High-performance band-shaped transmission line guide mechanism
A strip transmission line, high-performance technology, applied in the direction of waveguide, waveguide-type devices, circuits, etc., can solve the problems of poor microwave high-frequency transmission characteristics, low guidance accuracy, etc., to reduce the influence of microwave characteristic impedance, improve the guide Improves accuracy and prolongs mechanical life
Active Publication Date: 2014-10-22
陕西索飞电子科技有限公司
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Problems solved by technology
[0004] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, to provide a high-performance strip transmission guide mechanism, to solve the problem of low guiding precision of the center conductor guide mechanism of the existing strip transmission line, and microwave high-frequency transmission characteristics Poor problem, thereby improving the microwave signal transmission quality of the stripline transmission line
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[0015] Such as figure 1 , 2 As shown, the present invention provides a high-performance strip transmission line guiding mechanism, which is mainly embodied in 1 guiding post, 2 guiding holes, and 6 sheet-shaped central conductors.
[0016] Such as figure 1 As shown, 1. The guide post is made of high-temperature-resistant plastic with good wear resistance and low thermal expansion coefficient; 3. The thermal expansion gap is reduced; 4. The guide hole and guide post; 5. The axis of the central conductor.
[0017] Such as figure 2 As shown, 1 guide post passes through 2 guide holes on the 6 sheet center conductors.
[0018] Such as image 3 As shown, 7 represents lateral movement; 8 represents the rectangular outer conductor; 9 represents translation between the center of the rectangular external conductor and the sidewall; 10 represents the common symmetrical center.
[0019] Such as Figure 5 As shown, 11 represents the thermal expansion gap.
[0020] The content that ...
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The invention discloses a high-performance band-shaped transmission line guide mechanism, for mainly solving the problems of not high guide precision and quite poor microwave high frequency transmission characteristics of a conventional band-shaped transmission line center conductor guide mechanism and improving the microwave signal transmission quality of a band-shaped transmission line. A center conductor axis is provided with two guide holes, insulator guide columns pass through the guide holes, and theoretically, the diameters of the insulator guide columns are the same as the diameters of the guide holes, such that a center conductor can be restricted in two motion directions, i.e., a horizontal motion direction and an axial motion direction. The guide columns are moved to the axis from the edge of the center conductor, and the influence exerted by the guide columns on the dielectric constant of a filling medium is eliminated. Therefore, by arranging the guide columns at the center conductor axis, the deterioration of the microwave characteristics of the band-shaped transmission line can be substantially decreased. Besides, a high-strength high-temperature-resistant plastic material which is good in wear resistance and low in thermal expansion coefficient can be selected as the material of the guide columns, and adoption of such a material can enable the fit clearance between the guide columns and the guide holes of the center conductor to be substantially reduced and remarkably improves the guide precision of the guide mechanism, thus the microwave transmission characteristics of the band-shaped transmission line can be further improved.
Description
technical field [0001] The invention relates to a microwave switch, in particular to a high-performance strip transmission line guiding mechanism. Background technique [0002] As a microwave transmission line, the strip transmission line has the advantages of low transmission loss and large power capacity. Because its central conductor is a flat sheet, it is easy to realize overlapping with coaxial transmission lines and similar transmission lines in physical structure. Therefore, it is very suitable for microwave control components such as microwave mechanical switches that need to switch microwave signal transmission paths. The strip transmission line is composed of a rectangular outer conductor and a sheet-shaped central inner conductor, and the two are symmetrically distributed along a common center of symmetry. During the switching process of the signal transmission path, the central inner conductor translates along the center of symmetry between the center of the re...
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IPC IPC(8): H01P1/10H01P3/08
Inventor 孙晓峰
Owner 陕西索飞电子科技有限公司
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