CN202308253U - Waveguide ring coupler - Google Patents
Waveguide ring coupler Download PDFInfo
- Publication number
- CN202308253U CN202308253U CN 201120399287 CN201120399287U CN202308253U CN 202308253 U CN202308253 U CN 202308253U CN 201120399287 CN201120399287 CN 201120399287 CN 201120399287 U CN201120399287 U CN 201120399287U CN 202308253 U CN202308253 U CN 202308253U
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- coupling
- waveguide
- main
- loop
- main waveguide
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Abstract
The utility model discloses a waveguide ring coupler which comprises a main waveguide, wherein the side wall of the main waveguide is provided with a coupling hole, a coupling cavity is connected to the coupling hole of the main waveguide and is internally provided with a coupling ring, the coupling ring is provided with a coaxial port in a connecting manner, the coaxial port is arranged outside the coupling cavity; two ends of the main waveguide are provided with transition steps in a connecting manner, one ends of the transition steps, which are far away from the main waveguide, are also provided with standard waveguides. The utility model has the advantages that a waveguide structure is adopted in a main line, a coaxial form is adopted in an auxiliary line, a coupling mechanism is realized by adopting the single circular hole; and the waveguide ring coupler has the main characteristics of simple circuit, novel structure, convenience for processing and assembling and no debugging, has the advantages of little insertion loss, good port standing waves and high reliability, and is especially suitable for high-power bidirectional weak coupling degree measurement and indication occasions.
Description
Technical field
The utility model relates to a kind of waveguide loop coupling device, specifically, relates to a kind of broadband single hole waveguide loop coupling device.
Background technology
Perforate can make signal come out from waveguide-coupled 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, on the common waveguide wall, opens one or more holes seam and makes two microwave couplings in the adjacent waveguide.Can obtain the directional coupler of corresponding power distribution ratio through adjustment hole seam size and position thereof.A major defect of this directional coupler is that its bandwidth of operation is too narrow.
The utility model content
The purpose of the utility model provides a kind of waveguide loop coupling device that good coupling flatness and directivity can be arranged in the waveguide full bandwidth.
To achieve these goals; The technical scheme that the utility model adopts is following: a kind of waveguide loop coupling device, comprise main waveguide, and said main waveguide sidewalls has coupling aperture; The coupling aperture position of said main waveguide is connected with coupling cavity; Be provided with coupling loop in the said coupling cavity, said coupling loop is connected with coaxial, and said coaxial is arranged on the coupling cavity outside; And the two ends of said main waveguide also are connected with transition steps, and said transition steps also is provided with standard waveguide away from an end of main waveguide.
The axis of said coupling loop and the parallel axes of main waveguide.
The angle that the axis of said coupling loop and the axis of main waveguide constitute is greater than 5 degree.
The shape of cross section of said main waveguide is circular.
The shape of cross section of said standard waveguide is circular.
The shape of cross section of said transition steps is circular.
Said main waveguide, transition steps, standard waveguide, the size of their cross section are dull successively to increase.
Wherein said main waveguide, transition steps, standard waveguide; The size of their cross section is dull successively to be increased; 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 said main waveguide is of a size of A2, standard waveguide is of a size of A3; The size of their cross section increases successively, promptly A1 less than A2 less than A3; When the cross section that the cross section that perhaps is of a size of A1, transition steps when the cross section of said main waveguide is of a size of A2, standard waveguide was of a size of A3, the size of their cross section satisfies monotonically increasing function: interval D was in X1＜X3, f (X1)＜f (X2)＜f (X3); X1＜X2＜X3 wherein; Wherein f (X1) is A1, and f (X2) is A2, and f (X3) is A3; X1 is the center point value of main waveguide; X2 is the center point value of transition steps, and X3 is the center point value of standard waveguide, promptly A1, A2, A3 along main waveguide through the transition ladder to the axis direction of standard waveguide monotonic increase successively.
The operation principle of the utility model: at first; Signal is imported from standard waveguide on main line; Arrive 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 encouraged the symmetrical in the same way electric field that is directed downwards on the both sides of coupling aperture.Because the electric field and the magnetic field of alternation are indivisible, so corresponding with it magnetic field will inevitably appear in electric coupling has encouraged for coupling aperture electric field simultaneously.According to the relation of Poynting vector, the direction in magnetic field can be confirmed by the direction of main line electric field.This surface current interrupts at the coupling aperture place, and is continued by displacement current, and this displacement current will make the left side of coupling loop encourage the electric field that is directed downwards, and its right obtains the electric field that direction makes progress, and the two is in the opposite direction, forms the reverse symmetry electric field.Equally, follow the electric field of these two reverse symmetry will occur corresponding with it magnetic field simultaneously.On coupling loop, the electromagnetic field that the electric coupling of coupling aperture and magnetic coupling have been encouraged will superpose at its two coaxial places.We distinguish called after to two coaxial at this: port four and port three; At port everywhere, because the electric coupling electromagnetic field direction that coupling is produced with magnetic is consistent, total field is a sum of the two.And at port three places, because the electromagnetic field direction that electric coupling and magnetic coupling are produced is opposite, so total field is the poor of the two.
In order the full bandwidth of waveguide to be had better characterisitic parameter, the waveguide loop coupling device of the utility model has adopted non-standard waveguide, and through 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 of this coupler become complicated, processing cost is improved, so need determine whether according to the requirement of actual product coupling loop is rotated.
The advantage of the utility model is: the main line of the utility model adopts waveguiding structure; By-pass adopts coaxial form, and coupling mechanism adopts single circular hole to realize,, novel structure simple with its circuit, process and assemble be convenient, need not debugging is main feature; And it is little to insert loss; The port standing wave is good, and reliability is high, is specially adapted to the measurement and the indication occasion of the two-way weak coupling degree of high power.
Description of drawings
Fig. 1 is vertical sketch map of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sketch map.
Fig. 3 is that the B-B of Fig. 1 is to sketch map.
Fig. 4 is that the B-B of embodiment two is to sketch map.
Fig. 5 is that the B-B of embodiment three is to sketch map.
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; 61, port one; 62, port two; 71, port four; 72, port three.
Embodiment
Embodiment one
Like Fig. 1, Fig. 2, shown in Figure 3; A kind of waveguide loop coupling device comprises main waveguide 1, and said main waveguide 1 sidewall has coupling aperture 2; Coupling aperture 2 positions of said main waveguide 1 are connected with coupling cavity 3; Be provided with coupling loop 4 in the said coupling cavity 3, said coupling loop 4 is connected with coaxial 7, and said coaxial 7 is arranged on coupling cavity 3 outsides; And the two ends of said main waveguide 1 also are connected with transition steps 5, and said transition steps 5 also is provided with standard waveguide 6 away from an end of main waveguide 1.
The parallel axes of the axis of coupling loop 4 and main waveguide 1.
The angle that the axis of the axis of coupling loop 4 and main waveguide 1 constitutes is greater than 5 degree.
The shape of cross section of main waveguide 1 is circular.
The shape of cross section of standard waveguide 6 is circular.
The shape of cross section of transition steps 5 is circular.
Said coupling cavity 3 be shaped as rectangle.
Said coupling aperture 2 be shaped as rectangle.
Said coupling aperture 2, coupling cavity 3 and coupling loop 4 are with respect to not rotation of main waveguide 1.
Signal gets into from port one 61 positions, passes through standard waveguide 6, transition steps 5, main waveguide 1 successively, derive from port 2 62, and the processing that is coupled in coupling aperture 2 positions, part signal is derived from port 4 71 and port 3 72.
Embodiment two
Like Fig. 1, Fig. 2, shown in Figure 4, the difference of present embodiment and embodiment one is: said coupling aperture 2 is shaped as circle.Said coupling aperture 2, coupling cavity 3 and coupling loop 4 and main waveguide 1 axis direction angle are greater than 5 degree.
Embodiment three
Like Fig. 1, Fig. 2, shown in Figure 5, the difference of present embodiment and embodiment one is: said coupling cavity 3 is shaped as circle.Said coupling aperture 2, coupling cavity 3 and coupling loop 4 and main waveguide 1 axis direction angle are greater than 5 degree.
More than the main distinction of three kinds of schemes be that the shape of coupling cavity 3 is rectangle or circle, the shape of coupling aperture 2 is rectangle or circle, whether coupling aperture 2, coupling cavity 3 and coupling loop 4 have an angle with main waveguide 1.In the practical implementation process, the size of coupling aperture 2, the size of coupling cavity 3 and shape, 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 (7)
1. waveguide loop coupling device; Comprise main waveguide (1); Said main waveguide (1) sidewall has coupling aperture (2), and coupling aperture (2) position of said main waveguide (1) is connected with coupling cavity (3), is provided with coupling loop (4) in the said coupling cavity (3); Said coupling loop (4) is connected with coaxial (7), and said coaxial (7) is arranged on coupling cavity (3) outside; And the two ends of said main waveguide (1) also are connected with transition steps (5), and said transition steps (5) also is provided with standard waveguide (6) away from an end of main waveguide (1).
2. a kind of waveguide loop coupling device according to claim 1 is characterized in that, the parallel axes of the axis of said coupling loop (4) and main waveguide (1).
3. a kind of waveguide loop coupling device according to claim 1 is characterized in that, the angle that the axis of the axis of said coupling loop (4) and main waveguide (1) constitutes is greater than 5 degree.
4. a kind of waveguide loop coupling device according to claim 1 is characterized in that, the shape of cross section of said main waveguide (1) is circular.
5. a kind of waveguide loop coupling device according to claim 1 is characterized in that, the shape of cross section of said standard waveguide (6) is circular.
6. a kind of waveguide loop coupling device according to claim 1 is characterized in that, the shape of cross section of said transition steps (5) is circular.
7. according to any described a kind of waveguide loop coupling device among the claim 1-6, it is characterized in that, said main waveguide (1), transition steps (5), standard waveguide (6), the size of their cross section is dull successively to be increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120399287 CN202308253U (en) | 2011-10-19 | 2011-10-19 | Waveguide ring coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120399287 CN202308253U (en) | 2011-10-19 | 2011-10-19 | Waveguide ring coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308253U true CN202308253U (en) | 2012-07-04 |
Family
ID=46377080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120399287 Expired - Fee Related CN202308253U (en) | 2011-10-19 | 2011-10-19 | Waveguide ring coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780056A (en) * | 2012-08-10 | 2012-11-14 | 成都赛纳赛德科技有限公司 | Directional coupler with main and auxiliary rectangular coaxial lines in different sizes |
| CN103066363A (en) * | 2011-10-19 | 2013-04-24 | 成都赛纳赛德科技有限公司 | Waveguide ring coupler |
-
2011
- 2011-10-19 CN CN 201120399287 patent/CN202308253U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066363A (en) * | 2011-10-19 | 2013-04-24 | 成都赛纳赛德科技有限公司 | Waveguide ring coupler |
| CN102780056A (en) * | 2012-08-10 | 2012-11-14 | 成都赛纳赛德科技有限公司 | Directional coupler with main and auxiliary rectangular coaxial lines in different sizes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |