Strip Transmission Line Precise Positioning Mechanism for Microwave Mechanical Switch
A strip transmission line and mechanical switch technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of microwave transmission characteristics, poor stability, and low positioning accuracy, so as to improve microwave characteristics and switching repeatability, and improve positioning The effect of precision
Active Publication Date: 2017-12-08
四川欣科奥电子科技有限公司
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Problems solved by technology
[0004] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a strip transmission line precision positioning mechanism for microwave mechanical switches, which is used to solve the problem of microwave transmission characteristics and problems caused by the low positioning accuracy of the existing strip transmission line. To solve the problem of poor stability, the strip transmission line has good repeat positioning accuracy and microwave transmission characteristics
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Embodiment Construction
[0016] like figure 1 , 2 As shown, the present invention provides a strip transmission line precision positioning mechanism for a microwave mechanical switch, which is mainly embodied in the guide column 1, the positioning round hole 2, the positioning oblong hole 7, and the sheet-shaped central inner conductor 8.
[0017] like figure 1 As shown, the positioning round hole 2 (limited position); represents the gap 3 for eliminating the hole pitch error; 4 represents the direction of translational movement; the precision fit gap 5; the tolerance hole pitch error gap 6; the positioning oblong hole 7 (limited angle).
[0018] like figure 2 As shown, the guide post passes through the positioning round hole 2 and the positioning oblong hole 7 on the sheet-shaped central inner conductor 8, and the diameter of the guide post 1 is closely matched with the diameter of the positioning round hole 2 and the width of the oblong hole 7 with a small gap.
[0019] like image 3 As shown, ...
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The invention discloses a band-shaped transmission line precision positioning technology, for solving the problems of quite poor microwave transmission characteristics and stability which are caused by not high positioning precision by use of a conventional band-shaped transmission line, and help the band-shaped transmission line to realize good repeat positioning precision and microwave transmission characteristics. The axis of a center conductor is provided with a positioning circular hole and a long circular hole, and a guiding reference column is installed on the side wall of a rectangular outer conductor. According to the invention, the diameter of a guide column is respectively in precision small-clearance fit with the diameter of the circular hole and the width dimension of the long circular hole, and since the long circular hole is introduced, the positioning mode of the center conductor is that the circular hole limits a position and the long circular hole limits an angle, and over positioning is not generated any more. The cooperation between the width of the long circular hole and the guide column only limits the rotation of the center conductor, influences exerted by other processing errors are eliminated, and precision clearance fit can also be employed. Therefore, through the combined positioning structure of the circular hole and the long circular hole, the positioning precision of the center conductor can be greatly improved, and at the same time, the smooth motion of the center conductor can be maintained, thus the microwave characteristics and the switching repetition precision of the band-shaped transmission line are improved.
Description
technical field [0001] The invention relates to a microwave switch, in particular to a strip transmission line precision positioning mechanism of a microwave mechanical switch. Background technique [0002] As a microwave transmission line, the strip transmission line has the advantages of large power capacity and low loss. Because its center conductor is flat, it is very easy to realize mutual overlap with the inner conductor of the coaxial transmission line and the center conductor of the strip transmission line, and it is suitable for microwave transmission. The influence of characteristics is small, so it is very suitable for radio frequency path switching components such as microwave mechanical switches to realize the switching of internal microwave transmission paths. The strip transmission line is composed of a rectangular outer conductor and a sheet-shaped central inner conductor. In order to realize the switching of the internal microwave transmission path, the shee...
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IPC IPC(8): H01P1/12
Inventor 夏蓉李如光谢锋
Owner 四川欣科奥电子科技有限公司
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