Abstract
The paper presents the prebunching characteristics and the linear response of the output cavity of a two-state gyroklystron, with prescribed gaussian field profile. The influence of the RF magnetic field in the bunching process and cavity beam loading is taken into account, and analytical expressions are derived for the RF injected beam current in the output cavity, the bunching parameter, the mutual admittance, and the small-signal gain. Numerical results for the small-signal gain and the phase shift, as well as their response to beam characteristics and DC magnetic field variations, are also presented, for a particular TE01/TE04, 6 GHz, gyroklystron amplifier.
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