CN102820498A - High temperature resistant waveguide coaxial structure - Google Patents
High temperature resistant waveguide coaxial structure Download PDFInfo
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- CN102820498A CN102820498A CN2012102923661A CN201210292366A CN102820498A CN 102820498 A CN102820498 A CN 102820498A CN 2012102923661 A CN2012102923661 A CN 2012102923661A CN 201210292366 A CN201210292366 A CN 201210292366A CN 102820498 A CN102820498 A CN 102820498A
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- cavity
- heat insulation
- waveguide
- coaxial structure
- rectangular metal
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Abstract
The invention discloses a high temperature resistant waveguide coaxial structure. The high temperature resistant waveguide coaxial structure comprises a rectangular metal waveguide cavity and a socket arranged on the rectangular metal waveguide cavity. The rectangular metal waveguide cavity is provided with a cavity. The temperature resistant waveguide coaxial structure further comprises an insulating block which is arranged in the cavity of the rectangular metal waveguide cavity, wherein a through hole is arranged on the upper surface of the insulating block, and the lower end of a wall through cylinder of the socket is inserted into the through hole of the insulating block; and an insulating block coated layer by metal which is arranged on the lower surface of the insulating block, wherein the insulating block coated layer by metal is attached to the rectangular metal waveguide cavity compactly. The high temperature resistant waveguide coaxial structure provided by the invention can be applied to a millimeter wave frequency range under a high temperature environment, so that the electrical property of the socket is ensured, the good standing-wave ratio of the waveguide coaxial structure is guaranteed and the insertion loss of the high temperature resistant waveguide coaxial structure is less.
Description
Technical field
What the present invention relates to is the feed field of metal waveguide under the hot environment, is used for the coaxial socket excitation of various antennas of under hot environment, processing with metal waveguide and microwave device, particularly a kind of resistant to elevated temperatures Waveguide coaxial structure.
Background technology
Existing Waveguide coaxial transformational structure is usually used in the antenna and microwave device that metal waveguide is a main structure, and this feeding classification is promptly reliable simply again.Not account temperature factor of environmental influence under normal temperature environment, coaxial socket can directly carry out feed to waveguide.But because coaxial socket has the hot operation temperature upper limit, the coaxial socket high temperature ceiling temperature that does not add any treatment measures is 180 ℃, surpasses this temperature; The electrical property of coaxial socket will worsen; Make the standing-wave ratio variation of waveguide coaxial converter, insert loss and become big, even can not use.
Be not higher than in operating frequency under the situation of 20GHz, can use the SMA socket.The resistant to elevated temperatures SMA socket of modified model is the reversed polarity socket that adopts the glass sintering ceramic material.This socket can anti-350 ℃ temperature environment.But the SMA socket of this kind reversed polarity can't be used for millimeter wave field (being the situation of operating frequency greater than 26GHz).
Summary of the invention
The purpose of this invention is to provide a kind of resistant to elevated temperatures Waveguide coaxial structure, can be applied to the millimeter wave frequency band under the hot environment, guarantee the electrical property of socket, guarantee Waveguide coaxial well-formed's standing-wave ratio, and insert it into loss and diminish.
In order to realize above purpose, the present invention realizes through following technical scheme:
A kind of resistant to elevated temperatures Waveguide coaxial structure comprises: rectangular metal waveguide cavity and be arranged on the socket on the said rectangular metal waveguide cavity, and described rectangular metal waveguide cavity is provided with cavity; Described resistant to elevated temperatures Waveguide coaxial structure also comprises:
Heat insulation, described heat insulation are arranged in the cavity of described rectangular metal waveguide cavity, and the upper surface of this heat insulation is provided with through hole, and the through walls cylindrical lower end of said socket is plugged in the through hole of this heat insulation;
The heat insulation metal-clad, described heat insulation metal-clad is arranged on the lower surface of heat insulation, and this heat insulation metal-clad and rectangular metal waveguide cavity fit tightly.
The material of described heat insulation is a quartz fibre enhancement mode polyimides.
The material of described heat insulation metal-clad is a copper.
Be respectively equipped with the corresponding screwed hole of a pair of size and position on described heat insulation, socket and the cavity.
The shape and the size of described heat insulation and cavity are complementary, in spacing block is fixed on cavity, and the flush of the outer surface of heat insulation and rectangular metal waveguide cavity.
The present invention compared with prior art has the following advantages:
Can be applied to the millimeter wave frequency band under the hot environment, guarantee the electrical property of socket, guarantee Waveguide coaxial well-formed's standing-wave ratio, and insert it into loss and diminish.
Description of drawings
Fig. 1 is the structural representation of a kind of resistant to elevated temperatures Waveguide coaxial structure of the present invention;
Fig. 2 dissects decomposing schematic representation for the structure of a kind of resistant to elevated temperatures Waveguide coaxial structure of the present invention;
Fig. 3 is the structural representation of the heat insulation of a kind of resistant to elevated temperatures Waveguide coaxial structure of the present invention;
Fig. 4 is the structural representation of the rectangular metal waveguide cavity of a kind of resistant to elevated temperatures Waveguide coaxial structure of the present invention.
Embodiment
Below in conjunction with accompanying drawing,, the present invention is done further elaboration through specifying a preferable specific embodiment.
As depicted in figs. 1 and 2, a kind of resistant to elevated temperatures Waveguide coaxial structure comprises: rectangular metal waveguide cavity 5 and setting socket 2 above that, and wherein, rectangular metal waveguide cavity 5 is provided with cavity 6; The resistant to elevated temperatures Waveguide coaxial structure of the present invention also comprises: heat insulation 3 and heat insulation metal-clad 4.
Wherein, as depicted in figs. 1 and 2, heat insulation 3 is arranged in the above-mentioned cavity 6; In the present embodiment; The shape and the size of heat insulation 3 and cavity 6 are complementary, in spacing block 3 is fixed on cavity 6, and the flush of the outer surface of heat insulation 3 and rectangular metal waveguide cavity 5; The upper surface of heat insulation 3 is provided with through hole 31, and the lower end of the cylinder through walls 21 of socket 2 is plugged in the through hole 31 of this heat insulation 3, through the separation of this heat insulation 3, has avoided heat of high temperature directly to be transmitted on the socket 2 from rectangular metal waveguide cavity 5; Because the resistant to elevated temperatures temperature upper limit of the resistant to elevated temperatures Waveguide coaxial structure of decision the present invention depends on the material chosen of heat insulation 3; Therefore; In the present embodiment, the material selection quartz fibre enhancement mode polyimides of heat insulation, thus can guarantee that the present invention can anti-400 ℃ hot environment.
Shown in Fig. 2 and 3, heat insulation metal-clad 4 is arranged on the lower surface of heat insulation 3, and this heat insulation metal-clad 4 fits tightly with rectangular metal waveguide cavity 5, thereby guarantees that rectangular metal waveguide cavity 5 has continuous metal structure; In the present embodiment, the material of heat insulation metal-clad 4 is a copper, makes the insertion loss of the resistant to elevated temperatures Waveguide coaxial structure of the present invention diminish.
Like Fig. 2 ~ shown in Figure 4, be respectively equipped with the corresponding screwed hole of a pair of size and position on heat insulation 3, socket 2 and the cavity 6, in the present embodiment, socket 2 and heat insulation 3 and rectangular metal waveguide cavity 5 are tightened together through metallic screw and screwed hole.
In sum, a kind of resistant to elevated temperatures Waveguide coaxial structure of the present invention can be applied to the millimeter wave frequency band under the hot environment, guarantees the electrical property of socket, guarantees Waveguide coaxial well-formed's standing-wave ratio, and inserts it into loss and diminish.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (5)
1. resistant to elevated temperatures Waveguide coaxial structure comprises: rectangular metal waveguide cavity (5) and be arranged on the socket (2) on the said rectangular metal waveguide cavity (5) is characterized in that described rectangular metal waveguide cavity (5) is provided with cavity (6); Described resistant to elevated temperatures Waveguide coaxial structure also comprises:
Heat insulation (3); Described heat insulation (3) is arranged in the cavity (6) of described rectangular metal waveguide cavity (5); The upper surface of this heat insulation (3) is provided with through hole (31), and the lower end of the cylinder through walls (21) of said socket (2) is plugged in the through hole (31) of this heat insulation (3);
Heat insulation metal-clad (4), described heat insulation metal-clad (4) is arranged on the lower surface of heat insulation (3), and this heat insulation metal-clad (4) fits tightly with rectangular metal waveguide cavity (5).
2. resistant to elevated temperatures Waveguide coaxial structure as claimed in claim 1 is characterized in that, the material of described heat insulation is a quartz fibre enhancement mode polyimides.
3. resistant to elevated temperatures Waveguide coaxial structure as claimed in claim 1 is characterized in that the material of described heat insulation metal-clad (4) is a copper.
4. resistant to elevated temperatures Waveguide coaxial structure as claimed in claim 1 is characterized in that, is respectively equipped with the corresponding screwed hole of a pair of size and position on described heat insulation (3), socket (2) and the cavity (6).
5. resistant to elevated temperatures Waveguide coaxial structure as claimed in claim 1; It is characterized in that; The shape and the size of described heat insulation (3) and cavity (6) are complementary; In spacing block (3) is fixed on cavity (6), the flush of the outer surface of heat insulation (3) and rectangular metal waveguide cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102923661A CN102820498A (en) | 2012-08-17 | 2012-08-17 | High temperature resistant waveguide coaxial structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102923661A CN102820498A (en) | 2012-08-17 | 2012-08-17 | High temperature resistant waveguide coaxial structure |
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| CN102820498A true CN102820498A (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102923661A Pending CN102820498A (en) | 2012-08-17 | 2012-08-17 | High temperature resistant waveguide coaxial structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740764A (en) * | 1987-06-03 | 1988-04-26 | Varian Associates, Inc. | Pressure sealed waveguide to coaxial line connection |
| JPH0525804U (en) * | 1991-08-27 | 1993-04-02 | アルプス電気株式会社 | Coaxial waveguide converter |
| CN1835279A (en) * | 2006-03-16 | 2006-09-20 | 长飞光纤光缆有限公司 | Tunable plasma resonant chamber |
| CN201369379Y (en) * | 2009-03-27 | 2009-12-23 | 西安艾力特电子实业有限公司 | Millimeter wave coaxial waveguide converter |
| CN202737063U (en) * | 2012-08-17 | 2013-02-13 | 上海无线电设备研究所 | High temperature resistant waveguide coaxial structure |
-
2012
- 2012-08-17 CN CN2012102923661A patent/CN102820498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740764A (en) * | 1987-06-03 | 1988-04-26 | Varian Associates, Inc. | Pressure sealed waveguide to coaxial line connection |
| JPH0525804U (en) * | 1991-08-27 | 1993-04-02 | アルプス電気株式会社 | Coaxial waveguide converter |
| CN1835279A (en) * | 2006-03-16 | 2006-09-20 | 长飞光纤光缆有限公司 | Tunable plasma resonant chamber |
| CN201369379Y (en) * | 2009-03-27 | 2009-12-23 | 西安艾力特电子实业有限公司 | Millimeter wave coaxial waveguide converter |
| CN202737063U (en) * | 2012-08-17 | 2013-02-13 | 上海无线电设备研究所 | High temperature resistant waveguide coaxial structure |
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Application publication date: 20121212 |