| 摘要 |
The invention provides for a device producing ultrahigh frequency energy from an electron beam. It mainly comprises: an electronic gun (1) producing an electron beam (8) in a so-called injection zone (3); modulating ultrahigh frequency circuitry (7) for superimposing an alternating voltage at a given frequency on a beam voltage within the injection zone, the amplitude of the said voltage being such that, in one of its alternations, it provides for transition between the passing state and the effective cathode state, thus causing modulation of the current carried by the electron beam; an output ultrahigh frequency circuitry (7), operating at the modulation signal frequency and driven by the aforesaid modulated current. |
