CN103117441A - Waveguide ring coupler - Google Patents
Waveguide ring coupler Download PDFInfo
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- CN103117441A CN103117441A CN2011103655514A CN201110365551A CN103117441A CN 103117441 A CN103117441 A CN 103117441A CN 2011103655514 A CN2011103655514 A CN 2011103655514A CN 201110365551 A CN201110365551 A CN 201110365551A CN 103117441 A CN103117441 A CN 103117441A
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Abstract
The invention discloses a waveguide ring coupler comprising a main waveguide, a coupling hole is formed in the side wall of the main waveguide, a coupling cavity is connected with the position of the coupling hole of the main waveguide, a coupling ring is arranged in the coupling cavity and connected with a coaxial port, moreover the coaxial port is arranged outside the coupling cavity, besides, transition steps are connected with the two ends of the main waveguide, and standard waveguides are arranged at one ends, far from the main waveguide, of the transition steps. Due to the fact that a main wire is of a waveguide structure, an auxiliary wire is coaxial, and a coupling mechanism is achieved by the single round hole, the waveguide ring coupler has the advantages of being simple in circuit, novel in structure, convenient to process and assemble, dispensed with tuning, moreover small in insertion loss, good in standing wave of the port, high in reliability, and specially suitable for the occasion of high-power bi-direction weak coupling degree measurement and indication.
Description
Technical field
The present invention relates to a kind of waveguide ring coupler, specifically, relate to a kind of broadband single hole waveguide ring coupler.
Background technology
Perforate can make signal from waveguide-coupled out on the wall of a waveguide, can make directional coupler thus.The guide directional coupler that generally adopts both at home and abroad adopts the hole slot coupling usually, the common waveguide wall open one or more holes seam make two microwave couplings in the adjacent waveguide.By adjusting hole seam size and position thereof can obtain the directional coupler of corresponding power distribution ratio.A major defect of this directional coupler is that its bandwidth of operation is too narrow.
Summary of the invention
The purpose of this invention is to provide a kind ofly can have good Coupling flatness and the waveguide ring coupler of directivity in the waveguide full bandwidth.
To achieve these goals, the technical solution used in the present invention is as follows: a kind of waveguide ring coupler, comprise main waveguide, described main waveguide sidewalls has coupling aperture, the coupling aperture position of described main waveguide is connected with coupling cavity, be provided with coupling loop in the described coupling cavity, described coupling loop is connected with coaxial port, and described coaxial port is arranged on the coupling cavity outside; And the two ends of described main waveguide also are connected with transition steps, and described transition steps also is provided with standard waveguide away from an end of main waveguide, and described main waveguide is connected with metal ridge at the inwall away from coupling aperture.
The axis of described coupling loop is parallel with the axis of main waveguide.
The angle that the axis of described coupling loop and the axis of main waveguide consist of is greater than 5 degree.
The shape of cross section of described main waveguide is rectangle.
The shape of cross section of described standard waveguide is rectangle.
The shape of cross section of described transition steps is rectangle.
The shape of cross section of described metal ridge is rectangle.
Described main waveguide, transition steps, standard waveguide, the size of their cross section be dull the increase successively.
Wherein said main waveguide, transition steps, standard waveguide, the size of their cross section is dull the increase successively, its implication is: when the cross section that the cross section that is of a size of A1, transition steps when the cross section of described main waveguide is of a size of A2, standard waveguide is of a size of A3, the size of their cross section increases successively, namely A1 less than A2 less than A3; Perhaps the cross section when described main waveguide is of a size of A1, the cross section of transition steps is of a size of A2, when the cross section of standard waveguide is of a size of A3, the size of their cross section satisfies monotonically increasing function: interval D is in X1＜X3, f(X1)＜f(X2)＜f(X3), X1＜X2＜X3 wherein, f(X1 wherein) be A1, f(X2) be A2, f(X3) be A3, X1 is the center point value of main waveguide, X2 is the center point value of transition steps, X3 is the center point value of standard waveguide, i.e. A1, A2, A3 along main waveguide through the transition ladder to the axis direction of standard waveguide successively monotonic increase.
Operation principle of the present invention: at first, signal is inputted from standard waveguide on main line, arrives main waveguide through transition steps, when it arrives coupling aperture, its electric field component will pass coupling aperture, be coupled on the coupling loop, and encourage the downward symmetrical in the same way electric field of direction on the both sides of coupling aperture.Because the Electric and magnetic fields of alternation is indivisible, so magnetic field correspondingly will inevitably appear in electric coupling has encouraged for coupling aperture electric field simultaneously.According to the Poynting vector the relationship between quantities, the direction in magnetic field can be by the orientation determination of main line electric field.This surface current is at coupling aperture place interrupt, and continued by displacement current, and this displacement current will make the left side of coupling loop encourage the downward electric field of direction, and its right obtains the electric field that direction makes progress, and the two opposite direction forms the reverse symmetry electric field.Equally, follow the electric field of these two reverse symmetry correspondingly magnetic field will occur simultaneously.On coupling loop, the electromagnetic field that the electric coupling of coupling aperture and magnetic coupling have been encouraged will superpose at two coaxial port place.We distinguish called after to two coaxial port at this: port four and port three; At port everywhere, because electric coupling is consistent with the electromagnetic field direction that magnetic coupling produces, so total field is sum of the two.And at port three places, because the electromagnetic field direction that electric coupling and magnetic coupling produce is opposite, so total field is the poor of the two.
In order the full bandwidth of waveguide to be had better characterisitic parameter, waveguide ring coupler of the present invention has adopted non-standard waveguide, and by a transition steps main waveguide is connected with standard waveguide, and makes it to reach coupling.The shape of coupling cavity and coupling aperture can combination in any be selected.In order to reach better directivity, we have carried out the rotation of an angle to coupling loop, but the rotation of coupling loop makes the structure complicated of this coupler, processing cost is improved, so need to determine whether according to the requirement of actual product coupling loop is rotated.
The invention has the advantages that: main line of the present invention adopts waveguiding structure, by-pass adopts coaxial form, coupling mechanism adopts single circular hole to realize, and make the bandwidth of operation of coupler wider by adding metal ridge, and the degree of coupling is more smooth, and, novel structure simple take its circuit, process and assemble be convenient, need not debugging as main feature, and insertion loss is little, the port standing wave is good, and reliability is high, is specially adapted to measurement and the indication occasion of the two-way weak coupling degree of high power.
Description of drawings
Fig. 1 is vertical schematic diagram of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to schematic diagram.
Fig. 3 is that the B-B of Fig. 1 is to schematic diagram.
Fig. 4 is that the B-B of embodiment two is to schematic diagram.
Fig. 5 is that the A-A of embodiment two is to schematic diagram.
[0022]Label among the figure is expressed as respectively: 1, main waveguide; 2, coupling aperture; 3, coupling cavity; 4, coupling loop; 5, transition steps; 6, standard waveguide; 7, coaxial port; 8, metal ridge; 61, port one; 62, port two; 71, port four; 72, port three.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment one
Such as Fig. 1, Fig. 2, shown in Figure 3, a kind of waveguide ring coupler, comprise main waveguide 1, described main waveguide 1 broadside inwall is connected with metal ridge 8, and the sidewall away from metal ridge has coupling aperture 2, and coupling aperture 2 positions of described main waveguide 1 are connected with coupling cavity 3, are provided with coupling loop 4 in the described coupling cavity 3, described coupling loop 4 is connected with coaxial port 7, and described coaxial port 7 is arranged on coupling cavity 3 outsides; And the two ends of described main waveguide 1 also are connected with transition steps 5, and described transition steps 5 also is provided with standard waveguide 6 away from an end of main waveguide 1;
The axis of coupling loop 4 is parallel with the axis of main waveguide 1.
The angle that the axis of the axis of coupling loop 4 and main waveguide 1 consists of is greater than 5 degree.
The shape of cross section of main waveguide 1 is rectangle.
The shape of cross section of standard waveguide 6 is rectangle.
The shape of cross section of transition steps 5 is rectangle.
The shape of cross section of metal ridge 8 is rectangle.
The axial cross section of described coupling cavity 3 is shaped as rectangle.
The axial cross section of described coupling aperture 2 is shaped as rectangle.
Described coupling aperture 2, coupling cavity 3 and coupling loop 4 are with respect to not rotation of main waveguide 1.
Signal enters from port one 61 positions, passes through successively standard waveguide 6, transition steps 5, main waveguide 1, derives from port 2 62, carries out coupling processing in coupling aperture 2 positions, and part signal is derived from port 4 71 and port 3 72.
Embodiment two
Such as Fig. 1, Fig. 4, shown in Figure 5, the difference of present embodiment and embodiment one is: the axial cross section of described coupling cavity 3 shapes is original shape.Described coupling aperture 2, coupling cavity 3 and coupling loop 4 are spent greater than 5 with main waveguide 1 axis direction angle.
Embodiment three
As shown in Figure 1 and Figure 2, the difference of present embodiment and embodiment one is: described coupling cavity 3 is shaped as rectangle.Described coupling aperture 2, coupling cavity 3 and coupling loop 4 are spent greater than 5 with main waveguide 1 axis direction angle.
More than the main distinction of three kinds of schemes be that main waveguide 1 bottom is added with metal ridge, that is, described main waveguide 1 is connected with metal ridge 8 away from the inwall of coupling aperture 2.The shape of coupling cavity 3 is rectangle or rectangle, and the shape of coupling aperture 2 is rectangle or rectangle, and whether coupling aperture 2, coupling cavity 3 and coupling loop 4 have an angle with main waveguide 1.In specific implementation process, the size of coupling aperture 2, the size and shape of coupling cavity 3, main waveguide 1 is with respect to the size of standard waveguide 6, and coupling cavity 3, coupling aperture 2, coupling loop 4 can be regulated arbitrarily with respect to the angle of main waveguide 1, to meet the different needs.
Claims (8)
1. waveguide ring coupler, comprise main waveguide (1), the wide wall of described main waveguide (1) has coupling aperture (2), coupling aperture (2) position of described main waveguide (1) is connected with coupling cavity (3), be provided with coupling loop (4) in the described coupling cavity (3), described coupling loop (4) is connected with coaxial port (7), and described coaxial port (7) is arranged on coupling cavity (3) outside; And the two ends of described main waveguide (1) also are connected with transition steps (5), described transition steps (5) also is provided with standard waveguide (6) away from an end of main waveguide (1), and described main waveguide (1) is connected with metal ridge (8) away from the inwall of coupling aperture (2).
2. a kind of waveguide ring coupler according to claim 1 is characterized in that, the axis of described coupling loop (4) is parallel with the axis of main waveguide (1).
3. a kind of waveguide ring coupler according to claim 1 is characterized in that, the angle that the axis of the axis of described coupling loop (4) and main waveguide (1) consists of is greater than 5 degree.
4. a kind of waveguide ring coupler according to claim 1 is characterized in that, the shape of cross section of described main waveguide (1) is rectangle.
5. a kind of waveguide ring coupler according to claim 1 is characterized in that, the shape of cross section of described metal ridge (8) is rectangle.
6. a kind of waveguide ring coupler according to claim 1 is characterized in that, the shape of cross section of described standard waveguide (6) is rectangle.
7. a kind of waveguide ring coupler according to claim 1 is characterized in that, the shape of cross section of described transition steps (5) is rectangle.
8. the described a kind of waveguide ring coupler of any one is characterized in that according to claim 1-7, described main waveguide (1), transition steps (5), standard waveguide (6), and the size of their cross section is dull the increase successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103655514A CN103117441A (en) | 2011-11-17 | 2011-11-17 | Waveguide ring coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103655514A CN103117441A (en) | 2011-11-17 | 2011-11-17 | Waveguide ring coupler |
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| Publication Number | Publication Date |
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| CN103117441A true CN103117441A (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103655514A Pending CN103117441A (en) | 2011-11-17 | 2011-11-17 | Waveguide ring coupler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129541A (en) * | 2016-07-19 | 2016-11-16 | 中国电子科技集团公司第三十八研究所 | A kind of U-shaped broadband coaxial rotary joint |
| CN111029704A (en) * | 2019-12-17 | 2020-04-17 | 电子科技大学 | Compact waveguide bidirectional coupler |
| CN112763795A (en) * | 2020-12-30 | 2021-05-07 | 中国原子能科学研究院 | Side coupling cavity measuring device and side coupling cavity measuring method for coupling cavity accelerating structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204404A (en) * | 1995-01-24 | 1996-08-09 | Shimada Phys & Chem Ind Co Ltd | Waveguide high-pass filter |
| US20040130409A1 (en) * | 2002-12-18 | 2004-07-08 | Lee Hong Yeol | Directional coupler using non-radiative dielectric waveguide |
| CN1790805A (en) * | 2005-12-06 | 2006-06-21 | 电子科技大学 | Adjustable single hole coaxial output directional coupler |
| CN202333105U (en) * | 2011-11-17 | 2012-07-11 | 成都赛纳赛德科技有限公司 | Waveguide ring coupler |
-
2011
- 2011-11-17 CN CN2011103655514A patent/CN103117441A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08204404A (en) * | 1995-01-24 | 1996-08-09 | Shimada Phys & Chem Ind Co Ltd | Waveguide high-pass filter |
| US20040130409A1 (en) * | 2002-12-18 | 2004-07-08 | Lee Hong Yeol | Directional coupler using non-radiative dielectric waveguide |
| CN1790805A (en) * | 2005-12-06 | 2006-06-21 | 电子科技大学 | Adjustable single hole coaxial output directional coupler |
| CN202333105U (en) * | 2011-11-17 | 2012-07-11 | 成都赛纳赛德科技有限公司 | Waveguide ring coupler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129541A (en) * | 2016-07-19 | 2016-11-16 | 中国电子科技集团公司第三十八研究所 | A kind of U-shaped broadband coaxial rotary joint |
| CN106129541B (en) * | 2016-07-19 | 2019-03-12 | 中国电子科技集团公司第三十八研究所 | A kind of U-shaped broadband coaxial rotary joint |
| CN111029704A (en) * | 2019-12-17 | 2020-04-17 | 电子科技大学 | Compact waveguide bidirectional coupler |
| CN112763795A (en) * | 2020-12-30 | 2021-05-07 | 中国原子能科学研究院 | Side coupling cavity measuring device and side coupling cavity measuring method for coupling cavity accelerating structure |
| CN112763795B (en) * | 2020-12-30 | 2022-11-29 | 中国原子能科学研究院 | Side coupling cavity measuring device and side coupling cavity measuring method for coupling cavity accelerating structure |
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Application publication date: 20130522 |