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Absorbing cavity device and debugging method for suppressing 2π mode oscillation of double-gap coupling cavity

The technology of absorption cavity and coupling cavity is applied in the field of absorption cavity device for suppressing 2π mode oscillation of double-gap coupling cavity, which can solve the problems affecting the working stability of multi-injection klystron in the DC state and high resonance frequency, and achieve the elimination of instability. , good heat dissipation, reducing the effect of noise level

Active Publication Date: 2016-09-21
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

However, the actual pipe production work shows that the resonant frequency is relatively high, and the field shape is 2π mode TM 110 The mode will also produce oscillation under certain conditions, which will also seriously affect the stability of the DC state of the multi-beam klystron

Method used

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  • Absorbing cavity device and debugging method for suppressing 2π mode oscillation of double-gap coupling cavity
  • Absorbing cavity device and debugging method for suppressing 2π mode oscillation of double-gap coupling cavity
  • Absorbing cavity device and debugging method for suppressing 2π mode oscillation of double-gap coupling cavity

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides an absorption cavity device for suppressing 2π mode oscillation in a double-gap coupling cavity. The double-tuned absorber of the high-absorber device simultaneously resonates in TM 110 Mode and TM 210 mode, and connected to the double-gap coupling cavity through the coupling waveguide, which can effectively suppress the oscillation of the two non-working modes with 2π mode field distribution in the output circuit of the double-gap coupling cavity, and eliminate the multi-beam speed regulation caused by this type of oscillation The instability of the tube reduces the noise level.

Description

technical field [0001] The invention relates to the field of electric vacuum technology in the electronics industry, in particular to an absorption cavity device for suppressing 2π-mode oscillation of a double-gap coupling cavity. Background technique [0002] In order to expand the bandwidth of multi-beam klystrons, double-gap coupled cavities are usually used as broadband output circuits. Due to the internal feedback between the two resonant cavities of the double-gap coupling cavity output circuit, under certain conditions, it will cause non-working mode oscillation, resulting in a decrease in the electronic injection current and electronic injection rate of the multi-beam klystron, causing multi-beam klystron Tube ignition. In addition, under high-frequency excitation, due to the change of electron beam velocity or the existence of a small amount of inverted electrons and secondary electrons, other non-working modes will be excited to form a mixed spectrum, which reduce...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J23/213
Inventor 沈斌丁耀根顾红红丁海兵曹静
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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