Development of compact Cherenkov devices with sheet electron beams in sub-THz and THz frequency ranges (review)

Sergiy Vlasenko; Oleksandr Likhachev; Yuriy Kovshov; Sergiy Kishko; Sergiy Ponomarenko; Oleksandr Zabrodskiy; Oleksiy Kuleshov; Eduard Khutoryan; Sergiy Steshenko; Anatolii Kirilenko; Yuriy Arkusha; Kostyantyn Lukin; Masahiko Tani; Yoshinori Tatematsu

doi:10.3103/S073527272403004X

Authors

Sergiy Vlasenko O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine; V. N. Karazin Kharkiv National University, Kharkiv, Ukraine https://orcid.org/0000-0003-1609-2248
Oleksandr Likhachev O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0001-6684-4327
Yuriy Kovshov O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0003-0055-8162
Sergiy Kishko O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0002-3484-5787
Sergiy Ponomarenko O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine; Max Planck Institute for Plasma Physics, Greifswald, Germany https://orcid.org/0000-0002-6993-9329
Oleksandr Zabrodskiy O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0009-0000-1887-5567
Oleksiy Kuleshov O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0001-7939-3641
Eduard Khutoryan O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0002-0727-7753
Sergiy Steshenko O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Ukraine https://orcid.org/0000-0003-4777-3927
Anatolii Kirilenko O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine https://orcid.org/0000-0002-8717-5334
Yuriy Arkusha V. N. Karazin Kharkiv National University, Kharkiv, Ukraine https://orcid.org/0000-0002-6483-4341
Kostyantyn Lukin O. Ya. Usikov Institute for Radiophysics and Electronics of NAS of Ukraine, Kharkiv, Ukraine; Instituto Tecnológico de Aeronáutica (ITA), Sao Jose dos Campos, Brazil https://orcid.org/0000-0001-9998-9207
Masahiko Tani University of Fukui, Fukui, Japan
Yoshinori Tatematsu University of Fukui, Fukui, Japan

DOI:

https://doi.org/10.3103/S073527272403004X

Keywords:

beam-wave interaction, clinotron, backward wave oscillator, travelling wave tube, Cherenkov vacuum electron device, slow-wave circuit, bi-periodic grating, oversized waveguide, T-junction, S-matrix, mode transformation, hybrid bulk-surface mode, leaky wave, Smith-Purcell radiation, spoof surface plasmon polariton, THz radiation

Abstract

Results of both theoretical and experimental studies of the beam-wave interaction in compact vacuum electron devices of the clinotron type are presented and discussed. Several modifications to the interaction circuit and radiation output were proposed to improve the performance of clinotron tubes in the sub-THz and THz ranges. These modifications include optimization of the conventional clinotron design to enhance beam-wave interaction and ensure single-mode output radiation in an oversized cavity. Additionally, a new design approach was considered for the THz Cherenkov oscillators and amplifiers, which are based on the excitation of hybrid bulk-surface modes in circuits containing bi-periodic gratings. Theoretical studies were conducted using both “cold” and “hot” simulations with in-house and commercial software. The typical performance of experimental tubes operating in the frequency range of 90 GHz to 410 GHz is presented and compared with the theoretical predictions. Plans for future studies and the developments of THz tubes are also outlined.

Author Biographies

Masahiko Tani, University of Fukui, Fukui

Research Center for Development of Far-Infrared Region

Yoshinori Tatematsu, University of Fukui, Fukui

Research Center for Development of Far-Infrared Region

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