Band-shaped transmission line precision positioning technology
A strip transmission line and precise positioning technology, which is applied in the direction of circuits, waveguide devices, electrical components, etc., can solve the problems of microwave transmission characteristics and 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: 2014-10-22
四川欣科奥电子科技有限公司
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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 and provide a precision positioning technology for strip transmission lines, which is used to solve the poor microwave transmission characteristics and stability caused by the low positioning accuracy of existing strip transmission lines The problem of realizing the strip transmission line has good repeat positioning accuracy and microwave transmission characteristics
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Embodiment Construction
[0016] Such as figure 1 , 2 As shown, the present invention provides a strip transmission line precision positioning technology, which is mainly embodied in 1 guide column, 2 positioning round holes, 7 positioning oblong holes, and 8 sheet-shaped central conductors.
[0017] Such as figure 1 As shown, 2 locates the round hole (limited position); 3 indicates the elimination of hole distance error clearance; 4 indicates the direction of translational movement; 5 indicates the precision fit clearance; 6 accommodates the hole distance error clearance;
[0018] Such as figure 2 As shown, 1 guide column passes through 2 positioning circular holes and 7 positioning oblong holes on the 8 sheet-shaped central conductors, and the diameter of 1 guide column is precisely matched with the diameter of 2 circular holes and the width of 7 oblong holes with small gaps.
[0019] Such as image 3 As shown, 9 represents lateral movement; 8 sheet-shaped central conductor; 10 rectangular outer...
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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 technology. 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 central conductor needs to be freely...
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Inventor 孙晓峰
Owner 四川欣科奥电子科技有限公司