CN103311628A - Adapter - Google Patents
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- CN103311628A CN103311628A CN2012100678701A CN201210067870A CN103311628A CN 103311628 A CN103311628 A CN 103311628A CN 2012100678701 A CN2012100678701 A CN 2012100678701A CN 201210067870 A CN201210067870 A CN 201210067870A CN 103311628 A CN103311628 A CN 103311628A
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- waveguide
- metal ridge
- empty
- inner conductor
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Abstract
The invention discloses a coaxial-ridge waveguide adapter, which consists of a coaxial structure and a ridge waveguide. The adapter has the advantages of simple structure and capability of realizing ultra-wide band matching. The adapter is expected to be widely applied to electronic systems of various microwave bands.
Description
Technical field
The present invention relates to a kind of adapter, specifically, relate to a kind of utilize coaxial to the ridge waveguide crossover sub realize the coupling.The advantage of maximum of the present invention is: the central point that coaxial inner conductor is positioned at the end face of the end on the metal ridge is higher than metal ridge away from the upper end face of empty waveguide bottom.
Background technology
The coaxial-waveguide transition and conversion is switch transition joint common in the microwave circuit system applies, commonly used all is the transition that coaxial configuration arrives empty waveguide at present, can make direct transition or centre adopt the structure of gradual change to realize transition, it is wide not that but the shortcoming of these transition maximums is exactly bandwidth, and this makes the application of ultra broadband device be subject to very large limitation.Patent of the present invention take the transition of coaxial-ridge waveguide transform can fine realization ultra broadband coupling.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, the adapter of realizing ultra broadband coupling easy to process.
To achieve these goals, the technical solution used in the present invention is: a kind of adapter, comprise the sky waveguide, and the coaxial fitting that runs through the sky waveguide, and the cover plate that is arranged on sky waveguide top, and be arranged on sky waveguide metal ridge inner and that be connected with empty waveguide bottom; Metal ridge is the plane parallel with cover plate away from the one side of empty waveguide bottom, has the gap between the sidewall of metal ridge and empty waveguide, and described coaxial fitting mainly consists of by coaxial outer conductor and through the coaxial inner conductor of coaxial outer conductor; Described coaxial inner conductor stretches in the sky waveguide and with metal ridge and contacts, and coaxial inner conductor is connected an end with metal ridge end face central point is higher than metal ridge away from the one side of empty waveguide bottom.
The described coaxial inner conductor that stretches in the sky waveguide directly is placed on metal ridge away from also with it contact on the one side of empty waveguide bottom.
Described metal ridge has sulculus in 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 the sulculus, and described coaxial inner conductor is connected an end with metal ridge end face central point is higher than metal ridge away from the one side of empty waveguide bottom.
Cover plate is provided with Baltimore groove, Baltimore groove be positioned at the coaxial inner conductor that stretches into the sky waveguide directly over, the notch opening direction of described Baltimore groove is for pointing to empty waveguide bottom, the flute length of its Baltimore groove stretches into length in the sky waveguide greater than coaxial inner conductor.
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.
On the cover plate directly over the metal ridge in the described empty waveguide at least one tuning screw arranged, the axial direction of described tuning screw is perpendicular to the one side of metal ridge away from empty waveguide bottom.
At least one tuning screw arranged on the cover plate directly over the described Baltimore groove, and 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 the cover plate is less than 1/8 of empty duct height.
The present invention stretches into coaxial inner conductor in the sky waveguide and with metal ridge and contacts, and described coaxial inner conductor is connected an end with metal ridge end face central point is higher than metal ridge away from the one side of empty waveguide bottom.The input and output joint can better be mated under super width;
Filter in the past adopts the connected mode with the sidewall of coaxial fitting and metal ridge, and this set can only satisfy general filter function, can not reach the effect of ultra broadband filtering.Draw through experiment, the present invention is higher than metal ridge away from the one side of empty waveguide bottom with coaxial inner conductor is connected an end with metal ridge end face central point, and such setting can realize making the input and output joint better to mate under super width; Can realize the effect of ultra broadband filtering with this.
Further, the setting of coaxial line joint can be divided into two kinds, and a kind of is directly coaxial fitting to be placed on metal ridge away from also with it contact on the one side of empty waveguide bottom.Such setting can be saved the processing cost, enhances productivity.Another kind of, the present invention has sulculus with described metal ridge in 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 the sulculus, and described coaxial inner conductor is connected an end with metal ridge end face central point is higher than metal ridge away from the one side of empty waveguide bottom.
Because along with metal ridge is less away from one side and the gap between the cover plate of empty waveguide bottom, then the bandwidth of the ridge waveguide of metal ridge and empty waveguide composition is with increasing, the table one of below is 15mm for the empty duct width of rectangle, highly be 8mm, two transmission frequencies that claim the pattern that electromagnetic field distributes of the money when rectangular metal ridge width is 4.92mm under the pattern analysis of CST.Wherein represent metal ridge away from the one side of empty waveguide bottom and the gap between the 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 along with the change of 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, so its relative bandwidth is also just more and more less.
According to the test experience draw for satisfy bandwidth surpass also want simultaneously more than 100% so that return loss very little be that input reaches good coupling,, spy of the present invention is less than 1/8 of sky duct height with metal ridge away from one side and the gap between the cover plate of empty waveguide bottom.
Tuning in order to carry out the 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:
The operation principle of the adapter of coaxial-ridge waveguide at first is because the electric field of the main mould of coaxial line and the TE of ridge waveguide
10The electric field of pattern is very similar, can be understood as probe excitation here by coaxial inner conductor and realize coaxial transition to ridge waveguide, simultaneously because 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 can be the bandwidth of ridge waveguide single-mode work, can reach the several times sound interval.
Advantage of the present invention is that processing is simple, can realize the coupling of ultra broadband, and the present invention is expected to be used widely in the microwave system circuit.
Description of drawings
Fig. 1 is the side diagram schematic diagram of the embodiment of the invention 1.
Fig. 2 is the A-A direction cut-away view of the embodiment of the invention 1.
Fig. 3 is the cutaway view of the cover plate that the B-B direction among Fig. 2 is looked in the embodiment of the invention 1.
Fig. 4 is the end view schematic diagram of the embodiment of the invention 2.
Fig. 5 is C-C direction cutaway view in the embodiment of the invention 2.
Label among the 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 to this.
Embodiment 1
As shown in Figure 1, 2, 3, a kind of adapter comprises sky waveguide 3, and the coaxial fitting that runs through sky waveguide 3, and the cover plate 7 that is arranged on sky waveguide 3 tops, and the metal ridge 4 that is arranged on sky waveguide 3 inside and is connected with empty waveguide 3 bottoms; Metal ridge 4 is the plane parallel with cover plate 7 away from the one side of empty waveguide 3 bottoms, have the gap between the sidewall of metal ridge 4 and empty waveguide 3, described coaxial fitting mainly is made of coaxial outer conductor 1 and the coaxial inner conductor 2 that is positioned at coaxial outer conductor 1; Described coaxial inner conductor 1 stretches in the sky waveguide 3 and with metal ridge 4 and contacts, and coaxial inner conductor 1 is connected an end with metal ridge 4 end face central point is higher than metal ridge 4 away from the one side of empty waveguide 3 bottoms.
The described coaxial inner conductor 2 that stretches in the sky waveguide 3 directly is placed on metal ridge 4 away from contacting on the one side of empty waveguide 3 bottoms and with it.
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.
On the cover plate 7 directly over the metal ridge 4 in the described empty waveguide 3 at least one tuning screw 6 arranged, the axial direction of described tuning screw 6 is perpendicular to the one side of metal ridge 4 away from empty waveguide 3 bottoms.
On the cover plate 7 at least one tuning screw 6 arranged directly over the described Baltimore groove 5, the axial direction of described tuning screw 6 is perpendicular to the one side of metal ridge 4 away from empty waveguide 3 bottoms.
Gap between described metal ridge 4 and the cover plate 7 is less than 1/8 of empty 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 crooked, 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 surfaces, a kind of preferably situation of simple structure that all contacts coincidence with empty waveguide 3 bottom surfaces.Coaxial inner conductor 2 is given here to be straight, but it also can be crooked.The shape of the Baltimore groove 5 on the cover plate 7 that provides is various, and given here is cuboid, and the crest line on the short transverse is rounding, also can be that shape of cross section is the column of the part of circle.
As shown in Figure 4 and Figure 5, the difference of itself and embodiment 1 is that described metal ridge 4 has sulculus in the side near empty waveguide 3 sidewalls, sulculus is positioned on the top of this side away from empty waveguide 3 bottoms, described coaxial inner conductor 2 is arranged in the sulculus, and described coaxial inner conductor 2 is connected an end with metal ridge 4 end face central point is higher than metal ridge 4 away from the one side of empty waveguide 3 bottoms.
The cylindrical slot shape of opening on the plane, top on the metal ridge 4 can be various, and given here is rectangular channel.Become as mentioned above and can realize preferably the present invention.
Claims (10)
1. adapter, it is characterized in that, comprise sky waveguide (3), and the coaxial fitting that runs through sky waveguide (3), and the cover plate (7) that is arranged on sky waveguide (3) top, and be arranged on sky waveguide (3) metal ridge (4) inner and that 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, have the gap between the sidewall of metal ridge (4) and empty waveguide (3), described coaxial fitting mainly is made of the coaxial inner conductor (2) in coaxial outer conductor (1) and the coaxial outer conductor (1); Described coaxial inner conductor (2) stretches in the sky waveguide (3) and with metal ridge (4) and contacts, and coaxial inner conductor (2) is connected an end with metal ridge (4) end face central point is higher than metal ridge (4) away from the one side of empty waveguide (3) bottom.
2. a kind of adapter according to claim 1 is characterized in that, the described coaxial inner conductor (2) that stretches in the sky waveguide (3) directly is placed on metal ridge (4) away from contacting on the one side of empty waveguide (3) bottom and with it.
3. a kind of adapter according to claim 1, it is characterized in that, described metal ridge (4) has sulculus in 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 the sulculus, and described coaxial inner conductor (2) is connected an end with metal ridge (4) end face central point is higher than metal ridge (4) away from the one side of empty waveguide (3) bottom.
4. a kind of adapter according to claim 1, its feature is being, cover plate (7) is provided with Baltimore groove (5), Baltimore groove (5) be positioned at the coaxial inner conductor (2) that stretches into sky waveguide (3) directly over, the notch opening direction of described Baltimore groove (5) is for pointing to empty waveguide (3)
The bottom, the flute length of its Baltimore groove (5) stretches into length in the sky waveguide (3) greater than coaxial inner conductor (2).
5. 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.
6. a kind of adapter according to claim 4 is characterized in that, the shape of cross section of described Baltimore groove (5) is rectangle.
7. a kind of adapter according to claim 4 is characterized in that, the shape of cross section of described Baltimore groove (5) is a circular part.
8. a kind of adapter according to claim 1, it is characterized in that, being positioned on the cover plate (7) directly over the metal ridge (4) of 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.
9. a kind of adapter according to claim 4, it is characterized in that, on the cover plate (7) directly over the described Baltimore groove (5) at least one tuning screw (6) arranged, the axial direction of described tuning screw (6) is perpendicular to the one side of metal ridge (4) away from empty waveguide (3) bottom.
10. the described a kind of adapter of any one is characterized in that according to claim 1-9, and the gap between described metal ridge (4) and the cover plate (7) is less than 1/8 of empty duct height.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103311628A true CN103311628A (en) | 2013-09-18 |
| CN103311628B CN103311628B (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210067870.1A Active CN103311628B (en) | 2012-03-15 | 2012-03-15 | A kind of adapter |
Country Status (1)
| Country | Link |
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| CN (1) | CN103311628B (en) |
Cited By (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 |
| CN113346214A (en) * | 2021-05-25 | 2021-09-03 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
Citations (12)
| 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 |
| 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 |
| EP0704923A1 (en) * | 1994-09-28 | 1996-04-03 | ANT Nachrichtentechnik GmbH | Comb filter |
| JPH09130108A (en) * | 1995-10-31 | 1997-05-16 | Nec Eng Ltd | Coaxial waveguide converter |
| 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 |
-
2012
- 2012-03-15 CN CN201210067870.1A patent/CN103311628B/en active Active
Patent Citations (12)
| 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 |
| 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 |
| EP0704923A1 (en) * | 1994-09-28 | 1996-04-03 | ANT Nachrichtentechnik GmbH | Comb filter |
| JPH09130108A (en) * | 1995-10-31 | 1997-05-16 | Nec Eng Ltd | Coaxial waveguide converter |
| 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 |
Cited By (3)
| 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 |
| CN113346214A (en) * | 2021-05-25 | 2021-09-03 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
| CN113346214B (en) * | 2021-05-25 | 2022-07-15 | 北京无线电测量研究所 | Ridge waveguide coaxial converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103311628B (en) | 2015-11-04 |
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