ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

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Kurkin S. A., Koronovskii A. A., Hramov A. E., Egorov E. N., Runnova A. E., Magda I. I., Melezhik O. G. Three-­dimensional simulation of virtode with toroidal cavities. Izvestiya VUZ. Applied Nonlinear Dynamics, 2012, vol. 20, iss. 5, pp. 121-136. DOI: 10.18500/0869-6632-2012-20-5-121-136

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
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Language: 
Russian
Heading: 
Materials XV Winter School-seminar on microwave electronics and radiophysics
Article type: 
Proceedings
UDC: 
533.9
DOI: 
10.18500/0869-6632-2012-20-5-121-136

Three-­dimensional simulation of virtode with toroidal cavities

Autors: 
Kurkin Semen Andreevich, Innopolis University
Koronovskii Aleksei Aleksandrovich, Saratov State University
Hramov Aleksandr Evgenevich, Immanuel Kant Baltic Federal University
Egorov Evgenij Nikolaevich, Saratov State University
Runnova Anastasia Evgenevna, Saratov State University
Magda Igor Ivanovich, National Science Center Kharkov Institute of Physics and Technology
Melezhik Olga Georgievna, National Science Center Kharkov Institute of Physics and Technology
Abstract: 

The results of preliminary 3D fully electromagnetic simulation of microwave generator with virtual cathode and external feedback loop (virtode) are discussed in this paper. The feedback is realized by the velocity modulation of electron beam in the accelerating gap of electron gun with the electromagnetic signal taken with output cavity placed in the virtual cathode area. It has been shown that there is a possibility of increase of power and regularity of oscillations by adjusting the feedback resonators and possibility of generation at higher harmonics of virtual cathode oscillations in the system. In the future, it can be used to increase the frequency of vircator generation by creating the virtode frequency multiplier with cavities tuned to the higher harmonics of virtual cathode oscillations. 

Key words: 
Virtode
microwave generator
virtual cathode
nonlinear dynamics
microwave electronics
vircator
wideband generation
numerical simulation
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Received: 
10.05.2012
Accepted: 
23.07.2012
Published: 
31.01.2013
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