Stable High Power Harmonic Gyro Amplifiers

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Stable High-Power Harmonic Gyro-Amplifiers

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Author :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (227 download)

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Download or read book Stable High-Power Harmonic Gyro-Amplifiers written by and published by . This book was released on 1994 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of our Tri-Service University Research Program in Vacuum Electronics has been on basic research issues associated with operating harmonic gyrotron devices as high-power, coherent millimeter-wave amplifiers. Substantial theoretical and experimental progress has been achieved. We introduced the marginal stability design (MSD) procedure(1) for achieving stability in high-performance gyro-TWT's. We also concluded the initial tests of the high power, second-armonic TE21 gyro-TWT amplifier which is based on the MSD procedure and the novel concept that harmonic operation is capable of significantly increasing the output power because the start-oscillation beam current is much higher for the relatively weak harmonic interaction. Indeed, the second-harmonic gyro-TWT amplifier's unprecedented output power of 207 kW exceeded the previous record-level of 120 kW, which was produced by a first-harmonic gyro-TWT. Our amplifier yielded an efficiency of 13%, a saturated gain of 16 dB with a bandwidth of 2% and was stable for zero rf input power. (MM).

Stable High Power Harmonic Gyro-Amplifier

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Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (227 download)

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Download or read book Stable High Power Harmonic Gyro-Amplifier written by and published by . This book was released on 1995 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our second harmonic smooth bore gyro TWT, which generated a record breaking 207 kW and was stable without rf input, was found to be in good agreement with our large signal simulation code for an axial velocity spread of 14% and therefore improvement is anticipated through optimization of the MIG electron gun. an analytical theory of slotted harmonic gyro TWT amplifiers, which can be used to evaluate stability, has been described in a paper submitted for publication to the IEEE Trans. on Plasma Science's Special Issue on High Power Microwave Generation. A new mode selective interaction circuit has been fabricated for the slotted gyro TWT to improve its stability by employment of the slicing technique successful employed in our second harmonic smooth bore gyro-TWT.

High Energy Density and High Power RF

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Author : David K. Abe
Publisher : Springer Science & Business Media
ISBN 13 : 9780735402980
Total Pages : 526 pages
Book Rating : 4.4/5 (29 download)

Book Synopsis High Energy Density and High Power RF by : David K. Abe

Download or read book High Energy Density and High Power RF written by David K. Abe and published by Springer Science & Business Media. This book was released on 2006-01-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the seventh in a series of international workshops on high-power and high-energy density microwave devices for accelerator, plasma physics, and defense applications. The scope of this workshop included accelerators for high energy physics, plasma heating and current drive in controlled thermonuclear fusion research, radar and directed energy/high power microwave systems, THz sources and technologies, and advanced 2D/3D computational tool development.

Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers

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Author : Chao-Hai Du
Publisher : Springer
ISBN 13 : 3642547281
Total Pages : 200 pages
Book Rating : 4.6/5 (425 download)

Book Synopsis Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers by : Chao-Hai Du

Download or read book Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers written by Chao-Hai Du and published by Springer. This book was released on 2014-05-29 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A gyrotron traveling-wave amplifier (gyro-TWT) with the high-power and broad-band capabilities is considered as a turn-on key for next generation high-resolution radar. The book presents the most advanced theory, methods and physics in a gyro-TWT. The most challenging problem of instability competition has been for the first time addressed in a focused and systematic way and reported via concise states and vivid pictures. The book is likely to meet the interest of researchers and engineers in radar and microwave technology, who would like to study the gyro-TWTs and to promote its application in millimeter-wave radars. Chao-Hai Du and Pu-Kun Liu are both professors at Peking University.

State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2015 (KIT Scientific Reports ; 7717)

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Author : Thumm, Manfred
Publisher : KIT Scientific Publishing
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4./5 ( download)

Book Synopsis State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2015 (KIT Scientific Reports ; 7717) by : Thumm, Manfred

Download or read book State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2015 (KIT Scientific Reports ; 7717) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2016-08-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

State-of-the-Art of High-Power Gyro-Devices - Update of Experimental Results 2023 (KIT Scientific Reports ; 7765)

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Author : Thumm, Manfred
Publisher : KIT Scientific Publishing
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4./5 ( download)

Book Synopsis State-of-the-Art of High-Power Gyro-Devices - Update of Experimental Results 2023 (KIT Scientific Reports ; 7765) by : Thumm, Manfred

Download or read book State-of-the-Art of High-Power Gyro-Devices - Update of Experimental Results 2023 (KIT Scientific Reports ; 7765) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2024-02-06 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an update of the experimental achievements published in the review “State- of-the-Art of High-Power Gyro-Devices and Free Electron Masers”, Journal of Infrared, Millimeter, and Terahertz Waves, 41, No. 1, pp 1-140 (2020) and in the KIT Scientific Report 7761 (2021), related to the development of gyro-devices (Tables 2-34). Emphasis is on high-power gyrotron oscillators for long-pulse or continuous wave (CW) operation and pulsed gyrotrons for any applications.

State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2016 (KIT Scientific Reports ; 7735)

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Author : Thumm, Manfred
Publisher : KIT Scientific Publishing
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4./5 ( download)

Book Synopsis State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2016 (KIT Scientific Reports ; 7735) by : Thumm, Manfred

Download or read book State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2016 (KIT Scientific Reports ; 7735) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2017-07-19 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021. (KIT Scientific Reports ; 7761)

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Author : Thumm, Manfred
Publisher : KIT Scientific Publishing
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4./5 ( download)

Book Synopsis State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021. (KIT Scientific Reports ; 7761) by : Thumm, Manfred

Download or read book State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021. (KIT Scientific Reports ; 7761) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2021-10-28 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an update of the experimental achievements published in the review “State- of-the-Art of High-Power Gyro-Devices and Free Electron Masers”, Journal of Infrared, Millime-ter, and Terahertz Waves, 41, No. 1, pp 1-140 (2020) related to the development of gyro-devices (Tables 2-34). Emphasis is on high-power gyrotron oscillators for long-pulse or continuous wave (CW) operation and pulsed gyrotrons for any applications.

State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2017 (KIT Scientific Reports ; 7750)

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Author : Thumm, Manfred
Publisher : KIT Scientific Publishing
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4./5 ( download)

Book Synopsis State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2017 (KIT Scientific Reports ; 7750) by : Thumm, Manfred

Download or read book State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2017 (KIT Scientific Reports ; 7750) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2018-06-04 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Theory, Design, and Operation of a High Power Second-harmonic Gyro-TWT Amplifier

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Author : Qinsong Wang
Publisher :
ISBN 13 :
Total Pages : 572 pages
Book Rating : 4.:/5 (329 download)

Book Synopsis Theory, Design, and Operation of a High Power Second-harmonic Gyro-TWT Amplifier by : Qinsong Wang

Download or read book Theory, Design, and Operation of a High Power Second-harmonic Gyro-TWT Amplifier written by Qinsong Wang and published by . This book was released on 1995 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 542 pages
Book Rating : 4.:/5 (319 download)

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 1995 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Development of a W-band TE01 Gyrotron Traveling-wave Amplifier (gyro-TWT) for Advanced Radar Applications

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Author : Hoyoung Song
Publisher :
ISBN 13 :
Total Pages : 532 pages
Book Rating : 4.:/5 (68 download)

Book Synopsis Development of a W-band TE01 Gyrotron Traveling-wave Amplifier (gyro-TWT) for Advanced Radar Applications by : Hoyoung Song

Download or read book Development of a W-band TE01 Gyrotron Traveling-wave Amplifier (gyro-TWT) for Advanced Radar Applications written by Hoyoung Song and published by . This book was released on 2004 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High Power Microwave Tubes

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Author : Vishal Kesari
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681747073
Total Pages : 101 pages
Book Rating : 4.6/5 (817 download)

Book Synopsis High Power Microwave Tubes by : Vishal Kesari

Download or read book High Power Microwave Tubes written by Vishal Kesari and published by Morgan & Claypool Publishers. This book was released on 2018-02-20 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 of the book begins with chapter 6, in which we have taken up conventional MWTs (such as TWTs, klystrons, including multi-cavity and multi-beam klystrons, klystron variants including reflex klystron, IOT, EIK, EIO and twystron, and crossed-field tubes, namely, magnetron, CFA and carcinotron). In chapter 7, we have taken up fast-wave tubes (such as gyrotron, gyro-BWO, gyro-klystron, gyro-TWT, CARM, SWCA, hybrid gyro-tubes and peniotron). In chapter 8, we discuss vacuum microelectronic tubes (such as klystrino module, THz gyrotron and clinotron BWO); plasma-assisted tubes (such as PWT, plasma-filled TWT, BWO, including PASOTRON, and gyrotron); and HPM (high power microwave) tubes (such as relativistic TWT, relativistic BWO, RELTRON (variant of relativistic klystron), relativistic magnetron, high power Cerenkov tubes including SWO, RDG or orotron, MWCG and MWDG, bremsstrahlung radiation type tube, namely, vircator, and M-type tube MILO). In Chapter 9, we provide handy information about the frequency and power ranges of common MWTs, although more such information is provided at relevant places in the rest of the book as and where necessary. Chapter 10 is an epilogue that sums up the authors' attempt to bring out the various aspects of the basics of and trends in high power MWTs.

CARM and Harmonic Gyro-amplifier Experiments at 17 GHz

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Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (682 download)

Book Synopsis CARM and Harmonic Gyro-amplifier Experiments at 17 GHz by :

Download or read book CARM and Harmonic Gyro-amplifier Experiments at 17 GHz written by and published by . This book was released on 1993 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyclotron resonance maser amplifiers are possible sources for applications such as electron cyclotron resonance heating of fusion plasmas and driving high-gradient rf linear accelerators. For accelerator drivers, amplifiers or phase locked-oscillators are required. A 17 GHz cyclotron autoresonance maser (CARM) amplifier experiment and a 17 GHz third harmonic gyro-amplifier experiment are presently underway at the MIT Plasma Fusion Center. Using the SRL/MIT SNOMAD II introduction accelerator to provide a 380 kV, 180 A, 30 ns flat top electron beam, the gyro-amplifier experiment has produced 5 MW of rf power with over 50 dB of gain at 17 GHz. The gyro-amplifier operates in the TE31 mode using a third harmonic interaction. Because of its high power output, the gyro-amplifier will be used as the rf source for a photocathode rf electron gun experiment also taking place at MIT. Preliminary gyro-amplifier results are presented, including measurement of rf power, gain versus interaction length, and the far-field pattern. A CARM experiment designed to operate in the TE11 mode is also discussed.

Modern Microwave and Millimeter-Wave Power Electronics

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

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.

Energy Research Abstracts

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Publisher :
ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dissertation Abstracts International

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ISBN 13 :
Total Pages : 830 pages
Book Rating : 4.F/5 ( download)

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Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: