Cross-band multi-frequency controllable slow wave structure folding relativistic backward wave oscillator

Abstract

The invention discloses a cross-band multi-frequency controllable slow wave structure folding relativistic backward wave oscillator. The problem that the existing produced high-power microwave device in the L-Ku band is of great axial length which is not conducive to miniaturization is solved. The oscillator comprises a sleeve and a coaxial inner conductor arranged along the axis of the sleeve. The oscillator is characterized in that two slow wave structures are stacked in the sleeve; one slow wave structure with a center hole disk-loaded waveguide is arranged on the inner wall of the sleeve, and the other slow wave structure with an edge hole disk-loaded waveguide is arranged in the coaxial inner conductor; the two slow wave structures are in different periods under the action of an adjustment mechanism; and when an intense electron beam is in the period adjustment state of the slow wave structures, the device generates multi-frequency controllable L-Ku band high-power microwave. By adopting the structure, the relativistic backward wave oscillator can generate L-Ku band high-power microwave through radiation under the condition of small axial dimension. The structure is conductive to a miniaturized and integrated device.

Description

technical field [0001] The invention belongs to the technical field of high-power microwave devices, and in particular relates to a cross-band multi-frequency controllable slow wave structure folded relativistic return wave oscillator. Background technique [0002] In order to cope with complex frequency-using equipment, multi-frequency controllable high-power microwave devices have become a core component that urgently needs to be studied. The formation of this type of device is a potential application scenario proposed as high-power microwave technology gradually becomes practical. Implement countermeasures. During the working process of the multi-frequency controllable high-power microwave device, under each pulse voltage, the device can sequentially radiate and generate high-power microwaves of different frequencies by adjusting the structural parameters. A certain sequence is generated independently without interfering with each other. [0003] Due to the sensitive co...

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Problems solved by technology

[0006] The invention provides a cross-band multi-frequency controllable slow-wave structure folded relativistic return wave oscillator, which solves the problem of using a two-section controllable slow-wave periodic structure in order to realize a single device to generate high-power microwaves covering the L-Ku band. Two sections of slow-wave structure with adjustable period can generate multi-frequency controllable low-frequency band (L-S band) and multi-frequency controllable high-frequency band (C-Ku band) high-power microwaves respectively, but this design method virtually prolongs the The axial length of the device is not conducive to the miniaturization and integration design requirements of the device, and more importantly, it increases the power supply demand for guiding the magnetic field, making the overall structural system very large.

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