Results 61 to 70 of about 204 (86)

Design and microfabrication of 220GHz clinotron HF structure

IVEC 2012, 2012
The design and simulation of 220GHz clinotron HF structure have been carried several years ago[1]. This paper describes the status of the project, and the progress of manufacture and assembly.
Hanyan Li, Dapeng Ren, Jinjun Feng
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Sub-THz CW clinotrons with multi-stage gratings

2015 International Young Scientists Forum on Applied Physics (YSF), 2015
The development of sub-THz CW clinotrons with improved operational parameters is discussed in this paper. The application of multistage gratings is proposed as a way of the high-frequency losses reduction at the sub-THz range and enhancement of the beam-particle interaction efficiency.
Yu. S. Kovshov, S. A. Kishko, S. S. Ponomarenko, A. N. Kuleshov   +3 more
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Numerical and experimental investigation of 0.1 THz clinotron

2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves, 2012
A 0.1 THz 10 W clinotron is numerically and experimentally investigated for compact high-power terahertz radiation source. The output characteristics of the clinotron with the inclined sheet electron beam are examined by using the 3D particle-in-cell simulation code MAGIC and are compared with the measurements.
null Jung-Il Kim, null Seok-Gy Jeon, null Geun-Ju Kim, null Jaehong Kim, Igor V. Lopatin, Mikhail V. Mil'cho, Anatoly S. Tishchenko   +6 more
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Development of compact CW clinotrons for DNP-NMR spectroscopy

2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2016
Numerical simulations of the electromagnetic systems for both 130 GHz and 263 GHz CW clinotrons have been performed. Experimental results of the 130 GHz CW clinotron hot-testing are presented. Potentials of significant output power magnification and extension of operating frequency range in clinotrons has been shown by increasing the electron beam ...
S. S. Ponomarenko, Y. S. Kovshov, S. A. Kishko, Y. S. Novikova-Korotun, E. M. Khutoryan, A. N. Kuleshov   +5 more
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Clinotrons as powerful sources of terahertz radiation

2009 International Workshop Terahertz and Mid Infrared Radiation: Basic Research and Practical Applications, 2009
A series of clinotron tubes and clinotron based oscillators, which effectively operate throughout millimeter and sub-millimeter wavelength bands, have been developed at the Institute of Radio Astronomy. In this paper, the design and characteristics of these devices are discussed.
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Self-modulation of the output signal in clinotron

Journal of Communications Technology and Electronics, 2014
It is demonstrated that the self-modulation of the output signal in clinotron results from a delayed response of the distributed system of clinotron to the action of nonlinearity in the interaction of layers of a thick electron beam and high-frequency field.
Yu. G. Gamayunov, E. V. Patrusheva, A. V. Tolstikov   +2 more
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Mode analysis and design of 0.3-THz Clinotron

Chinese Physics B, 2016
To develop a high-power continuous-wave terahertz source, a Clinotron operating at 0.3 THz is investigated. Based on the analyses of field distribution and coupling impedance, the dispersion characteristic of a rectangular resonator is preliminarily studied.
Shuang Li, Jian-Guo Wang, Guang-Qiang Wang, Peng Zeng, Dong-Yang Wang   +4 more
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Application of Clinotron Scheme for THz Traveling-Wave-Tubes

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019
Results of simulations of the 340 GHz TWT based on the clinotron operation scheme are presented. The advantage of applied clinotron scheme for THz TWT is demonstrated by the results of gain analysis, those were obtained according to nonlinear non-stationary theory of the clinotron amplifier. The output power of simulated clinotron-TWT exceeds the power
A. A. Danik, A. A. Likhachev, S. S. Ponomarenko, S. A. Kishko, Yu. S. Kovshov, E. M. Khutoryan, A. N. Kuleshov   +6 more
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Permanent magnet focusing system optimization for SubMM-waveband clinotrons

2017 IEEE First Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2017
We propose to use composite permanent magnet and iron insert focusing system for modern compact submm-waveband vacuum electron devices of the clinotron type that has the potential of improving by at least a quarter on the mass of the current in-house design while preserving the required values of guide magnetic field, simplifying the system assembly ...
Kostyantyn Ilyenko, Yurii Novosel, Tetyana Yatsenko   +2 more
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On the clinotron effect in a backward-wave tube

Journal of Communications Technology and Electronics, 2017
The results of a theoretical study of the clinotron effect in a clinotron model, which takes into account static electron trajectories in the focusing magnetic field and the initial spacing between the lower beam boundary and the surface of the slow-wave structure, are presented.
Yu. G. Gamayunov, E. V. Patrusheva
openaire   +1 more source