Powerful broadband klystron Russian patent published in 2021 - IPC H01J25/02 H01J23/18 

FIELD: microwaves.

SUBSTANCE: invention relates to the field of microwave electric vacuum devices of klystron type, in particular to continuous broadband klystrons with a continuous output power level of over 25 kW, which can be used as power amplifiers in radio transmitters of long-range space communication systems. The powerful broadband klystron contains the main amplifier klystron, which includes the structural elements of the electron-optical system (EOS) mounted on one main axis, the cathode, the focusing electrode, the anode, the span pipes of the input, intermediate and output active resonators, and the collector. All side span pipes are installed in side covers that separate the active resonators and form flat surfaces of flattened elliptical cylinders (or geometric shapes close to them in shape), made in a single resonant system housing. The central axis of these cylinders is perpendicular to the main axis, and the bases of the cylinders are closed by end caps so that the interaction space between the end parts of the side span pipes in the intermediate resonators is a single high-frequency gap, and the interaction space in the input and output active resonators, each containing a central span pipe installed in the middle of a resonant plate with slits, is a double high-frequency gap. In addition, these resonators, together with the passive resonators in the input and output circuits, form bandpass filter systems. The klystron contains an additional amplifier klystron, the structural elements of which repeat in shape and composition the structural elements of the main klystron and are located on an additional axis that is parallel to the main axis. In each of the active single-gap intermediate resonators, at an equal distance between the main and additional span pipes, the first central rod is installed parallel to the additional axis, electrically connecting the side covers to each other, and in each of the active two-gap resonators, made with possibility of exciting an inphase (2π) oscillation mode, a second central rod is inserted perpendicular to the additional axis, symmetrically closing on the end caps one end of the resonant plate of the main klystron with the end of the additional resonant plate of the additional klystron adjacent to it. The other two ends of the resonant plates remain electrically closed to the resonator body.

EFFECT: improved reliability and quality of radio communication, an increased thermal stability of the resonator unit.

4 cl, 1 tbl, 7 dwg