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Four-stage band line cavity directional coupler

A directional coupler and cavity technology, applied in the field of couplers, can solve the problems of high production cost, high machining accuracy, and high assembly requirements, and achieve the effects of small changes in standing waves, reduced machining accuracy, and small fluctuation range.

Inactive Publication Date: 2015-07-29
合肥凯蒙新材料有限公司
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AI Technical Summary

Problems solved by technology

[0002] The frequency of the widely used cavity directional coupler is between 800-2500MHz, which covers the main frequency of mobile communication, and also covers the general frequency of 3G. Due to the popularization of digital TV, the original analog signal gradually cancels the frequency of 700MHz. The frequency is likely to be used in 3G products. If you want to cover the whole band, you need a coupler and a power splitter with a wider bandwidth, so that you can cover more frequency bands. The existing couplers generally use columnar coupling. Although it can cover more frequency bands, it greatly limits the application of this type of product due to its shortcomings such as high production cost, high processing precision, and high assembly requirements.

Method used

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  • Four-stage band line cavity directional coupler

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Embodiment Construction

[0011] refer to figure 1 , a four-stage stripline cavity directional coupler, which is composed of a housing 1, a coupling straight rod 2, a coupling curved rod 3, a resistor 4, and a debugging block 5, and the housing 1 cavity is provided with a coupling straight rod 2, The coupling curved rod 3, both ends of the coupling straight rod 2 can be connected to the outside through the shell 1, one end of the coupling curved rod 3 can be connected to the outside through the shell 1, and the other end is connected to the resistor 4, the coupling straight rod 2, A debugging block 5 is respectively arranged on the coupling bending rods 3 .

[0012] The straight coupling rod 2 and the curved coupling rod 3 are respectively composed of a first-level coupling area 2.1, a second-level coupling area 2.2, a third-level coupling area 2.3, and a fourth-level coupling area 2.4.

[0013] The debugging block 5 is respectively arranged at the front end of the third-level coupling area 2.3 of the...

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Abstract

The invention discloses a four-stage band line cavity directional coupler and relates to the technical field of couplers. The four-stage band line cavity directional coupler comprises a housing, a coupling straight bar, a coupling curved bar, a resistor and a debugging block, wherein the coupling straight bar and the coupling curved bar are arranged in a cavity of the housing; the two ends of the coupling straight bar are connected with the outside through the housing; one end of the coupling curved bar is connected with the outside through the housing, and the other end of the coupling curved bar is connected with the resistor. The four-stage band line cavity directional coupler adopts a coupling band line four-stage design and can not only meet the requirements of an ordinary cylindrical coupler on the coverage bandwidth, but also reduce the processing requirement precision, the assembly requirements and the production cost in the production process.

Description

Technical field: [0001] The invention relates to the technical field of couplers, in particular to an air cavity stripline coupler. Background technique: [0002] The frequency of the widely used cavity directional coupler is between 800-2500MHz, which covers the main frequency of mobile communication, and also covers the general frequency of 3G. Due to the popularization of digital TV, the original analog signal gradually cancels the frequency of 700MHz. The frequency is likely to be used in 3G products. If you want to cover the whole band, you need a coupler and a power splitter with a wider bandwidth, so that you can cover more frequency bands. The existing couplers generally use columnar coupling. Although the design can cover more frequency bands, its disadvantages such as high production cost, high processing precision, and high assembly requirements greatly limit the application of this type of product. Invention content: [0003] The purpose of the present inv...

Claims

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Application Information

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IPC IPC(8): H01P5/18
Inventor 不公告发明人
Owner 合肥凯蒙新材料有限公司
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