Method for manufacturing helix line slow-wave system of wide frequency band traveling wave tube

Abstract

The invention provides a method for manufacturing helix line slow-wave system of wide frequency band traveling wave tube which belongs to the microwave electronics device field. The system comprises the helix line coiling forming, the media clamp rod and a metal load assembly fixed in a metal load longitudinal groove. The system is assembled according with steps as follows: a. fixing the helix line, three metal load assembling pieces and three technique core rods for assembling into an assembly component on two ends by a locating clamp; b. inserting the assembly component into a small segment metal pipe case for assembling; c. moving the small segment metal pipe case, filling the assembly component into a total metal pipe case along a metal pipe case conducting channel, then removing the small segment metal pipe case. The method can increase manufacturing precision (tolerance 3-5 mum) of aperture between the helix line and the load component greatly, has little manufacturing labour amount, increases radiation ability of the whole slow-wave system, reduces crispness pressure of the clamp rod and reduces mortality of accessory.

Description

Technical field [0001] The invention belongs to the field of microwave electronic devices, and particularly relates to a method for manufacturing a spiral slow wave system of a broadband traveling wave tube in microwave electronic devices. Background technique [0002] The structure and manufacturing technology of the broadband traveling wave tube spiral slow wave system should be able to meet different performance index requirements. Broadband traveling wave tubes require good dispersion characteristics, bandwidth and output parameters, which largely depend on the structure and manufacturing process of the slow wave system. In order to realize the broadband dispersion characteristics and output parameters of the traveling wave tube, it is necessary to make a reasonable selection of the structure and manufacturing process of the slow wave system. Generally, in the production of spiral traveling wave tube slow wave system, the manufacturing errors of the spiral and tube shel...

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Problems solved by technology

[0003] The problem to be solved by the present invention is to precisely control the height of the load assembly by using the height of the clamping rod and the depth of the longitudinal groove on the metal load in view of the strict requirements on the cooperation between the helix and the shell in the manufacturing process of the previous slow wave system. Thereby improving the manufacturing accuracy of the gap between the helix and the metal load of the slow wave system, the purpose of the present invention is to provide a method for manufacturing a helical slow wave system of a broadband traveling wave tube, so as to eliminate the impact of the slow wave system on the helix and the tube. Dependence on the manufacturing accuracy of the shell, simplifying the complex manufacturing process of the slow wave system

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