Download or read book Noise Figure of Crossed field Amplifiers written by Joseph Francis Rando and published by . This book was released on 1961 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Klystrons Traveling Wave Tubes Magnetrons Crossed field Amplifiers and Gyrotrons written by A.S. Gilmour Jr. and published by Artech House. This book was released on 2011 with total page 883 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microwave tubes are vacuum electron devices used for the generation and amplification of radio frequencies in the microwave range. An established technology area, the use of tubes remains essential in the field today for high-power applications. The culmination of the authorOCOs 50 years of industry experience, this authoritative resource offers you a thorough understanding of the operations and major classes of microwave tubes.Minimizing the use of advanced mathematics, the book places emphasis on clear qualitative explanations of phenomena. This practical reference serves as an excellent introduction for newcomers to the field and offers established tube engineers a comprehensive refresher. Professionals find coverage of all major tube classifications, including klystrons, traveling wave tubes (TWTs), magnetrons, cross field amplifiers, and gyrotrons."

Download or read book Reduction of Noise in Crossed field Microwave Amplifiers written by Niladri Raju Mantena and published by . This book was released on 1966 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conditions for low-noise operation are established to be the following: (1) the use of a well-focused beam, (2) reduction of the diocotron gain of the gun and drift regions to a minimum possible value, (3) full exploitation of magnetic and space-change smoothing for maximum reduction of noise figure, (4) launching the beam very close to the circuit, (5) reducing the space-charge parameter S close to zero, (6) high power gain, and (7) minimizing the initial beam position fluctuations by reducing the cathode thickness. By combining optimum beam focusing, space-charge smoothing, and beam displacement, low noise figures of 10.5 db for the backward-wave amplifier and 18.4 db for the forward-wave amplifier have been obtained without using noise transducers. A better control of the above factors than was possible with the present experimental tube will result in still lower noise figures. With the noise transducing scheme added to the factors listed above, it should be possible to obtain extremely low noise figures as was done by Wadhwa and Van Duzer. (Author).

Download or read book Noise in Crossed field Guns written by Rangaiya Aswathanarayana Rao and published by . This book was released on 1961 with total page 120 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 1972 with total page 1038 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.

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crossed field Microwave Devices V3 written by G Mourier and published by Elsevier. This book was released on 2012-12-02 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crossed-field Microwave Devices, Volume I: Principal Elements of Crossed-Field Devices focuses on the developments, trends, and approaches in the study of crossed-field microwave devices. The selection first offers information on periodic structures and cathode gun and its static characteristics. Discussions focus on circuits for traveling wave crossed-field tubes; effect of tolerance on interdigital lines; mode spectrum of strapped type magnetron; and electron gun optics and associated static characteristics of injection systems. The text then takes a look at noise and space-charge modes, including preoscillation phenomena in space-charge clouds below the main oscillation threshold; cutoff characteristics of the static magnetron diode; magnetron diode oscillations; and noise in crossed-field electron beams. The manuscript then examines the interaction of beams and circuits, as well as small and large signal theory and experiment. The selection is a valuable reference for readers interested in the elements of crossed-field microwave devices.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967-03 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Proceedings written by and published by . This book was released on 1963 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microwave Tubes written by and published by . This book was released on 1963 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise in Crossed field Electron Beams written by Theodore Van Duzer and published by . This book was released on 1960 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Microwave Engineering written by David M. Pozar and published by John Wiley & Sons. This book was released on 2021 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 4th edition of this classic text provides a thorough coverage of RF and microwave engineering concepts, starting from fundamental principles of electrical engineering, with applications to microwave circuits and devices of practical importance. Coverage includes microwave network analysis, impedance matching, directional couplers and hybrids, microwave filters, ferrite devices, noise, nonlinear effects, and the design of microwave oscillators, amplifiers, and mixers. Material on microwave and RF systems includes wireless communications, radar, radiometry, and radiation hazards. A large number of examples and end-of-chapter problems test the reader's understanding of the material. The 4th edition includes new and updated material on systems, noise, active devices and circuits, power waves, transients, RF CMOS circuits, and more.

Download or read book Microwave and Millimeter Wave Vacuum Electron Devices Inductive Output Tubes Klystrons Traveling Wave Tubes Magnetrons Crossed Field Amplifiers and Gyrotrons written by A.S. Gilmour, Jr. and published by Artech House. This book was released on 2020-04-30 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an internationally recognized as an expert on the subject of microwave (MW) tubes, this book presents and describes the many types of microwave tubes, and despite competition from solid-state devices (those using GaN, SiC, et cetera), which continue to be used widely and find new applications in defense, communications, medical, and industrial drying. Helix traveling wave tubes (TWTs), as well as coupled cavity TWTs are covered. Klystrons, and how they work, are described, along with the physics behind it and examples of devices and their uses. Vacuum electron devices are explained in detail and examines the harsh environment that must exist in tubes if they are to operate properly. The secondary emission process and its role in the operation of crossed-field devices is also discussed. The design of collectors for linear-beam tubes, including power dissipation and power recovery, are explored. Discussions of important noise sources and techniques that can be used to minimize their effects are also included. Presented in full color, this book contains a balance of practical and theoretical material so that those new to microwave tubes as well as experienced microwave tube technicians, engineers, and managers can benefit from its use.

Download or read book Space aeronautics written by and published by . This book was released on 1965-07 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt: