Waveguide and microwave transition circuit with adjustable working frequency

A technology of working frequency band and microstrip circuit, which is applied in the direction of circuits, waveguide devices, electrical components, etc., can solve the problems of non-adjustable working frequency band, small size tolerance of waveguide-microstrip transition circuit, etc., and achieve adjustable working frequency band , signal transmission loss is small, the effect of large circuit size tolerance
CN105261815AActive Publication Date: 2016-01-20CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
Publication Date
2016-01-20

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Abstract

The invention relates to a waveguide and microwave transition circuit with adjustable working frequency. The problem in the prior art that the dimensional tolerance of the waveguide and microwave transition circuit is small and the working frequency thereof is not adjustable is solved. A polytetrafluoroethylene (PTFE) sleeve is inserted into a metal cylindrical channel. One end of the PTFE sleeve completely contacts the lower surface of a micro-strip circuit, and the other end of the PTFE sleeve completely contacts the lower surface of a waveguide through hole. The centers of a circular through hole, an insulating through hole and the PTFE sleeve correspond to one another in the vertical direction. The front end of a metal probe is inserted into the PTFE sleeve through the circular through hole of a circular metal bonding pad, and the tail end of the metal probe is fixedly installed on the micro-strip circuit. A rectangular metal block is movably installed at the tail end of the output of the waveguide through hole, and the cross section of the rectangular metal block is of the same shape and size as that of the waveguide through hole. According to the invention, microwave signals in different frequency bands can be transmitted between a rectangular waveguide and a micro-strip transmission line. The waveguide and microwave transition circuit has the characteristics of large circuit dimension tolerance and adjustable working frequency.
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Description

technical field

[0001] The invention relates to the technical field of microwave and millimeter wave devices, in particular to a waveguide and microwave transition circuit with an adjustable working frequency band. Background technique

[0002] In microwave and millimeter wave, microstrip line is a very important transmission form in microwave integrated circuits. However, many millimeter wave test systems and device interfaces currently use rectangular waveguides. Therefore, waveguide-microstrip transition circuits are widely used. It is used in the detection of millimeter-wave monolithic integrated circuits and hybrid circuits, as well as in the connection between waveguides and planar circuits, so that there is a good matching transition between the two transmission lines. Therefore, the waveguide-microstrip transition technology has become one of the key technologies for system realization and has been extensively studied.

[0003] With the continuous development of m...

Claims

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