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Влияние пролетного канала на дисперсионные характеристики резонаторных замедляющих систем
С. 183–184.
In this work we make a closer look at rectangular and axial-symmetric resonator slowing systems, in construction of which we use transmission matrix, by which we can set different values of the operation of the slowing system. The transmission matrix elements are defined by the results of 3D modeling with HFSS software. The software option, using 4x4 transmission matrix, was used to study the impact of flyby channel on dispersion characteristics of slowing systems.
In book
Т. 1. , Севастополь: Оргкомитет КрыМиКо-2015, КНТЦ им. А.С.Попова, 2015.
Yurin A., International Journal of Applied Glass Science 2026 Vol. 17 No. 2 Article e70022
This article presents a three autocollimation method (TAM) for measuring the refractive index (RI) of optical glass. The popular minimum deviation method (MDM) for RI measurement is accurate, but it is very laborious, since the procedure of determining the minimum possible angle requires many iterations. TAM allows the calculation of RI based on the measurement ...
Added: January 23, 2026
Svoyski Y., Леванова Е. С., Романенко Е. В. et al., Археология, этнография и антропология Евразии 2025 Т. 53 № 3 С. 45–52
We present preliminary fi ndings relating to the Rashaan-Khad (Arshan-Khad, Mongolia) petroglyph site studied by
the Russian-Mongolian expedition in 2016 and 2023. Special attention is paid to petroglyphs that, in A.P. Okladnikov’s
words, appear archaic and those that can with various degree of certainty be interpreted as representations
of Late Pleistocene mammals such as woolly rhinoceros or mammoths. ...
Added: November 30, 2025
Павлов Д. М., Леванова Е. С., Svoyski Y., Проблемы истории, филологии, культуры 2025 № 3(89) С. 147–164
2025 marks the 60th anniversary of the discovery of petroglyphs on the Pegtymel River
(northwestern Chukotka), fi rst explored by Soviet archaeologist N.N. Dikov in 1967–1968.
Since 2021, the team of the Institute of Archaeology of the Russian Academy of Sciences (IA
RAS) has been working on digital mapping and documenting the petroglyphs of Pegtymel River
to create an ...
Added: November 30, 2025
S. A. Presnyakov, A. D. Kasatkin, N. P. Kravchenko, , in: 2024 Systems of signals generating and processing in the field of on board communications.: IEEE, 2024. P. 1–6.
In this paper, the slow-wave structures (SWSs) of the “chain of coupled cavities”-type (CCC) were investigated. This type of SWS is widely used for designing the microwave amplifying devices due to their excellent heat dissipation properties allowing for higher output power. The influence of the transit channel, where the electron beam propagates, on the electrodynamic ...
Added: September 14, 2024
Yurin A., Вишняков Г. Н., Minaev V., Компьютерная оптика 2024 Т. 48 № 2 С. 225–230
Dispersion characteristics of optical glass are considered. An approach to research of dispersion characteristics of optical glass is proposed, requiring the measurement of the refractive index at only three wavelengths, which simplifies the measurement process compared with the use of the widely used Sellmeier equation. An approximation function for the refractive index of optical glass ...
Added: January 2, 2024
S. A. Presnyakov, A. D. Kasatkin, N. P. Kravchenko, , in: 2023 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO).: IEEE, 2023. P. 1–4.
In this paper, the slow-wave structure (SWS) of the “folded waveguide” -type was considered. This SWS is widely used for designing the devices in higher frequencies like millimeter and sub millimeter ranges due to its compactness, increased interaction length, reduced transit time effects, lower voltage requirements, and wide bandwidth. The calculation of its electrodynamic characteristics, ...
Added: October 16, 2023
Авдеев А. Г., Окладникова Е. А., Svoyski Y. et al., В кн.: Археология Подмосковья: Материалы научного семинара. Выпуск 18Вып. 18.: М.: ИА РАН, 2022. С. 280–295.
The paper presents a new reading of the inscriptions on two nominal notes found on the coast of Sims Bay in the Laptev Sea. It differs from the readings of paleographers and source historians published earlier, due to the fact that it was possible to give a correct reading of these inscriptions thanks to the ...
Added: June 25, 2023
Абдуллина У. В., Iarkova V., В кн.: Апрельские тезисы: материалы междисциплинарной научно-исследовательской конференции (г. Пермь, 2–3 апреля 2021 г.).: Пермь: Пермский государственный национальный исследовательский университет, 2021. С. 375–382.
Dymkovo toys, also known as Vyatka toys or Kirov toys, are considered an integral part of the cultural heritage of Russia. Now, despite the historical and cultural significance of these toys, people pay little attention to the problem of preserving their appearance and the canons of clay toys` making process. This article is dedicated to ...
Added: April 4, 2022
Titov I., Стройлов В. С., Русина П. В. et al., Russian Chemical Reviews 2021 Vol. 90 No. 7 P. 831–867
The review aims to present a classification and applicability analysis of methods for preliminary molecular modelling for targeted organic, catalytic and biocatalytic synthesis. The following three main approaches are considered as a primary classification of the methods: modelling of the target – ligand coordination without structural information on both the target and the resulting complex; ...
Added: December 24, 2021
Kasatkin A., Presnyakov S., Kravchenko N. et al., , in: SYNCHROINFO 2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications, IEEE Conference # 47541.: IEEE, 2019. P. 1–5.
The subject of consideration of this work is the development of the design, algorithm and program for calculating the dispersion characteristics of the coaxial-radial line (CRL). The selected design of the CRL allows to optimize the coupling impedance and the dispersion of the SWS. ...
Added: October 24, 2019
Mozgovoi Y. D., Khritkin S. A., Nikitina E. M., , in: 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE).: Саратов: IEEE, 2018. P. 113–119.
In the framework of the theory of coupled waves and the method of equivalent circuits, a dispersion equation for resonant slow-wave systems with an electron beam is obtained. For an electrodynamic system in the form of a folded waveguide with given geometric parameters and calculated electrodynamic characteristics, an equivalent circuit is constructed, and its parameters ...
Added: October 16, 2018
Kravchenko N., Kasatkin A., Presnyakov S. et al., , in: 2018 Systems of Signals Generating and Processing in the Field of on Board Communications, IEEE Conference #43917, Moscow Technical University of Сommunications and Informatics.: IEEE, 2018. P. 1–5.
This paper describes concept of program complex’s composition which is used for traveling-wave tube (TWT) with resonator slow-wave structures and designing and implementating models for this complex. Projects of cm-range and mm-range TWT developed with program complex “VEGA” are presented. ...
Added: May 14, 2018
Иванов А.В., В кн.: Межвузовская научно-техническая конференция студентов, аспирантов и молодых специалистов им. Е.В. Арменского.: М.: МИЭМ НИУ ВШЭ, 2017. С. 195–195.
В данной работе было проведено 3D-моделирование параболической двухзеркальной антенны в диапазоне частот (11…12,7) ГГц при помощи программы HFSS Ansoft. Был выполнен расчет основных электродинамических параметров, в частности диаграммы направленности (ДН). ...
Added: December 11, 2017
Andrey V. Ivanov, T-Comm: Telecommunications and transport 2017 Vol. Том 11 No. №10 P. 80–83
Added: December 11, 2017
Kravchenko N., Kasatkin A., Presnyakov S. et al., В кн.: III Всероссийская научно-техническая конференция "ПРОБЛЕМЫ СВЧ ЭЛЕКТРОНИКИ" им. В.А.Солнцева 2017.: М.: ИД Медиа Паблишер, 2017. С. 24–27.
Для моделирования резонаторных замедляющих систем пучково-плазменных приборов в работе использовался метод эквивалентных систем, а в качестве заполнителя пролетного канала рассматривалась бесстолкновительная плазма. Сопоставление результатов расчета показывает адекватность разработанной модели. Анализировались дисперсионные характеристики. Разработана структура высокочастотного блока пучково-плазменной ЛБВ и с помощью программы «VEGA» проведена оценка параметров лампы. ...
Added: December 8, 2017
Khritkin S. A., Mozgovoi Y. D., Евдокимов Ю. В., В кн.: III Всероссийская научно-техническая конференция "ПРОБЛЕМЫ СВЧ ЭЛЕКТРОНИКИ" им. В.А.Солнцева 2017.: М.: ИД Медиа Паблишер, 2017. С. 42–43.
Развиты методы связанных волн в линейном приближении и крупных частиц в рамках нелинейной теории для попутных разноскоростных потоков в гладком волноводе. В режиме малого сигнала при синхронизме медленной и быстрой волн пространственного заряда усиление сигнала в попутных потоках отличается экспоненциальным нарастанием амплитуд волн (аналог режима ЛБВ усилителя). Режимы большого сигнала исследуются в рамках общего подхода ...
Added: December 5, 2017
Kravchenko N., Mukhin S., Presnyakov S., Journal of Communications Technology and Electronics 2017 Vol. 62 No. 7 P. 800–808
Models of rectangular and axially symmetric resonator slow-wave structures, which are built using transmission matrix for determining the characteristics of the slow-wave structures in different operation modes, are investigated. Elements of the transmission matrix are determined from the results of 3D simulation with the use of the HFSS software. In the analysis of the dispersion ...
Added: October 24, 2017