CN104466327A - Coaxial waveguide conversion device - Google Patents
Coaxial waveguide conversion device Download PDFInfo
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- CN104466327A CN104466327A CN201410763822.5A CN201410763822A CN104466327A CN 104466327 A CN104466327 A CN 104466327A CN 201410763822 A CN201410763822 A CN 201410763822A CN 104466327 A CN104466327 A CN 104466327A
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- waveguide
- coaxial
- conversion equipment
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- stage stairs
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Abstract
The invention provides a coaxial waveguide conversion device which comprises a waveguide and a coaxial connector. One end of the waveguide is opened, and the other end of the waveguide is closed. The waveguide is provided with a plurality of stages of step-like pits facing the interior of the waveguide. The heights of the step-like pits are sequentially decreased from the closed end to the other end of the waveguide. The inner surfaces of the step-like pits are covered with an impedance conversion layer. The coaxial connector is connected to the closed end of the waveguide, the axial direction of the coaxial connector is identical with the electromagnetic wave transmission direction of the waveguide, and the coaxial connector extends into the waveguide and is inserted into the impedance conversion layer. By means of the mode, impedance matching can be achieved by utilizing the own structure of the waveguide.
Description
Technical field
The present invention relates to waveguide transitions technical field, particularly relate to a kind of coaxial waveguide conversion equipment.
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 waveguide conversion equipment, 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 waveguide conversion equipment, described coaxial waveguide conversion equipment comprises waveguide and coaxial fitting, 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, the height of described multi-stage stairs shape depression reduces from closed one end of described waveguide successively to the other end, and the inner surface of described multi-stage stairs shape depression is covered with impedance transformation layer; 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 layer.
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.
Preferably, described waveguide is circular waveguide or rectangular waveguide.
The invention has the beneficial effects as follows: the situation being different from prior art, coaxial waveguide conversion equipment 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 coaxial waveguide conversion equipment embodiment of the present invention.
Fig. 2 is the schematic top plan view of coaxial waveguide conversion equipment 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 waveguide conversion equipment of the embodiment of the present invention comprises waveguide 1 and coaxial fitting 2.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, and the inner surface of multi-stage stairs shape depression 11 is covered with impedance transformation layer 12; 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 layer 12.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.
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.Be equivalent to traditional stepped impedance transformation block by multi-stage stairs shape depression 11, traditional stepped impedance transformation block can be replaced to realize impedance matching.Impedance transformation layer 12 can by process deposits such as sedimentations on the inner surface of multi-stage stairs shape depression 11, and the thickness of impedance transformation layer 12 can be arranged according to actual needs, to be adapted to the insertion size of different coaxial fittings 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 waveguide conversion equipment, it is characterized in that, described coaxial waveguide conversion equipment comprises waveguide and coaxial fitting, 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, the height of described multi-stage stairs shape depression reduces from closed one end of described waveguide successively to the other end, and the inner surface of described multi-stage stairs shape depression is covered with impedance transformation layer; 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 layer.
2. coaxial waveguide conversion equipment according to claim 1, is characterized in that, described step-like depression is at least three grades.
3. coaxial waveguide conversion equipment 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 waveguide conversion equipment 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 |
|---|---|---|---|
| CN201410763822.5A CN104466327A (en) | 2014-12-11 | 2014-12-11 | Coaxial waveguide conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763822.5A CN104466327A (en) | 2014-12-11 | 2014-12-11 | Coaxial waveguide conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104466327A true CN104466327A (en) | 2015-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410763822.5A Pending CN104466327A (en) | 2014-12-11 | 2014-12-11 | Coaxial waveguide conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104466327A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868217A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Rectangular waveguide conversion device |
| CN104868216A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN104953220A (en) * | 2015-05-15 | 2015-09-30 | 四川龙瑞微电子有限公司 | Coaxial-rectangular waveguide transformation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651115A (en) * | 1985-01-31 | 1987-03-17 | Rca Corporation | Waveguide-to-microstrip transition |
| CN204230403U (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion equipment |
-
2014
- 2014-12-11 CN CN201410763822.5A patent/CN104466327A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4651115A (en) * | 1985-01-31 | 1987-03-17 | Rca Corporation | Waveguide-to-microstrip transition |
| CN204230403U (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion equipment |
Non-Patent Citations (3)
| Title |
|---|
| WANG YI 等: ""An X-band Coaxial-to-Rectangular Waveguide Transition"", 《MICROWAVE TECHNOLOGY & COMPUTATIONAL ELECTROMAGNETICS 2011》 * |
| 周焱 等: ""周期性结构在毫米波波导同轴转换中应用"", 《北京航空航天大学学报》 * |
| 朱大红 等: ""模式匹配与综合方法设计Ka频段同轴-波导转换器"", 《微波学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868217A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Rectangular waveguide conversion device |
| CN104868216A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN104953220A (en) * | 2015-05-15 | 2015-09-30 | 四川龙瑞微电子有限公司 | Coaxial-rectangular waveguide transformation device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20150325 |