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: 2016-01-20
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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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
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[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 with 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 the upper part of the metal cavity structure 1 is horizontally (horizontally) provided with a cavity 9, the cavity 9 For connecting microstrip lines, a waveguide through hole 5 is provided in the middle (horizontally) of the metal cavity structure 1, and the waveguide through hole 5 is used for connecting a rectangular waveguide. The metal cylindrical channel 4 is arranged longitudinally (vertically) on the metal cavity structure 1, the metal cylindrical channel 4, the waveguide through hole 5 and the cavity 9 can be solidif...
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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.
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...
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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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