Анотація:
Microwave generation by an electron beam in a coaxial transmission line in which the inner and outer conductors
are both corrugated is studied theoretically. An annular electron beam propagates in a transport channel filled entirely
with plasma. The results of nonlinear modeling of amplification of eigen waves in that structure are represented. The
wave saturation amplitudes for various plasma densities are found. The influence of wave damping on the output power
of this amplifier is studied. It is shown that the threshold current, at which one there is no amplification in whole wide
passband.