High Performance Ribbon Transmission Guide Mechanism for Microwave Mechanical Switches

Abstract

The invention mainly solves the problems of low guiding precision and poor microwave high-frequency transmission characteristics of the conductor guiding mechanism in the sheet-shaped center of the existing strip-shaped transmission line. Two guide holes are opened on the axis of the inner conductor in the sheet-shaped center, and the insulator guide post passes through the guide holes, and the theoretical diameter is the same as that of the guide holes, so that the lateral and axial movement directions of the inner conductor in the sheet-shaped center can be restricted. The guide post is moved from the edge of the conductor in the center of the sheet to the axis, which eliminates the influence of the guide post on the dielectric constant of the filling medium. Therefore, setting the guide column at the axis of the conductor in the center of the sheet can greatly reduce the deterioration of the microwave characteristics of the strip transmission line. In addition, the guide column material can be selected from high-strength and high-temperature-resistant plastic materials with good wear resistance and low thermal expansion coefficient. Using this type of material can greatly reduce the matching gap between the guide column and the conductor guide hole in the sheet-shaped center, significantly The guiding precision of the guiding mechanism is improved. Therefore, the microwave transmission characteristics of the strip 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 of a microwave mechanical switch. Background technique [0002] As a microwave transmission line, the strip transmission line has the advantages of low transmission loss and large power capacity. Because the central inner 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 sheet-shaped central inner conductor translates along...

AI Technical Summary

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 conductor guide mechanism in the sheet center of the existing strip transmission line, and high microwave The problem of poor frequency transmission characteristics, thereby improving the microwave signal transmission quality of the strip transmission line

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