CN103311628B - A kind of adapter - Google Patents
A kind of adapter Download PDFInfo
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- CN103311628B CN103311628B CN201210067870.1A CN201210067870A CN103311628B CN 103311628 B CN103311628 B CN 103311628B CN 201210067870 A CN201210067870 A CN 201210067870A CN 103311628 B CN103311628 B CN 103311628B
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- waveguide
- metal ridge
- sky
- empty
- inner conductor
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Abstract
The invention discloses a kind of coaxial-ridge waveguide crossover sub, it is made up of coaxial configuration and ridge waveguide, and its advantage is: structure is simple, can realize the coupling of ultra broadband.Adapter of the present invention is expected to be widely used in the electronic system of various microwave band.
Description
Technical field
The present invention relates to a kind of adapter, specifically, relate to a kind of utilization and coaxially realize coupling to ridge waveguide crossover sub.The maximum advantage of the present invention is: coaxial inner conductor is positioned at the central point of the end face of the one end in metal ridge higher than the upper end face of metal ridge away from empty waveguide bottom.
Background technology
Coaxial-waveguide transition conversion is switch transition joint common in the application of microwave circuit system, conventional is all the transition that coaxial configuration arrives empty waveguide at present, the structure of direct transition or middle employing gradual change can be made to realize transition, but the maximum shortcoming of these transition is exactly that bandwidth is wide not, and this makes the application of ultra broadband device receive very large limitation.Patent of the present invention takes the transition of coaxial-ridge waveguide to transform the coupling that can realize ultra broadband very well.
Summary of the invention
The object of this invention is to provide a kind of structure simple, the adapter realizing ultra broadband coupling easy to process.
To achieve these goals, the technical solution used in the present invention is: a kind of adapter, comprises sky waveguide, and runs through the coaxial fitting of sky waveguide, and the cover plate be arranged on above sky waveguide, and be arranged on sky waveguide inside and the metal ridge be connected with empty waveguide bottom; Metal ridge is the plane parallel with cover plate away from the one side of empty waveguide bottom, there is gap between the sidewall of metal ridge and empty waveguide, and described coaxial fitting is formed primarily of coaxial outer conductor and through the coaxial inner conductor of coaxial outer conductor; Described coaxial inner conductor to stretch in sky waveguide and contacts with metal ridge, and coaxial inner conductor is connected the end face central point of one end higher than the one side of metal ridge away from empty waveguide bottom with metal ridge.
The described coaxial inner conductor stretched in sky waveguide is directly placed on metal ridge and also contacts with it away from the one side of empty waveguide bottom.
Described metal ridge has sulculus on the side near empty waveguide sidewalls, sulculus is positioned on the top of this side away from empty waveguide bottom, described coaxial inner conductor is arranged in sulculus, and described coaxial inner conductor is connected the end face central point of one end higher than the one side of metal ridge away from empty waveguide bottom with metal ridge.
Cover plate is provided with Baltimore groove, Baltimore groove be positioned at stretch into sky waveguide coaxial inner conductor directly over, the notch opening direction of described Baltimore groove is for pointing to empty waveguide bottom, and the flute length of its Baltimore groove is greater than coaxial inner conductor and stretches into length in sky waveguide.
The shape of cross section of described empty waveguide and metal ridge is rectangle.
The shape of cross section of described Baltimore groove is rectangle.
The shape of cross section of described Baltimore groove is a circular part.
Cover plate directly over metal ridge in described empty waveguide has at least one tuning screw, and the axial direction of described tuning screw is perpendicular to the one side of metal ridge away from empty waveguide bottom.
Cover plate directly over described Baltimore groove has at least one tuning screw, the axial direction of described tuning screw is perpendicular to the one side of metal ridge away from empty waveguide bottom.
Gap between described metal ridge and cover plate is less than 1/8 of sky duct height.
Coaxial inner conductor to stretch in sky waveguide and contacts with metal ridge by the present invention, and described coaxial inner conductor is connected the end face central point of one end higher than the one side of metal ridge away from empty waveguide bottom with metal ridge.Make input and output joint better can mate under ultra-wide degree like this;
Filter in the past adopts the connected mode of the sidewall of coaxial fitting and metal ridge, and this set can only meet general filter function, can not reach the effect of ultra broadband filtering.Draw through experiment, coaxial inner conductor is connected the end face central point of one end higher than the one side of metal ridge away from empty waveguide bottom by the present invention with metal ridge, and such setting can realize input and output joint better can be mated under ultra broadband; The effect of ultra broadband filtering can be realized with this.
Further, the setting of coaxial line joint can be divided into two kinds, and a kind of is directly coaxial fitting is placed on metal ridge also to contact with it away from the one side of empty waveguide bottom.Such setting can save processing cost, enhances productivity.Another kind of, described metal ridge is had sulculus by the present invention on the side near empty waveguide sidewalls, sulculus is positioned on the top of this side away from empty waveguide bottom, coaxial inner conductor is arranged in sulculus, and described coaxial inner conductor is connected the end face central point of one end higher than the one side of metal ridge away from empty waveguide bottom with metal ridge.
Due to along with metal ridge less away from the gap between the one side of empty waveguide bottom and cover plate, then the bandwidth of ridge waveguide that forms of metal ridge and empty waveguide is by increasing, the table one of below is the empty duct width of rectangle is 15mm, be highly 8mm, when rectangular metal ridge width is 4.92mm CST pattern analysis under the first two claim the transmission frequency of the pattern of magnetic distribution.Wherein represent that metal ridge is away from the gap between the one side of empty waveguide bottom and cover plate with gap, f1 represents the transmission frequency of first pattern, and f2 is expressed as the transmission frequency of second pattern, and the unit of frequency is GHz, and the unit of length is mm.
Table one
Can find out that the change along with gap is large, f1 becomes large trend, and to become large trend than f2 faster, and namely the ratio of f2 and f1 is more and more less, and therefore its relative bandwidth is also just more and more less.
Draw according to test experience also will to make the very little i.e. input of return loss reach good coupling to meet bandwidth simultaneously more than more than 100%, the present invention is special is less than 1/8 of sky duct height by metal ridge away from the gap between the one side of empty waveguide bottom and cover plate.
In order to carry out tuning to coaxial inner conductor position, the present invention also arranges Baltimore groove, on Baltimore groove too be provided with tuning screw.
The operation principle of adapter:
First the operation principle of the adapter of coaxial-ridge waveguide is the electric field of main mould due to coaxial line and the TE of ridge waveguide
10the electric field of pattern is very similar, can be understood as probe excitation here to realize the transition of coaxially arriving ridge waveguide by coaxial inner conductor, simultaneously due to ridge waveguide TE
10the cut-off frequency of mould is than rectangular waveguide TE
10mould low, and its TE
20the cut-off frequency of mould is but than square
Shape waveguide TE
20the height of mould, therefore the bandwidth that can be the work of ridge waveguide single-mode, can reach several times sound interval.
Advantage of the present invention is that processing is simple, and can realize the coupling of ultra broadband, the present invention is expected to be used widely in microwave system circuit.
Accompanying drawing explanation
Fig. 1 is the side diagram schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the A-A direction cut-away view of the embodiment of the present invention 1.
Fig. 3 is the cutaway view of the cover plate looked in the B-B direction in the embodiment of the present invention 1 in Fig. 2.
Fig. 4 is the end view schematic diagram of the embodiment of the present invention 2.
Fig. 5 is C-C direction cutaway view in the embodiment of the present invention 2.
Label in figure is respectively: 1, coaxial outer conductor; 2, coaxial inner conductor; 3, empty waveguide; 4, metal ridge; 5, Baltimore groove; 6, tuning screw; 7, cover plate.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of adapter, comprises sky waveguide 3, and runs through the coaxial fitting of sky waveguide 3, and is arranged on the cover plate 7 above sky waveguide 3, and be arranged on sky waveguide 3 inner and with the metal ridge 4 be connected bottom empty waveguide 3; Metal ridge 4 is the plane parallel with cover plate 7 away from the one side bottom empty waveguide 3, there is gap between the sidewall of metal ridge 4 and empty waveguide 3, described coaxial fitting is formed primarily of coaxial outer conductor 1 and the coaxial inner conductor 2 that is positioned at coaxial outer conductor 1; Described coaxial inner conductor 1 to stretch in sky waveguide 3 and contacts with metal ridge 4, coaxial inner conductor 1 is connected one end end face central point with metal ridge 4 higher than metal ridge 4 away from the one side bottom empty waveguide 3.
The described coaxial inner conductor 2 stretched in sky waveguide 3 is directly placed on metal ridge 4 and also contacts with it away from the one side bottom empty waveguide 3.
Cover plate 7 is provided with Baltimore groove 5, Baltimore groove 5 be positioned at stretch into sky waveguide 3 coaxial inner conductor 2 directly over, the notch opening direction of described Baltimore groove 5 is for pointing to bottom empty waveguide 3, and the flute length of its Baltimore groove 5 is greater than coaxial inner conductor 2 and stretches into length in sky waveguide 3.
The shape of cross section of described empty waveguide 3 and metal ridge 4 is rectangle.
The transverse cross-sectional shape of described Baltimore groove 5 is rectangle.
The shape of cross section of described Baltimore groove 5 is a circular part.
Cover plate 7 directly over metal ridge 4 in described empty waveguide 3 has at least one tuning screw 6, the axial direction of described tuning screw 6 perpendicular to metal ridge 4 away from the one side bottom empty waveguide 3.
Directly over described Baltimore groove 5, cover plate 7 has at least one tuning screw 6, the axial direction of described tuning screw 6 perpendicular to metal ridge 4 away from the one side bottom empty waveguide 3.
Gap between described metal ridge 4 and cover plate 7 is less than 1/8 of sky waveguide 3 height.
Other way of realization of the present invention is diversified, such as empty waveguide 3 and metal ridge 4 can be straight also can be bending, given here is straight, the shape of the bottom surface of metal ridge 4 is various, given here is the plane parallel with empty waveguide 3 bottom surface, all contacts the situation of a kind of preferably the simplest structure of coincidence with empty waveguide 3 bottom surface.Coaxial inner conductor 2 is given here is straight, but it also can be bending.The shape of the Baltimore groove 5 on the cover plate 7 provided is various, and given here is cuboid, and the crest line in short transverse is rounding, the column of a circular part that also can be shape of cross section be.
Embodiment 2
As shown in Figure 4 and Figure 5, the described metal ridge 4 that is distinguished as of itself and embodiment 1 has sulculus on the side near empty waveguide 3 sidewall, sulculus is positioned at this side away from the top bottom empty waveguide 3, described coaxial inner conductor 2 is arranged in sulculus, described coaxial inner conductor 2 is connected one end end face central point with metal ridge 4 higher than metal ridge 4 away from the one side bottom empty waveguide 3.
It can be various for metal ridge 4 being pushed up the cylindrical slot shape that plane is opened, and given here is rectangular channel.Just the present invention can be realized preferably as mentioned above.
Claims (7)
1. an adapter, it is characterized in that, comprise sky waveguide (3), and run through the coaxial fitting of sky waveguide (3), and be arranged on the cover plate (7) of sky waveguide (3) top, and be arranged on sky waveguide (3) inside and the metal ridge (4) be connected with empty waveguide (3) bottom; Metal ridge (4) is the plane parallel with cover plate (7) away from the one side of empty waveguide (3) bottom, there is gap between the sidewall of metal ridge (4) and empty waveguide (3), described coaxial fitting is formed primarily of the coaxial inner conductor (2) in coaxial outer conductor (1) and coaxial outer conductor (1); Described coaxial inner conductor (2) to stretch in sky waveguide (3) and contacts with metal ridge (4), and coaxial inner conductor (2) is connected the end face central point of one end higher than the one side of metal ridge (4) away from empty waveguide (3) bottom with metal ridge (4); Cover plate (7) is provided with Baltimore groove (5), Baltimore groove (5) be positioned at stretch into sky waveguide (3) coaxial inner conductor (2) directly over, the notch opening direction of described Baltimore groove (5) is for pointing to empty waveguide (3) bottom, and the flute length of its Baltimore groove (5) is greater than coaxial inner conductor (2) and stretches into length in sky waveguide (3); Gap between described metal ridge (4) and cover plate (7) is less than 1/8 of sky duct height.
2. a kind of adapter according to claim 1, is characterized in that, described in the coaxial inner conductor (2) stretched in sky waveguide (3) be directly placed on metal ridge (4) away from empty waveguide (3) bottom one side on and contact with it.
3. a kind of adapter according to claim 1, it is characterized in that, described metal ridge (4) has sulculus on the side near empty waveguide (3) sidewall, sulculus is positioned on the top of this side away from empty waveguide (3) bottom, described coaxial inner conductor (2) is arranged in sulculus, and described coaxial inner conductor (2) is connected the end face central point of one end higher than the one side of metal ridge (4) away from empty waveguide (3) bottom with metal ridge (4).
4. a kind of adapter according to claim 1, is characterized in that, the shape of cross section of described empty waveguide (3) and metal ridge (4) is rectangle.
5. a kind of adapter according to claim 1, is characterized in that, the shape of cross section of described Baltimore groove (5) is rectangle.
6. a kind of adapter according to claim 1, is characterized in that, the shape of cross section of described Baltimore groove (5) is a circular part.
7. a kind of adapter according to claim 1, it is characterized in that, cover plate (7) directly over the metal ridge (4) being positioned at sky waveguide (3) has at least one tuning screw (6), and the axial direction of described tuning screw (6) is perpendicular to the one side of metal ridge (4) away from empty waveguide (3) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210067870.1A CN103311628B (en) | 2012-03-15 | 2012-03-15 | A kind of adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210067870.1A CN103311628B (en) | 2012-03-15 | 2012-03-15 | A kind of adapter |
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| Publication Number | Publication Date |
|---|---|
| CN103311628A CN103311628A (en) | 2013-09-18 |
| CN103311628B true CN103311628B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210067870.1A Active CN103311628B (en) | 2012-03-15 | 2012-03-15 | A kind of adapter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304995A (en) * | 2015-10-10 | 2016-02-03 | 成都赛纳赛德科技有限公司 | Ultrawide-band coaxial ridge waveguide adapter |
| CN113346214B (en) * | 2021-05-25 | 2022-07-15 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
Citations (8)
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|---|---|---|---|---|
| US2659055A (en) * | 1946-05-24 | 1953-11-10 | Seymour B Cohn | Dielectric wave guide to coaxial line junction |
| GB821150A (en) * | 1956-09-12 | 1959-09-30 | Marconi Wireless Telegraph Co | Improvements in or relating to waveguide-to-coaxial line transformers |
| EP0704923A1 (en) * | 1994-09-28 | 1996-04-03 | ANT Nachrichtentechnik GmbH | Comb filter |
| GB2338607A (en) * | 1998-01-17 | 1999-12-22 | Alan Frederick Corlett | Co-axial to waveguide end launch transition |
| CN2836255Y (en) * | 2005-11-03 | 2006-11-08 | 中国电子科技集团公司第三十八研究所 | Wideband small standing wave end fired coaxial waveguide converter |
| CN101593872A (en) * | 2009-07-01 | 2009-12-02 | 电子科技大学 | A kind of back-fed millimeter wave broadband double ridged horn antenna |
| CN102324600A (en) * | 2011-07-25 | 2012-01-18 | 成都赛纳赛德科技有限公司 | Ultra-wideband filter |
| CN202474171U (en) * | 2012-03-15 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Adapter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235801A (en) * | 1988-07-26 | 1990-02-06 | Fujitsu Ltd | Small ridge waveguide and coaxial line converter |
| JPH0537211A (en) * | 1991-07-26 | 1993-02-12 | Nec Corp | Coaxial waveguide converter circuit |
| JPH0745210A (en) * | 1993-07-29 | 1995-02-14 | Nec Corp | Output circuit for helix type traveling wave tube |
| JP3508037B2 (en) * | 1995-10-31 | 2004-03-22 | 日本電気エンジニアリング株式会社 | Coaxial waveguide converter |
-
2012
- 2012-03-15 CN CN201210067870.1A patent/CN103311628B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2659055A (en) * | 1946-05-24 | 1953-11-10 | Seymour B Cohn | Dielectric wave guide to coaxial line junction |
| GB821150A (en) * | 1956-09-12 | 1959-09-30 | Marconi Wireless Telegraph Co | Improvements in or relating to waveguide-to-coaxial line transformers |
| EP0704923A1 (en) * | 1994-09-28 | 1996-04-03 | ANT Nachrichtentechnik GmbH | Comb filter |
| GB2338607A (en) * | 1998-01-17 | 1999-12-22 | Alan Frederick Corlett | Co-axial to waveguide end launch transition |
| CN2836255Y (en) * | 2005-11-03 | 2006-11-08 | 中国电子科技集团公司第三十八研究所 | Wideband small standing wave end fired coaxial waveguide converter |
| CN101593872A (en) * | 2009-07-01 | 2009-12-02 | 电子科技大学 | A kind of back-fed millimeter wave broadband double ridged horn antenna |
| CN102324600A (en) * | 2011-07-25 | 2012-01-18 | 成都赛纳赛德科技有限公司 | Ultra-wideband filter |
| CN202474171U (en) * | 2012-03-15 | 2012-10-03 | 成都赛纳赛德科技有限公司 | Adapter |
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| Publication number | Publication date |
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| CN103311628A (en) | 2013-09-18 |
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