Four-gap high-power repetition frequency output cavity for middle microwave extraction and outer electron collection

The invention relates to a coaxial microwave output cavity in the technical field of high-power microwaves, in particular to a four-gap high-power repetition frequency output cavity for middle microwave extraction and outer electron collection. Comprising an outer conductor, an inner conductor, a first drift tube, a reflection cavity composed of a reflection cavity outer cavity and a reflection cavity inner cavity, a second drift tube, an extraction cavity composed of an extraction cavity outer cavity and an extraction cavity inner cavity, a third drift tube, a collector, a coaxial output waveguide, a first supporting rod and a second supporting rod. The whole structure is rotationally symmetrical about the central axis, the left end of the first drift tube is connected with an electron beam modulation structure of the coaxial HPM device, and the right end of the coaxial output waveguide is connected with the mode converter and the antenna. By reasonably designing the electromagnetic structure, the problems t