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Fractal double‐gap resonators with electromagnetic band gap for miniature X‐band multi‐beam klystrons
Author(s) -
Tsarev Vladislav Alekseevich,
Nesterov Dmitriy Anatolievich,
Muchkaev Vadim Yurievich
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22450
Subject(s) - klystron , resonator , beam (structure) , physics , fractal , optics , cathode ray , band gap , optoelectronics , electron , mathematics , mathematical analysis , quantum mechanics
This article is devoted to the study of beam‐wave interaction behavior of a double gap electromagnetic band‐gap resonator for a cluster miniature multi‐beam klystron (MMBK) with 114 beams operating at 12 GHz of a higher order 2 π mode. We propose to use a fractality as a basic concept for modeling, analysis, and design for a new spatially developed quasi‐fractal resonators with six sub‐group of beam‐clusters. The tree‐like fractal double‐gap resonator contains electromagnetic band gap “traps” for parasitic types of oscillations in the form of clusters of metal and ceramic rods, which allow us to suppress higher parasitic types of oscillations. The results of calculations show the possibility of development a super‐multi‐beam miniature klystron with an output power of 7 kW when the overall efficiency is 30%.