental data. Large-signal analysis programs are widely used by the microwave tube community to predict the performance of helix traveling-wave tubes. These nonlinear programs allow an engineer to optimize a tube design without building several prototype tubes. Unfortunately, currently available programs are complex and poorly documented. The purpose of this project is to provide a structured, well documented large-signal analysis program to the scientific and industrial community.

Large Signal Theory of the Traveling-wave Tube (including the Effects of Loss, Space Charge, and Finite "C")

Download Large Signal Theory of the Traveling-wave Tube (including the Effects of Loss, Space Charge, and Finite

Author : Howard Charles Poulter
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Large Signal Theory of the Traveling-wave Tube (including the Effects of Loss, Space Charge, and Finite "C") by : Howard Charles Poulter

Download or read book Large Signal Theory of the Traveling-wave Tube (including the Effects of Loss, Space Charge, and Finite "C") written by Howard Charles Poulter and published by . This book was released on 1954 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microwave and RF Vacuum Electronic Power Sources

Author : Richard G. Carter
Publisher : Cambridge University Press
ISBN 13 : 0521198623
Total Pages : 843 pages
Book Rating : 4.5/5 (211 download)

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Book Synopsis Microwave and RF Vacuum Electronic Power Sources by : Richard G. Carter

Download or read book Microwave and RF Vacuum Electronic Power Sources written by Richard G. Carter and published by Cambridge University Press. This book was released on 2018-04-12 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get up-to-speed on the theory, principles and design of vacuum electron devices.

Investigation of Large-signal Traveling-wave Tubes

Author : G. T. Konrad
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Investigation of Large-signal Traveling-wave Tubes by : G. T. Konrad

Download or read book Investigation of Large-signal Traveling-wave Tubes written by G. T. Konrad and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research was continued on a study of large signal traveling-wave tubes. Extensions on the two-dimensional large-signal analysis for klystrons and traveling-wave tubes are presented. Space-charge effects and the effects of stream subdivisions and the number of charge groups chosen are shown in a number of graphs. The work on the nonlinear theory of multistream microwave devices by a density function method is summarized. An improved method of handling the coupling between positive and negative velocity regions was worked out. Experimental test results on several phase-focused tubes are presented. Efficiency enhancements obtained by this method as well as a simple depressed potential collector are described. The test results obtained on the ring-and-bar tube before it had to be rebuilt are also listed. Several additional minor changes made on the solid beam digital computer program are described. Futhermore the status of the program for solution of magnetron injection guns is discussed. (Author).

An Analytic Theory Of Multi-stream Electron Beams In Traveling Wave Tubes

Author : Alexander Figotin
Publisher : World Scientific
ISBN 13 : 9811209219
Total Pages : 499 pages
Book Rating : 4.8/5 (112 download)

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Book Synopsis An Analytic Theory Of Multi-stream Electron Beams In Traveling Wave Tubes by : Alexander Figotin

Download or read book An Analytic Theory Of Multi-stream Electron Beams In Traveling Wave Tubes written by Alexander Figotin and published by World Scientific. This book was released on 2020-10-29 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Traveling Wave Tubes (TWT) is a powerful vacuum electronic device used to amplify radio-frequency (RF) signals as well as numerous applications such as radar, television and telephone satellite communications. This monograph is devoted to the author's original theoretical developments in the theory of a traveling wave tube (TWT).Most of the monograph is the author's original work on an analytical theory of TWTs. It is a constructive Lagrangian field theory of TWT in which the electron beam (e-beam) is represented by one-dimensional multi-stream electron flow and the guiding slow-wave structure is represented by possibly non-uniform multi-transmission line (MTL). The proposed analytic theory accounts for a number of electron plasma phenomena including space-charge effects such as electron-to-electron repulsion (debunching), convective instabilities, wave-particle interaction, amplifying waves and more. It allows, in particular, to (i) identify origins of the wave-particle interaction and the system convective instability (exponential growth); (ii) evaluate the energy transfer rate from the e-beam to the electromagnetic radiation; (iii) identify instability modal branches which under condition of sufficiently strong coupling between the e-beam and the MTL can cover ideally all frequencies.

On the Non-linear Theory of the Plane Traveling Wave Tube

Author : Sven Olving
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (185 download)

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Book Synopsis On the Non-linear Theory of the Plane Traveling Wave Tube by : Sven Olving

Download or read book On the Non-linear Theory of the Plane Traveling Wave Tube written by Sven Olving and published by . This book was released on 1963 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1460 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Modern Microwave and Millimeter-Wave Power Electronics

Author : Gregory S. Nusinovich
Publisher : John Wiley & Sons
ISBN 13 : 0471683728
Total Pages : 885 pages
Book Rating : 4.4/5 (716 download)

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Book Synopsis Modern Microwave and Millimeter-Wave Power Electronics by : Gregory S. Nusinovich

Download or read book Modern Microwave and Millimeter-Wave Power Electronics written by Gregory S. Nusinovich and published by John Wiley & Sons. This book was released on 2005-04-19 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study of microwave vacuum electronic devices and their current and future applications While both vacuum and solid-state electronics continue to evolve and provide unique solutions, emerging commercial and military applications that call for higher power and higher frequencies to accommodate massive volumes of transmitted data are the natural domain of vacuum electronics technology. Modern Microwave and Millimeter-Wave Power Electronics provides systems designers, engineers, and researchers-especially those with primarily solid-state training-with a thoroughly up-to-date survey of the rich field of microwave vacuum electronic device (MVED) technology. This book familiarizes the R&D and academic communities with the capabilities and limitations of MVED and highlights the exciting scientific breakthroughs of the past decade that are dramatically increasing the compactness, efficiency, cost-effectiveness, and reliability of this entire class of devices. This comprehensive text explores a wide range of topics: Traveling-wave tubes, which form the backbone of satellite and airborne communications, as well as of military electronic countermeasures systems Microfabricated MVEDs and advanced electron beam sources Klystrons, gyro-amplifiers, and crossed-field devices "Virtual prototyping" of MVEDs via advanced 3-D computational models High-Power Microwave (HPM) sources Next-generation microwave structures and circuits How to achieve linear amplification Advanced materials technologies for MVEDs A Web site appendix providing a step-by-step walk-through of a typical MVED design process Concluding with an in-depth examination of emerging applications and future possibilities for MVEDs, Modern Microwave and Millimeter-Wave Power Electronics ensures that systems designers and engineers understand and utilize the significant potential of this mature, yet continually developing technology. SPECIAL NOTE: All of the editors' royalties realized from the sale of this book will fund the future research and publication activities of graduate students in the vacuum electronics field.

Research Report - Research Laboratory of Electronics and Onsala Space Observatory

Author : Chalmers tekniska högskola. Research Laboratory of Electronics
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Research Report - Research Laboratory of Electronics and Onsala Space Observatory by : Chalmers tekniska högskola. Research Laboratory of Electronics

Download or read book Research Report - Research Laboratory of Electronics and Onsala Space Observatory written by Chalmers tekniska högskola. Research Laboratory of Electronics and published by . This book was released on 1975 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Large Signal Computer Analysis of Distortion in Traveling Wave Tubes

Author : Sven Wallander
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Large Signal Computer Analysis of Distortion in Traveling Wave Tubes by : Sven Wallander

Download or read book Large Signal Computer Analysis of Distortion in Traveling Wave Tubes written by Sven Wallander and published by . This book was released on 1969 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present paper the signal distortion (compression and AM-to-PM conversion) in the large signal region, including the saturation range, is studied by means of computer experiments. The disc model of the confined electron beam is used. The calculations are based on a recent analytical field theory of the small and medium signal distortion in TWTs. The method of the calculations is described in Appendices A, B and C. Nonlinear analytic theories, describing signal distortion, have been developed. These theories are restricted to low and medium signal levels. Computer experiments can be performed at any signal level and have been used to study the maximum output power from TWTs. (Author).

U.S. Government Research & Development Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis U.S. Government Research & Development Reports by :

Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1970 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reference Data for Engineers

Author : Mac E. Van Valkenburg
Publisher : Newnes
ISBN 13 : 9780750672917
Total Pages : 1696 pages
Book Rating : 4.6/5 (729 download)

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Book Synopsis Reference Data for Engineers by : Mac E. Van Valkenburg

Download or read book Reference Data for Engineers written by Mac E. Van Valkenburg and published by Newnes. This book was released on 2001-09-26 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard handbook for engineers covers the fundamentals, theory and applications of radio, electronics, computers, and communications equipment. It provides information on essential, need-to-know topics without heavy emphasis on complicated mathematics. It is a "must-have" for every engineer who requires electrical, electronics, and communications data. Featured in this updated version is coverage on intellectual property and patents, probability and design, antennas, power electronics, rectifiers, power supplies, and properties of materials. Useful information on units, constants and conversion factors, active filter design, antennas, integrated circuits, surface acoustic wave design, and digital signal processing is also included. This work also offers new knowledge in the fields of satellite technology, space communication, microwave science, telecommunication, global positioning systems, frequency data, and radar.