CN104953220A - Coaxial-rectangular waveguide transformation device - Google Patents
Coaxial-rectangular waveguide transformation device Download PDFInfo
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- CN104953220A CN104953220A CN201510247160.0A CN201510247160A CN104953220A CN 104953220 A CN104953220 A CN 104953220A CN 201510247160 A CN201510247160 A CN 201510247160A CN 104953220 A CN104953220 A CN 104953220A
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- Prior art keywords
- waveguide
- coaxial
- closed
- rectangular waveguide
- conversion equipment
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Abstract
The invention provides a coaxial-rectangular waveguide transformation device. The coaxial-rectangular waveguide transformation device comprises a waveguide, a coaxial connector and a dielectric sleeve. The waveguide with one end open and the other end closed is provided with a plurality of stepped recesses facing the inside of the waveguide, the heights of the stepped recesses decrease sequentially from the closed end of the waveguide to the other end thereof, and the inner surface of each of the stepped recesses is covered with an impedance transformation layer. The axial direction of the coaxial connector is consistent with an electromagnetic wave transmission direction of the waveguide, and the coaxial connector is connected at the closed end of the waveguide, extends into the waveguide and is inserted into the impedance transformation layers. The dielectric sleeve is arranged at the closed end of the waveguide and sleeves the coaxial connector. The coaxial-rectangular waveguide transformation device is capable of achieving impedance matching by the aid of a structure of the waveguide.
Description
Technical field
The present invention relates to waveguide transitions technical field, particularly relate to a kind of coaxial rectangular 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 rectangular 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 rectangular waveguide conversion equipment, described coaxial rectangular waveguide conversion equipment comprises waveguide, coaxial fitting and medium sleeve, wherein, described waveguide end opening, the other end is closed, 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; 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.
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 rectangular 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 the present invention's coaxial rectangular waveguide conversion equipment embodiment.
Fig. 2 is the schematic top plan view of the present invention's coaxial rectangular waveguide conversion equipment embodiment.
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 conversion equipment of the embodiment of the present invention comprises waveguide 1, coaxial fitting 2 and medium sleeve 3.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.Closed one end of waveguide 1 is located at by medium sleeve 3, 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.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.By adding medium sleeve 3, 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 conversion equipment, it is characterized in that, described coaxial rectangular waveguide conversion equipment comprises waveguide, coaxial fitting 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, 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; Closed one end of described waveguide is located at by described medium sleeve, and is enclosed within described coaxial fitting.
2. coaxial rectangular waveguide conversion equipment according to claim 1, is characterized in that, described step-like depression is at least three grades.
3. coaxial rectangular 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 rectangular 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 |
|---|---|---|---|
| CN201510247160.0A CN104953220A (en) | 2015-05-15 | 2015-05-15 | Coaxial-rectangular waveguide transformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247160.0A CN104953220A (en) | 2015-05-15 | 2015-05-15 | Coaxial-rectangular waveguide transformation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104953220A true CN104953220A (en) | 2015-09-30 |
Family
ID=54167708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510247160.0A Pending CN104953220A (en) | 2015-05-15 | 2015-05-15 | Coaxial-rectangular waveguide transformation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104953220A (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 |
| CN104466327A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN204577552U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial rectangular waveguide conversion equipment |
-
2015
- 2015-05-15 CN CN201510247160.0A patent/CN104953220A/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 |
| CN104466327A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN204577552U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial rectangular waveguide conversion equipment |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150930 |