Results 51 to 60 of about 204 (86)

400-GHz Continuous-Wave Clinotron Oscillator

IEEE Transactions on Plasma Science, 2013
Experimental results of a 400-GHz clinotron, which is a modification of the backward-wave oscillator, are presented. Development of grating, focusing magnetic system, and electron gun is shown. The clinotron tube is designed to use a high-perveance electron gun and thereby enhance the output power and efficiency.
Sergey S. Ponomarenko, Sergey A. Kishko, Viktor V. Zavertanniy, Eduard M. Khutoryan, Igor V. Lopatin, Boris P. Yefimov, Alexei N. Kuleshov   +6 more
openaire   +1 more source

Following-wave amplification mode of a clinotron

Journal of Communications Technology and Electronics, 2016
The following-wave amplification mode of a model of the clinotron with linear electron trajectories is studied in the framework of linear and nonlinear theories. It is demonstrated that the clinotron effect is absent in the linear mode, since the amplification factor is maximized at zero angle between the beam and the surface of the slow-wave structure.
Yu. G. Gamayunov, E. V. Patrusheva, A. G. Rozhnev   +2 more
openaire   +1 more source

Effect of Mode Transformation in THz Clinotron

Journal of Infrared, Millimeter, and Terahertz Waves, 2018
Extension of the theory of a clinotron is developed by use of the scattering matrix of an oversized T-junction on the ends of a slow wave system. The matrix contains elements corresponding to the transformation of slow grating modes into fast ones and vice versa.
Yurii S. Kovshov, Sergey S. Ponomarenko, Sergey S. Kishko, Alexander Likhachev, Alexander Danik, Lyudmila Mospan, Sergiy Steshenko, Eduard M. Khutoryan, Alexei N. Kuleshov   +8 more
openaire   +1 more source

Mode Interaction in Clinotron with Periodically Modified Grating

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2021
The interaction of the modes with different variations along grating lamella occurring in a clinotron with periodically modified grating due to the profile of the clinotron circuit cross-section, has been studied. The simulation results demonstrate the interaction of the sheet electron beam with two modes, which differ in the transverse index, at the ...
S. S. Ponomarenko, A. A. Likhachev, Yu. S. Kovshov, V. V. Stoyanova, S. A. Kishko, E. M. Khutoryan, K. A. Lukin, A. N. Kuleshov, Y. Tatematsu, M. Tani   +9 more
openaire   +1 more source

Beam-wave interaction in 0.1 THz Clinotron

2011 International Conference on Infrared, Millimeter, and Terahertz Waves, 2011
The electron beam interaction with the radio-frequency field (RF) close to the surface of the slow-wave structure of W-band Clinotron is studied by numerical simulations with regard to the real RF field distribution, for the inclined electron beam to the periodical slow-wave structure under small angle α.
M. A. Sattorov, G. S. Park, K. A. Lukin, M. V. Mil'cho   +3 more
openaire   +1 more source

Clinotron-Based Synthesized Oscillatiors for THz-Regions

2007 International Kharkiv Symposium Physics and Engrg. of Millimeter and Sub-Millimeter Waves (MSMW), 2007
Advances in the design, realization, and investigation of the clinotron-based synthesized oscillators for THz-regions are considered. A high output power level, a fast frequency sweep, and a high frequency resolution are the characteristic features of the oscillators.
V. A. Volkov, D. M. Vavriv, V. G. Chumak, A. A. Belikov, S. V. Alekseenkov, R. V. Kozhyn   +5 more
openaire   +1 more source

Analysis of the Clinotron Slow-Wave Structure

2006 International Conference on Mathematical Methods in Electromagnetic Theory, 2006
The accurate model of the clinotron slow-wave structure is built on the basis of mode matching technique. The influence of the distance between the lamellar grating and the waveguide side wall is investigated.
A. Kirilenko, D. Kulik, S. Steshenko, V. Tkachenko   +3 more
openaire   +1 more source

Development of CW clinotron oscillator at 400 GHz

2012 International Conference on Mathematical Methods in Electromagnetic Theory, 2012
Backward Wave Oscillators are the most established vacuum electronic devices for THz and near-THz applications. The most powerful of these VEDs are BWO-clinotrons. Design process of 400 GHz Clinotron and its magnetic focusing system using 3D and 2D electromagnetic computer codes is presented.
S. Ponomarenko, S. Kishko, E. Khutoryan, A. Tishenko, A. Kuleshov, B. P. Yefimov   +5 more
openaire   +1 more source

Prime study on dispersion of 0.3THz clinotron

2015 IEEE International Vacuum Electronics Conference (IVEC), 2015
Based on the research of dispersion relationship and field distribution of clinotron theoretically, the resonator used for 0.3THz clinotron is designed. The mode distribution on transverse section area of optimum structure is analyzed, which is meaningful for the further development of 0.3THz clinotron.
Li Shuang, Wang Jianguo, Teng Yan, Wang Guangqiang, Song Zhimin, Zeng Peng   +5 more
openaire   +1 more source

Waveguide output for 130 GHz CW Clinotron

2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2016
The numerical simulation of waveguide output of CW Clinotron is proposed. Also the results of trajectory analysis are presented in order to compare the results in the case of optimized and non optimized geometries. To consider the power dissipation at the shielding rods the simulation results of thermal distribution along the rods are presented.
S. A. Kishko, S. S. Ponomarenko, Yu. S. Kovshov, A. N. Kuleshov   +3 more
openaire   +1 more source