CN104868216A - Coaxial waveguide conversion device - Google Patents
Coaxial waveguide conversion device Download PDFInfo
- Publication number
- CN104868216A CN104868216A CN201510247195.4A CN201510247195A CN104868216A CN 104868216 A CN104868216 A CN 104868216A CN 201510247195 A CN201510247195 A CN 201510247195A CN 104868216 A CN104868216 A CN 104868216A
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- waveguide
- coaxial
- closed
- dielectric
- coaxial connector
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Abstract
The invention provides a coaxial waveguide conversion device. The device 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 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 internal surface of the multi-stage step-shaped concave part is covered with an impedance conversion layer. 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. The dielectric plate is shaped like a long strip, and the coaxial connector passes through the central part of the dielectric plate to be inserted into the impedance conversion layer. Two ends of the dielectric plate respectively abut against the inner wall of the waveguide. Through the above mode, the device 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 waveguide converter part.
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 converter part, 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 converter part, described coaxial waveguide converter part comprises waveguide, coaxial fitting, medium sleeve and dielectric-slab, 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; Described dielectric-slab is strip, and described coaxial fitting inserts described impedance transformation layer through the middle part of described dielectric-slab, and the two ends of described dielectric-slab abut the inwall of described waveguide respectively.
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 converter part 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 converter part embodiment of the present invention.
Fig. 2 is that schematic diagram is looked on a left side for coaxial waveguide converter part 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 converter part of the embodiment of the present invention comprises waveguide 1, coaxial fitting 2, medium sleeve 3 and dielectric-slab 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, 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.Dielectric-slab 4 is strip, and coaxial fitting 2 inserts impedance transformation layer 12 through the middle part of dielectric-slab 4, and the two ends of dielectric-slab 4 abut the inwall of described waveguide respectively
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.By adding dielectric-slab 4, transmission performance and impedance matching effect can be improved.
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 converter part, it is characterized in that, described coaxial waveguide converter part comprises waveguide, coaxial fitting, medium sleeve and dielectric-slab, 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; Described dielectric-slab is strip, and described coaxial fitting inserts described impedance transformation layer through the middle part of described dielectric-slab, and the two ends of described dielectric-slab abut the inwall of described waveguide respectively.
2. coaxial waveguide converter part according to claim 1, is characterized in that, described step-like depression is at least three grades.
3. coaxial waveguide converter part 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 converter part 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 |
|---|---|---|---|
| CN201510247195.4A CN104868216A (en) | 2015-05-15 | 2015-05-15 | Coaxial waveguide conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247195.4A CN104868216A (en) | 2015-05-15 | 2015-05-15 | Coaxial waveguide conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104868216A true CN104868216A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510247195.4A Pending CN104868216A (en) | 2015-05-15 | 2015-05-15 | Coaxial waveguide conversion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104868216A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080246553A1 (en) * | 2007-04-09 | 2008-10-09 | Nec Microwave Tube, Ltd. | Structure of coaxial-to-waveguide transition and traveling wave tube |
| CN104466327A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN204577555U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial waveguide converter part |
-
2015
- 2015-05-15 CN CN201510247195.4A patent/CN104868216A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080246553A1 (en) * | 2007-04-09 | 2008-10-09 | Nec Microwave Tube, Ltd. | Structure of coaxial-to-waveguide transition and traveling wave tube |
| CN104466327A (en) * | 2014-12-11 | 2015-03-25 | 四川龙瑞微电子有限公司 | Coaxial waveguide conversion device |
| CN204577555U (en) * | 2015-05-15 | 2015-08-19 | 四川龙瑞微电子有限公司 | Coaxial waveguide converter part |
Non-Patent Citations (1)
| Title |
|---|
| 万厉斌，关亚林: "33-38GHz同轴-矩形波导转换器的设计", 《科技创新与应用》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |