S. Kishko

Most-cited papers

400-GHz Continuous-Wave Clinotron Oscillator
S. Ponomarenko, S. Kishko, Viktor V. Zavertanniy, E. Khutoryan +3 more
2013IEEE Transactions on Plasma Science61 citations
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Numerical Simulation and Experimental Study of Sub-THz and THz CW Clinotron Oscillators
Y. Kovshov, S. Ponomarenko, S. Kishko, E. Khutoryan +1 more
2018IEEE Transactions on Electron Devices20 citations
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Compact radiation module for THz spectroscopy using 300 GHz continuous-wave clinotron.
A. Likhachev, A. Danik, Y. Kovshov, S. Kishko +6 more
2019Review of Scientific Instruments18 citations
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Effect of Mode Transformation in THz Clinotron
Y. Kovshov, S. Ponomarenko, S. Kishko, A. Likhachev +5 more
2018Journal of Infrared, Millimeter and Terahertz Waves18 citations
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Excitation of Hybrid Space-Surface Waves in Clinotrons with Non-uniform Grating
E. Khutoryan, Y. Kovshov, A. Likhachev, S. Ponomarenko +7 more
201812 citations
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Low-Voltage Cyclotron Resonance Maser
S. Kishko, S. Ponomarenko, A. Kuleshov, V. V. Zavertanniy +2 more
2013IEEE Transactions on Plasma Science10 citations
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Low-Voltage Operation of the Double-Beam Gyrotron at 400 GHz
A. Kuleshov, Y. Ishikawa, Y. Tatematsu, S. Mitsudo +9 more
2020IEEE Transactions on Electron Devices9 citations
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DEVELOPMENT OF 94 GHZ BWO-KLYNOTRON WITH 3-STAGE GRATING
S. Ponomarenko, S. Kishko, E. Khutoryan, A. Kuleshov +1 more
20149 citations
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Spectral Characteristics of THz CW Clinotrons
S. Ponomarenko, A. Likhachev, V. Stoyanova, Y. Kovshov +4 more
2020IEEE Transactions on Electron Devices8 citations
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HIGH FREQUENCY OHMIC LOSSES IN TERAHERTZ FREQUENCY RANGE CW KLYNOTRONS
Y. Kovshov, S. Ponomarenko, S. Kishko, A. Likhachev +4 more
20178 citations
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Traveling-Wave Amplification in a Circuit With Nonuniform Grating
S. Ponomarenko, A. Likhachev, S. Vlasenko, Y. Kovshov +7 more
2021IEEE Transactions on Electron Devices7 citations
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Operational Characteristics of the 175-GHz Continuous-Wave Clinotron
S. Ponomarenko, H. Braune, E. Khutoryan, S. Kishko +6 more
2023IEEE Transactions on Electron Devices6 citations
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Supply voltage control for guaranteed performance of compact terahertz vacuum electron devices.
A. Likhachev, Y. Kovshov, S. Kishko, S. Ponomarenko +3 more
2021Review of Scientific Instruments6 citations
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Development of the 75-GHz planar gyrotron with transverse energy extraction
S. Kishko, A. Kuleshov, M. Glyavin, I. Zotova +4 more
20146 citations
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Effect of Electron Beam Velocity Spread in a Clinotron
A. Likhachev, A. Danik, Y. Kovshov, S. Kishko +4 more
2019IEEE Transactions on Electron Devices5 citations
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Development and Test of 175 GHz Clinotron Tube
A. Likhachev, S. Ponomarenko, S. Kishko, Y. Kovshov +5 more
2021International Vacuum Electronics Conference4 citations
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Increase of Gyrotron Output Power at High-Order Axial Mode Through an After-Cavity Excitation of the Next Transverse Mode
E. Khutoryan, A. Kuleshov, S. Kishko, S. Ponomarenko +12 more
2021Journal of Infrared, Millimeter and Terahertz Waves4 citations
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Radiation Output of the 330 GHz Continuous-Wave Clinotron Oscillator With Modified Cavity
S. Vlasenko, Y. Kovshov, S. Ponomarenko, S. Kishko +6 more
2024IEEE Transactions on Electron Devices3 citations
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Effect of Grating Thermal Expansion on the THz Clinotron Operation
A. Likhachev, Y. Kovshov, S. Ponomarenko, S. Kishko +3 more
2021International Conference on Infrared, Millimeter, and Terahertz Waves3 citations
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Tracking Analysis of a Sheet Electron Beam for Clinotron Tube
Y. Kovshov, S. Ponomarenko, S. Kishko, A. Likhachev +4 more
2018International Conference on Mathematical Methods in Electromagnetic Theory3 citations
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Development of compact CW clinotrons for DNP-NMR spectroscopy
S. Ponomarenko, Y. Kovshov, S. Kishko, Y. Novikova-Korotun +2 more
2016International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves3 citations
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Sub-THz CW clinotron oscillators with increased output power
A. Kuleshov, S. Ponomarenko, S. Kishko, V. Zavertanniy +2 more
2014IEEE International Vacuum Electronics Conference3 citations
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High Performance Dispenser Cathode for the THz Clinotron Tubes
S. Vlasenko, A. Likhachev, Y. Kovshov, S. Kishko +14 more
20222022 IEEE 2nd Ukrainian Microwave Week (UkrMW)2 citations
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THz Imaging System Based on Frequency-Tunable 140 GHz Clinotron and Quasi-Optical Antenna
A. Likhachev, S. Ponomarenko, S. Kishko, Y. Kovshov +3 more
20202020 IEEE Ukrainian Microwave Week (UkrMW)2 citations
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SIMULATION AND EXPERIMENTAL RESEARCH ON CW KLYNOTRON IN FREQUENCY RANGE 125−135 GHZ
Y. Kovshov, S. Kishko, S. Ponomarenko, S. Vlasenko +3 more
20162 citations
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The extension of the operation frequency range of the resonant BWOs by use of the multistage gratings
S. Ponomarenko, S. Kishko, E. Khutoryan, A. Kuleshov +1 more
2014International Conference on Mathematical Methods in Electromagnetic Theory2 citations
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Electromagnetic sources for THz imaging and DNP NMR spectroscopy
S. Ponomarenko, S. Kishko, A. Likhachev, E. Khutoryan +1 more
2021Electromagnetic Waves and Antennas for Biomedical Applications1 citations
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Mode Interaction in Clinotron with Periodically Modified Grating
S. Ponomarenko, A. Likhachev, Y. Kovshov, V. Stoyanova +6 more
2021International Conference on Infrared, Millimeter, and Terahertz Waves1 citations
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Compact THz Continuous-Wave Clinotron Oscillators
A. Danik, A. Likhachev, S. Ponomarenko, S. Kishko +5 more
2019International Conference on Infrared, Millimeter, and Terahertz Waves1 citations
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THz Cherenkov Oscillator with Surface-Radiating Modes
E. Khutoryan, S. Ponomarenko, S. Kishko, Y. Tatematsu +3 more
2019International Conference on Infrared, Millimeter, and Terahertz Waves1 citations
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Demonstration of a Mode Transformation Effect in 300-GHz CW Clinotron
Y. Kovshov, S. Ponomarenko, S. Kishko, A. Likhachev +5 more
2018International Conference on Mathematical Methods in Electromagnetic Theory1 citations
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Numerical simulation and experimental study of 130 GHz CW clinotron oscillator
S. Ponomarenko, Y. Kovshov, S. Kishko, A. Kuleshov
2016International Vacuum Electronics Conference1 citations
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Sub-THz CW clinotrons with multi-stage gratings
Y. Kovshov, S. Kishko, S. Ponomarenko, A. Kuleshov
20152015 International Young Scientists Forum on Applied Physics (YSF)1 citations
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Development of the 75-GHz planar gyrotron with transverse energy extraction
S. Kishko, A. Kuleshov, M. Glyavin, I. Zotova +4 more
2014Journal of communications technology & electronics1 citations
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Millimeter wave bwo-oscillator with multistage grating
S. Ponomarenko, S. Kishko, E. Khutoryan, A. Kuleshov +1 more
20132013 IX Internatioal Conference on Antenna Theory and Techniques1 citations Open access
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On ohmic losses decrease in THz BWO-clinotron oscillators
S. Ponomarenko, S. Kishko, E. Khutoryan, A. Kuleshov +1 more
2013International Conference on Infrared, Millimeter, and Terahertz Waves1 citations
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Low-voltage planar cyclotron resonance maser based on a confocal cavity
S. Kishko, S. Ponomarenko, A. Kuleshov, B. Yefimov +6 more
2013International Conference on Infrared, Millimeter, and Terahertz Waves1 citations
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Negative mass instability in low voltage Cyclotron Resonance Maser
Igor Alexeff, B. Yefimov, S. Kishko, S. Ponomarenko +1 more
2012International Conference on Mathematical Methods in Electromagnetic Theory1 citations
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Operational Characteristics of the 330 GHz Continuous-Wave Clinotron with Modified Cavity
S. Vlasenko, Y. Kovshov, A. Likhachev, Yu. Arkusha +5 more
20242024 Joint International Vacuum Electronics Conference and International Vacuum Electron Sources Conference (IVEC + IVESC)0 citations
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Розробка компактних черенковських приладів зі стрічковими електронними пучками субТГц і ТГц діапазонів частот (огляд)
Сергій Олександрович Власенко, Олександр Олександрович Лихачов, Юрій Сергійович Ковшов, S. Kishko +10 more
2024Известия высших учебных заведений. Радиоэлектроника0 citations Open access
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Sub-THz CW Clinotron Cavity Design
S. Vlasenko, S. Ponomarenko, E. Khutoryan, S. Kishko +2 more
2023International Vacuum Electronics Conference0 citations
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The Gain Analysis of the 345 GHz Traveling-Wave Amplifier with Nonuniform Grating
S. Vlasenko, S. Ponomarenko, Y. Kovshov, V. Stoyanova +4 more
2022International Conference on Infrared, Millimeter, and Terahertz Waves0 citations
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Regime of Traveling Wave Amplification in the Oversized Circuit with Nonuniform Grating
S. Ponomarenko, A. Likhachev, S. Vlasenko, Y. Kovshov +5 more
2022International Vacuum Electronics Conference0 citations
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Influence of the Aftercavity Interaction on the Output Power of a Gyrotron Operating at a High-Order Axial Mode
E. Khutoryan, A. Kuleshov, A. Fedotov, S. Sabchevski +13 more
2021International Vacuum Electronics Conference0 citations
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Efficient Regime of Hybrid Surface-Radiating Waves in a THz Clinotron
E. Khutoryan, S. Ponomarenko, S. Kishko, K. Lukin +4 more
2020International Vacuum Electronics Conference0 citations
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Low-Voltage Adiabatic Magnetron Injection Gun for 400 GHz Gyrotron
A. Likhachev, S. Kishko, S. Ponomarenko, E. Khutoryan +5 more
20202020 IEEE Ukrainian Microwave Week (UkrMW)0 citations
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THz Clinotron Operating in New Regime of Hybrid Surface-Volume Mode with Wide Frequency Tuning Range
A. Likhachev, S. Ponomarenko, S. Kishko, Y. Tatematsu +5 more
20202020 IEEE Ukrainian Microwave Week (UkrMW)0 citations
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Application of Clinotron Scheme for THz Traveling-Wave-Tubes
A. Danik, A. Likhachev, S. Ponomarenko, S. Kishko +3 more
2019International Conference on Infrared, Millimeter, and Terahertz Waves0 citations
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Development of compact generator complexes based on terahertz clinotrons at O. Ya. Usikov IRE NAS of Ukraine
A. Likhachev, S. Kishko, Y. Kovshov, A. A. Danik +13 more
2019RADIOFIZIKA I ELEKTRONIKA0 citations Open access
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Electron Beam Velocity Spread Effect on a Clinotron Operation
Y. Kovshov, S. Ponomarenko, S. Kishko, A. Likhachev +5 more
2018International Conference on Mathematical Methods in Electromagnetic Theory0 citations
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