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Modular wave filter

A modular and filter technology, applied in the field of filters, can solve the problems of long completion cycle, long processing cycle and complex completion process, and achieve the effect of saving time, processing cost and high practical value

Inactive Publication Date: 2010-02-24
成都赛纳赛德科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The cavity filter has the advantages of low insertion loss, but there are also some defects, such as large volume, long processing cycle, high cost, etc.
In addition, the existing filter design and processing process includes calculation, drawing processing, and debugging. The completion process is very complicated and the completion cycle is very long, which cannot meet the urgent requirements of some users for delivery time.
Moreover, due to the complex internal structure of the filter, milling is usually required, which makes the processing and production cost of the filter relatively high

Method used

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Embodiment Construction

[0015] Such as Figure 1 ~ Figure 4 As shown, the modular filter includes two input and output structures 1, five coupling metal sheets 2, eight waveguide metal sheets 3 and four resonant metal sheets 4, and coupling tuning screws 5 on the coupling metal sheets 2, And the resonance tuning screw 6 located on the resonance metal sheet 4. The coupling metal sheet 2, the waveguide metal sheet 3 and the resonant metal sheet 4 are all modular diaphragms. The two input and output structures 1 are respectively arranged at both ends of the modular filter, and are respectively connected to the inside of the modular filter through coupling metal sheets 2 . Inside the modular filter, starting from the coupling metal sheet 2 at the input end, the coupling metal sheet 2, waveguide metal sheet 3, resonant metal sheet 4, and waveguide metal sheet 3 are sequentially connected in series until the last waveguide metal sheet The slice 3 is connected to the input-output structure 1 at the output...

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Abstract

The present invention discloses a modular wave filter which belongs to the filed of microwave communication and mainly settles the problems of high machining cost and long period in the prior art. Themodular wave filter comprises an input / output structure, a coupling metal sheet, a waveguide metal sheet, a resonant metal sheet, and a coupling turning screw positioned on the coupling metal sheet and a resonant turning screw positioned on the resonant metal sheet, wherein, the coupling metal sheet, the waveguide metal sheet and the resonant turning metal sheet are modular membranes which are designed beforehand. The modular wave filter has advantages of simple structure and convenient fabrication, can complete the designing and fabrication of the wave filter requested by the user, and is mainly used for the systems of microwave communication, radar, missile guidance, etc.

Description

technical field [0001] The invention relates to a filter, in particular to a modular filter. Background technique [0002] Microwave filters are an extremely important part of many modern microwave and millimeter wave systems, and their performance often directly affects the performance of the entire system. Due to the increasing shortage of radio communication frequency resources, the frequency interval allocated to various communication systems is getting smaller and smaller, which puts forward higher and higher requirements for passive components, especially the filters or duplexers. Improving the technical index of the filter through various methods has become an important topic of current research. Existing microwave filters are mainly divided into waveguide, stripline, and dielectric cavity filters. The cavity filter has the advantages of low insertion loss, but there are also some defects, such as large volume, long processing cycle, and high cost. In addition, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20
Inventor 王清源李海洋
Owner 成都赛纳赛德科技有限公司
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