Optimization of multibeam klystron double gap cavities loaded by metal rods

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 2n mode with a frequency of 24.15 GHz. Electrodynamic characteri...

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Bibliographic Details
Published in:Microwave and optical technology letters 2021-04, Vol.63 (4), p.1035-1041
Main Authors: Muchkaev, V. Yu, Tsarev, V. A.
Format: Article
Language:English
Subjects:
3D numerical simula‐ tion
Cavity resonators
double‐gap resonator
Electron beams
multibeam klystron
Optimization
Photonic band gaps
photonic crystal lattice
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Summary: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 2n 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.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32674