RF Priming of a Long Pulse Relativistic Magnetron PDF Download

Author: William Michael White
Publisher:
ISBN:
Category :
Languages : en
Pages : 274

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Microwave/RF priming experiments have been performed on the UM relativistic magnetron. The high power RF priming source (40 kV, non-relativistic magnetron) was obtained on-loan from the Air Force Research Lab. Microwave power output from the AFRL priming magnetron was input into one arm of the three-waveguide extraction system on the relativistic magnetron. The UM/Titan A6 relativistic magnetron was driven by MELBA-C; the ceramic insulator yields 10-8 Torr scale vacuum for quasi-hard-tube conditions. Microwave priming experiments showed mode-beating effects at power levels and frequency detuning consistent with Adler's equation. Effects of microwave priming on start-oscillation time and microwave pulselength were also characterized. Major breakthroughs in this research were the discovery and demonstration of two new magnetron priming techniques: magnetic priming and cathode priming. Magnetic priming was patented by UM (US patent No. 6,872,929).

Author: Michael Cameron Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 478

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Author: Gregory S. Nusinovich
Publisher: John Wiley & Sons
ISBN: 0471683728
Category : Technology & Engineering
Languages : en
Pages : 885

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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.

Author: William Parker Ballard
Publisher:
ISBN:
Category : Cathodes
Languages : en
Pages : 328

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Category : Dissertations, Academic
Languages : en
Pages : 862

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Author: DIANE Publishing Company
Publisher: DIANE Publishing
ISBN: 9780941375962
Category :
Languages : en
Pages : 86

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Provides a survey of the progress in the field, an evaluation of the state of the art, and trends of future developments. Covers: klystrons; magnetrons; vircators, reflex-diodes; Cherenkov devices. Extensive bibliography.

Author:
Publisher: DIANE Publishing
ISBN: 1428918078
Category :
Languages : en
Pages : 88

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The introduction of directed energy weapons into twenty-first century naval forces has the potential to change naval tactics as fundamentally as the transition from sail to steam. Recent advances in directed energy technologies have made the development of both high-energy laser and high-power microwave weapons technically feasible. This study examines the potential adaptation of such weapons for the defense of naval forces. This study considers options for using directed energy systems on naval vessels in the context of the U.S. maritime strategy and emerging threats in international politics. The framework for this study is an integrated system of microwave devices, high-energy lasers, and surface-to-air missiles which are evaluated in terms of their ability to enhance anti-ship cruise missile defense, tactical air defense, and fast patrol boat defense. This study also examines collateral capabilities, such as non-lethal defensive measures and countersurveillance operations. The global proliferation of increasingly sophisticated weapons and the expanding demands placed on its ever-smaller navy require the United States to reassess its current approach to fleet operations. This study concludes that directed energy technology has made sufficient progress to warrant the development of sea-based weapons systems for deployment in the first two decades of the next century. For operational and technical reasons, a Nimitz class aircraft carrier may be the preferred platform for the initial implementation of directed energy weapons. If successful, the robust self-defense capability provided by directed energy weapons will permit a fundamental shift in carrier battle group operations from a massed, attrition oriented defense to a more dynamic, dispersed offense.

Author: Richard G. Carter
Publisher: Cambridge University Press
ISBN: 0521198623
Category : Technology & Engineering
Languages : en
Pages : 843

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Get up-to-speed on the theory, principles and design of vacuum electron devices.

Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 2304

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