Relativistic backward-wave oscillator with collector shaped as Chinese character chang

Abstract

The present invention relates to a microwave source of the high-power microwave technology field, and provides a relativistic backward-wave oscillator with a collector shaped as a Chinese character chang. The relativistic backward-wave oscillator comprises a cathode base, a cathode, an anode outer cylinder, a cut-off neck, a slow wave structure, a tapered waveguide, a reflector, an output waveguide and a solenoidal magnetic field. The collector shaped as the Chinese character chang is arranged behind the tapered waveguide, a stepped reflection cavity is arranged between the cut-off neck and the slow wave structure, and double extraction cavities are also arranged between the tail end of the slow wave structure and the tapered waveguide. The relativistic backward-wave oscillator of the present invention overcomes the disadvantage that the conventional relativistic backward-wave oscillator is difficult to consider the long output microwave pulse width and the high power conversion efficiency simultaneously, solves the problem that a coaxial extraction structure is easy to generate the plasmas to thereby influence the working efficiency, and realizes the microwave output that the pulse width is greater than 100 ns, the efficiency is greater than 40%, and the power is 6 GW, on the condition of using less slow wave blades. Moreover, a high-power microwave source is compact in structure, and is easy for the repeated frequency operation.

Description

technical field [0001] The invention relates to microwave source devices in the technical field of high-power microwaves, in particular to a relativistic return-wave oscillator with factory-shaped collector poles. Background technique [0002] At present, high-power microwaves (usually referring to electromagnetic waves with a peak power greater than 100 MW and a frequency between 1 and 300 GHz) are used in directed energy weapons, power supply for satellites and space platforms, launch of small deep space probes, altitude change propulsion systems of orbiters, Electronic high-energy radio frequency accelerators, material processing and processing are widely used in national defense and industrial fields. [0003] The high power microwave source is the core device of the high power microwave system, and its operation is based on the coherent radiation of electron beams. As a relatively mature high-power microwave source, the relativistic return wave oscillator has the chara...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the present invention provides a relativistic back-wave oscillator with factory-shaped collector poles, which overcomes the difficulty of taking into account the long output microwave pulse width and high power conversion efficiency of conventional relativistic back-wave oscillators, and solves the problem of coaxial The extraction structure is easy to generate plasma and affect the working efficiency. Under the condition of using less slow wave blades, the microwave output with pulse width greater than 100ns and efficiency greater than 40% is realized, and the high-power microwave source has a compact structure and is easy to repeat frequency operation.

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