CN104868215A - Coaxial rectangular waveguide converter - Google Patents
Coaxial rectangular waveguide converter Download PDFInfo
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- CN104868215A CN104868215A CN201510246977.6A CN201510246977A CN104868215A CN 104868215 A CN104868215 A CN 104868215A CN 201510246977 A CN201510246977 A CN 201510246977A CN 104868215 A CN104868215 A CN 104868215A
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- waveguide
- coaxial
- closed
- rectangular waveguide
- transformation block
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Abstract
The invention provides a coaxial rectangular waveguide converter. The converter comprises a waveguide, a coaxial connector, an impedance conversion block, and a dielectric sleeve. One end of the waveguide is opened, and the other end of the waveguide is closed. The waveguide is provided with a multi-stage step-shaped concave part facing the interior of the waveguide. The height of the multi-stage step-shaped concave part sequentially decreases from the closed end of the waveguide to the other end of the waveguide. The impedance conversion block is located in the waveguide, and is connected to the uppermost layer of the multi-stage step-shaped concave part. The coaxial connector is connected to the closed end of the waveguide, and the axial direction of the coaxial connector is consistent with the transmission direction of an electromagnetic wave of the waveguide. The coaxial connector extends into the waveguide, and is inserted into the impedance conversion layer. A dielectric sleeve is disposed at the closed end of the waveguide, and sleeves the coaxial connector. Through the above mode, the converter can employ the structure of the waveguide to achieve impedance matching.
Description
Technical field
The present invention relates to waveguide transitions technical field, particularly relate to a kind of coaxial rectangular waveguide transducer.
Background technology
In order to realize reducing insertion loss in the transfer process between waveguide and coaxial line, the means that prior art is taked are in waveguide, arrange stair-stepping impedance transformation block, coaxial fitting are directly inserted the impedance transformation block in waveguide.Therefore, an impedance transformation block must be set in waveguide, and the position of impedance transformation block is once can not change after determining.But in actual treatment, the connection between impedance transformation block and waveguide is also insecure, usually can produce mobile in carrying or installation process.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of coaxial rectangular waveguide transducer, and the structure of waveguide self can be utilized to realize impedance matching.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of coaxial rectangular waveguide transducer, described coaxial rectangular waveguide transducer comprises waveguide, coaxial fitting, impedance transformation block and medium sleeve, wherein, described waveguide end opening, the other end is closed, and described waveguide has and caves in towards the multi-stage stairs shape of described waveguide inside, and the height of described multi-stage stairs shape depression reduces from closed one end of described waveguide successively to the other end; Described impedance transformation block is positioned at described waveguide inside and is connected in top step-like depression; Described coaxial fitting is connected to closed one end of described waveguide and the axis of described coaxial fitting is consistent with the electromagnetic transmission direction of described waveguide, and it is inner that described coaxial fitting stretches into described waveguide, and insert in described impedance transformation block; Closed one end of described waveguide is located at by described medium sleeve, and is enclosed within described coaxial fitting.
Preferably, described step-like depression is at least three grades.
Preferably, described multi-stage stairs shape depression is equal with the distance of the both sides sidewall of described waveguide.
The invention has the beneficial effects as follows: the situation being different from prior art, coaxial rectangular waveguide transducer of the present invention arranges multi-stage stairs shape depression and replaces traditional stepped impedance transformation block in waveguide, thus the structure of waveguide self can be utilized to realize impedance matching, owing to not needing to adopt stepped impedance transformation block, the composition of waveguide can be reduced, reduce the manufacturing cost of waveguide.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the coaxial rectangular waveguide converter embodiment of the present invention.
Fig. 2 is the schematic top plan view of the coaxial rectangular waveguide converter embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1 and Fig. 2.The coaxial rectangular waveguide transducer of the embodiment of the present invention comprises waveguide 1, coaxial fitting 2, impedance transformation block 3 and medium sleeve 4.Wherein, waveguide 1 one end open, the other end is closed, and waveguide 1 has towards the multi-stage stairs shape depression 11 of waveguide 1 inside, the height of multi-stage stairs shape depression 11 reduces from closed one end of waveguide 1 successively to the other end; Impedance transformation block 3 is positioned at waveguide inside and is connected in top step-like depression 11; Coaxial fitting 2 is connected to closed one end of waveguide 1 and the axis of coaxial fitting 2 is consistent with the electromagnetic transmission direction of waveguide 1, and it is inner that coaxial fitting 2 stretches into waveguide 1, and insert in impedance transformation block 3.In the present embodiment, step-like depression 11 is at least three grades, and multi-stage stairs shape depression 11 is equal with the distance of the both sides sidewall of waveguide 1.Waveguide 1 can be circular waveguide or rectangular waveguide.Closed one end of waveguide 1 is located at by medium sleeve 4, and is enclosed within coaxial fitting 2.
Wherein, the processing mode of multi-stage stairs shape depression 11 is fairly simple, and processing cost is low, can be obtained by one time punching molded.Multi-stage stairs shape depression 11 is equivalent to traditional stepped impedance transformation block, and traditional stepped impedance transformation block can be replaced to realize impedance matching.And the insertion size of different coaxial fittings 2 can be adapted to by the position of adjustment impedance transformation block 3.By adding medium sleeve 4, the equiva lent impedance of waveguide 1 can be reduced, reducing the sensitiveness of impedance versus frequency change, thus the frequency band of broadening coaxial fitting 2.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a coaxial rectangular waveguide transducer, it is characterized in that, described coaxial rectangular waveguide transducer comprises waveguide, coaxial fitting, impedance transformation block and medium sleeve, wherein, described waveguide end opening, the other end is closed, and described waveguide has and caves in towards the multi-stage stairs shape of described waveguide inside, and the height of described multi-stage stairs shape depression reduces from closed one end of described waveguide successively to the other end; Described impedance transformation block is positioned at described waveguide inside and is connected in top step-like depression; Described coaxial fitting is connected to closed one end of described waveguide and the axis of described coaxial fitting is consistent with the electromagnetic transmission direction of described waveguide, and it is inner that described coaxial fitting stretches into described waveguide, and insert in described impedance transformation block; Closed one end of described waveguide is located at by described medium sleeve, and is enclosed within described coaxial fitting.
2. coaxial rectangular waveguide transducer according to claim 1, is characterized in that, described step-like depression is at least three grades.
3. coaxial rectangular waveguide transducer according to claim 1, is characterized in that, described multi-stage stairs shape depression is equal with the distance of the both sides sidewall of described waveguide.
4. coaxial rectangular waveguide transducer according to claim 1, is characterized in that, described waveguide is circular waveguide or rectangular waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246977.6A CN104868215A (en) | 2015-05-15 | 2015-05-15 | Coaxial rectangular waveguide converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246977.6A CN104868215A (en) | 2015-05-15 | 2015-05-15 | Coaxial rectangular waveguide converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104868215A true CN104868215A (en) | 2015-08-26 |
Family
ID=53913874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246977.6A Pending CN104868215A (en) | 2015-05-15 | 2015-05-15 | Coaxial rectangular waveguide converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104868215A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651115A (en) * | 1985-01-31 | 1987-03-17 | Rca Corporation | Waveguide-to-microstrip transition |
| US4740764A (en) * | 1987-06-03 | 1988-04-26 | Varian Associates, Inc. | Pressure sealed waveguide to coaxial line connection |
| CN104466326A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide switch |
| CN204577556U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial rectangular waveguide transducer |
-
2015
- 2015-05-15 CN CN201510246977.6A patent/CN104868215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651115A (en) * | 1985-01-31 | 1987-03-17 | Rca Corporation | Waveguide-to-microstrip transition |
| US4740764A (en) * | 1987-06-03 | 1988-04-26 | Varian Associates, Inc. | Pressure sealed waveguide to coaxial line connection |
| CN104466326A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide switch |
| CN204577556U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial rectangular waveguide transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |