Suppressor for high-frequency output of gyrotron traveling-wave tube

Abstract

The invention discloses a suppressor for high-frequency output of a gyrotron traveling-wave tube. The suppressor comprises a main waveguide and at least one auxiliary waveguide distributed in the axial direction of the main waveguide. The main waveguide and the auxiliary waveguide are made of metal; and a parasitic mode phase in the main waveguide is equal to a working mode phase in the auxiliarywaveguide. Wave absorbing plug bodies for absorbing parasitic mode power entering the auxiliary waveguide from the main waveguide in a coupling mode are arranged at orifices at the two ends of the auxiliary waveguide. A plurality of coupling holes enabling the inner cavity of the main waveguide to be communicated with the inner cavity of the auxiliary waveguide are formed at equal intervals in theconnection surface owned by the auxiliary waveguide and the main waveguide in common. When the transmission mode of the main waveguide is not coupled to the auxiliary waveguide and all parasitic modes in the main waveguide are able to be coupled to the auxiliary waveguide, the space between each two adjacent coupling holes located at the same axis is calculated.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to a suppressor used for high-frequency output of a cyclotron traveling wave tube. Background technique [0002] The gyrotron is a device that uses the relativistic angular clustering generated by the electron relativistic effect to achieve electron injection and high-frequency field transduction. It is a high-power millimeter-wave amplifier based on the electronic gyrotron maser, which can generate high pulses in the millimeter-wave frequency range. Power and high average power, so it has broad application prospects in high-resolution imaging radar, electronic countermeasures, and secure satellite communications. However, the gyrotron often has the problem of impurity in the output mode, and the use of the overmode output waveguide will lead to the possibility of aggravating the impurity, such as working in TE 01 Mode of the gyrotron, there is often a small amount o...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the prior art, the suppressor for the high-frequency output of the cyclotron traveling wave tube provided by the present invention solves the problem of impurity in the output mode of the existing high-power microwave source

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