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Rectangular coaxial line directional coupler

A directional coupler, coaxial line technology, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve the problems of high insertion loss, reduced directivity, narrow bandwidth, etc., and achieve large power capacity and ultra-wide working bandwidth. , the effect of low insertion loss

Inactive Publication Date: 2014-08-06
成都赛纳赛德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional single-hole directional coupler has some advantages: such as simple structure, few parameters, and it is more convenient to design; but it also has some disadvantages: such as narrow bandwidth and poor directivity, it is only suitable for working at the design frequency, and it deviates from this frequency , the directionality will decrease
[0006] Although the traditional porous directional coupler can achieve a very wide bandwidth, it also has some disadvantages, such as large volume, high processing precision requirements, high insertion loss, especially in the millimeter-wave terahertz band, the high insertion loss makes the The device loses its use value. This motivates us to design a new type of directional coupler that can overcome these shortcomings

Method used

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  • Rectangular coaxial line directional coupler
  • Rectangular coaxial line directional coupler
  • Rectangular coaxial line directional coupler

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Effect test

Embodiment 1

[0039] Such as image 3 , 4 As shown, this embodiment includes a main rectangular coaxial line 1 and a secondary rectangular coaxial line 2, the main rectangular coaxial line 1 is a microwave main channel, and the secondary rectangular coaxial line 2 is a sampling signal channel; the main rectangular coaxial line 1 and the secondary rectangular coaxial line 2 are isolated from each other, and there is a coupling hole 3 including a hollow coupling tube 32 attached to the side wall of the main rectangular coaxial line 1 or\and the side wall of the secondary rectangular coaxial line 2, the hollow coupling tube 32 Close to the side wall of the rectangular coaxial line 1 is connected a coupling cavity 31 with openings at three ends. The coupling cavity 31 is connected to the hollow coupling tube 32. The coupling cavity 31 is located between the main rectangular coaxial line 1 and the secondary rectangular coaxial line 2 and is connected to the Main rectangular coaxial cable 1 and ...

Embodiment 2

[0041] Such as Figure 5 As shown, the difference from the first embodiment is that the main rectangular coaxial line 1 and the secondary rectangular coaxial line 2 are parallel and have no included angle. The coupling holes 3 are only partly inside the main rectangular coaxial line 1 and the sub-rectangular coaxial line 2, and partly outside. No columnar metal structure 7 is arranged in the coupling hole 3 .

Embodiment 3

[0043] Such as Figure 6 As shown, the difference from the first embodiment is that the main rectangular coaxial line 1 and the secondary rectangular coaxial line 2 communicate through two coupling holes 3, and the centers of the two coupling holes 3 are respectively located on the main rectangular coaxial line 1 and the secondary rectangular coaxial line. Near the two opposite vertices of the parallelogram formed by the intersection of the rectangular coaxial lines 2.

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Abstract

The present invention discloses the rectangular coaxial -oriented orientation coupling, including the main rectangular coaxial coaxial of the microwave main channel and the axis coaxial coaxial of the sample signal channel, and the coupling hole as a coupling channel;The rectangular coaxial isolation isolate each other; the main rectangular coaxial connection is connected to the co -shaft of the co -shaped rectangle through 1 or 2 coupling holes.The hollow coupling tube of the axis side wall, the lateral wall of the hollow coupling tube is connected to the coupling cavity of the three -terminal opening of the rectangular coaxial coaxial.Between the line and the main rectangular coaxial and the axis of the axis.The advantages of the present invention are that the structure is compact, the ultra -width operating bandwidth, the power capacity is large, the insertion loss is low. Compared with ordinary porous orientation coupled, it has outstanding advantages in low interpolation.

Description

Technical field [0001] The invention involves the rectangular coaxial campaign -oriented coupling. Specifically, it is a rectangular coaxial cupiders that involve a coupling using single or dual -hole coupling. Background technique [0002] Band lines and microdes can constitute directional coupling; therefore, there are many types of orientation couplers, which are very different from the structure of the structure. However, from their coupling mechanismsCoupling, branches coupling, and matching dual T. [0003] Before the early 1950s, almost all microwave devices used metal waveguide and waveguide circuits. At that time, the orientation couplers were mostly waveguide small holes coupling orientation coupling.Levy and others have also made a lot of contributions. [0004] With the development of aviation and aerospace technology, microwave circuits and systems are required to be miniaturized, lightweight, and reliable performance. Therefore, Sinks, common surface waveguide, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/18
Inventor 王清源谭宜成
Owner 成都赛纳赛德科技有限公司