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Optimization of multibeam klystron double gap cavities loaded by metal rods
Author(s) -
Muchkaev V. Yu.,
Tsarev V. A.
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32674
Subject(s) - klystron , resonator , cathode ray , q factor , rod , materials science , beam (structure) , coupling (piping) , conductivity , photonic crystal , optics , optoelectronics , physics , electron , nuclear physics , medicine , alternative medicine , pathology , quantum mechanics , metallurgy
In this paper, the results of numerical investigation of a metal photonic band gap cavity are presented. The investigated resonator is dual‐gap and is considered as an intermediate for the K ‐band multibeam klystron. A working mode is a 2 n mode with a frequency of 24.15 GHz. Electrodynamic characteristics of the cavity (characteristic impendance, beam coupling factor, relative electronic conductivity, Q ‐factor) were calculated and the conditions for achieving the maximum effciency are found. Based on the obtained data, the required number of gaps in the output cavity was estimated, as well as the power and efficiency of the multibeam klystron with this type of cavities, depending on the microperveance of the electron beam.