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Coupler having cavity

A coupler and cavity technology, which is applied in the field of couplers, can solve the problems of high processing precision, high production cost, and high assembly requirements, and achieve the effects of reducing processing precision, little change in standing wave, and small fluctuation range

Inactive Publication Date: 2015-09-09
HEFEI JIARUILIN ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Coupler having cavity

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Embodiment Construction

[0011] refer to figure 1 , a coupler with a cavity, 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 coupling straight rod 2 and the coupling bending rod are arranged in the cavity of the housing 1 3. Both ends of the coupling straight rod 2 can be connected to the outside through the casing 1, one end of the coupling curved rod 3 can be connected to the outside through the casing 1, and the other end is connected to the resistor 4. The coupling straight rod 2 and the coupling curved rod 3 are respectively provided with a debugging block 5 .

[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 couplin...

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Abstract

The invention discloses a coupler having a cavity, relating to the technical field of couplers. The coupler having the cavity 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 coupler having the cavity disclosed by the utility model adopts a coupling strip line four-stage design and can not only meet the requirements of an ordinary cylindrical coupler for covering bandwidth, but also reduce the precision, assembly requirements and production cost which are required by processing during production processes.

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. Contents of the invention [0003] The object of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/18
Inventor 岳朝风
Owner HEFEI JIARUILIN ELECTRONICS TECH
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