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This paper describes the self-oscillation phenomenon which was detected in the course of hot-test of an S-band 22kW Average-Power-Klystron with 7.14% relative bandwidth [1], the oscillation frequency is in the vicinity of 8.9GHz and in accord with the high-order mode of TE311 of cylindrical cavity by the means simulation of the double-gap output cavity. In order to eliminate the self-oscillation,...
This paper presents a method to calculate the admittance of electron beam and of circuits in a multiple-beam klystron output circuit of double-gap coupling cavity. With the conditions of monotron oscillation, the possibility of forming monotron oscillations in a double-gap coupling output cavity is studied based on analytical calculations, and a method for calculating the initial oscillation current...
Electrodynamic parameters of complicated output RF systems of multiple-beam klystron are under research in this article. The gain-frequency characteristic was obtained, values of operating frequencies, loaded and unloaded Q-factors, R/Q values and interaction coefficients of the double-gap output cavity with matching system and output waveguide were calculated. Dependence of external Q-factor from...
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