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A 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

Active Publication Date: 2018-03-20
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of the waveguide-microstrip transition circuit in the prior art with small size tolerance and non-adjustable working frequency band, and provide a waveguide and microwave transition circuit with adjustable working frequency band to solve the above problems

Method used

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  • A waveguide and microwave transition circuit with adjustable working frequency
  • A waveguide and microwave transition circuit with adjustable working frequency
  • A waveguide and microwave transition circuit with adjustable working frequency

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Embodiment Construction

[0021] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0022] Such as figure 1 and figure 2 As shown, a waveguide and microwave transition circuit with an adjustable working frequency band according to the present invention includes a metal cavity structure 1, and a cavity 9 is arranged horizontally (horizontally) on the upper part of the metal cavity structure 1. The upper part is There is a critical position coincident with the upper surface of the metal cavity structure. The cavity 9 is used to connect the microstrip line. The middle part of the metal cavity structure 1 is horizontally (horizontally) provided with a waveguide through hole 5, and the waveguide through hole 5 is used to connect the rectangular waveguide. . The metal cylindrical channel 4 is arranged longitudinally (ve...

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Abstract

The invention relates to a waveguide and microwave transition circuit with the function of adjustable working frequency band, which solves the defects of small size tolerance of the waveguide-microstrip transition circuit and non-adjustable working frequency band compared with the prior art. A PTFE sleeve is inserted into the metal cylindrical channel of the present invention, one end of the PTFE sleeve is in full contact with the lower surface of the microstrip circuit, the other end of the PTFE sleeve is in full contact with the lower surface of the waveguide through hole, and the circular through hole, insulation The centers of the through hole and the PTFE sleeve correspond up and down. The front end of the metal probe is inserted into the PTFE sleeve through the circular through hole of the circular metal pad, and the tail end of the metal probe is fixedly installed on the microstrip circuit; rectangular The metal block is movably installed at the output end of the waveguide through hole, and the shape and size of the cross section of the rectangular metal block are the same as the cross section of the waveguide through hole. The invention can realize the transmission of microwave signals of different frequency bands between the rectangular waveguide and the microstrip transmission line, and has the outstanding characteristics of large circuit size tolerance and adjustable working frequency band.

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 mic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/107
Inventor 章宏李娇娇王自力朱小亮王生旺张士刚陆勤龙张广场宋鹏
Owner CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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