A method of manufacturing a rectangular comb-shaped slow-wave structure
A technology of slow wave structure and manufacturing method, which is applied in the manufacture of discharge tubes/lamps, cold cathode manufacture, electrode system manufacture, etc.
Active Publication Date: 2017-08-25
INST OF ELECTRONICS CHINESE ACAD OF SCI
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It should be pointed out that there is no slow wave structure that can work in the frequency band above 0.2THz successfully in China at present, so the present invention has important application value
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[0029] 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.
[0030] The meanings of each component symbol in the accompanying drawings are as follows: figure 2 : 1-left support positioning edge, 2-right support positioning edge, 3-reserved area of rectangular comb grid, L-length, W-width, T-thickness. image 3 : 1-left support positioning edge, 2-right support positioning edge, 4-rectangular channel, 5-rectangular grid beam. Figure 4 : 1-left support positioning edge, 2-right support positioning edge, 6-rectangular channel, 7-rectangular grid beam. Figure 5 :8-Edge residual glitch. Figure 6 : L-length, W-width, D-thickness. Figure 7 : 9-upper rectangular comb bottom plate, 10-upper rectangular comb grid. Figure 8 : 11-lower rectangular comb bottom plate, 12-lower rectan...
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The invention relates to a method for manufacturing a double-row or single-row rectangular comb-shaped slow-wave structure. The main steps are: manufacturing the upper and lower comb grid blanks, the upper and lower rectangular comb bottom plates and the tubular casing for the rectangular comb structure; using the laser cutting method to manufacture the upper and lower rectangular comb grids on the upper and lower comb grid blanks; separate the upper and lower rectangular comb grids. It is welded on the upper and lower rectangular comb bottom plates to form an upper and lower rectangular comb structure without electron injection channels; a semicircular electron injection channel is fabricated on the upper and lower rectangular comb structures without electron injection channels to form an upper and lower rectangular comb structure; finally, the upper and lower rectangular combs are The structure is inserted into the double-row rectangular comb structure tube shell to make a double-row rectangular comb-shaped slow wave structure; or only the lower rectangular comb structure is inserted into the single-row rectangular comb structure tube shell to make a single-row rectangular comb-shaped slow wave structure structure. The rectangular comb-shaped slow wave structure manufactured by the invention can be used for microwave, millimeter wave, submillimeter wave and even THz traveling wave tube, return wave tube, distributed action klystron (EIK) and the like.
Description
technical field [0001] The invention belongs to the field of vacuum electronic device technology and terahertz technology, and in particular relates to a method for manufacturing a double-row or single-row rectangular comb-shaped slow-wave structure. Background technique [0002] In recent years, people's research in the THz field has aroused great enthusiasm both at home and abroad. Terahertz (Tera-Hertz, THz for short, 1THz=1012Hz) frequency band is between microwave and infrared. There are many definitions of its specific frequency range: one of them refers to the frequency range of From 3000μm to 30μm; according to the definition of wavelength, it is considered to represent electromagnetic waves with a wavelength of 1mm to 100μm, and the corresponding frequency is 300GHz to 3000GHz, so THz waves can also be called submillimeter waves. [0003] No matter which definition is adopted, the position of THz waves in the electromagnetic spectrum is very important. The long-wa...
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IPC IPC(8): H01J9/00
Inventor 王自成胡京军李现霞刘青伦李海强徐安玉
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI