CN203850398U - Microwave guide flange sealing window - Google Patents
Microwave guide flange sealing window Download PDFInfo
- Publication number
- CN203850398U CN203850398U CN201420202894.8U CN201420202894U CN203850398U CN 203850398 U CN203850398 U CN 203850398U CN 201420202894 U CN201420202894 U CN 201420202894U CN 203850398 U CN203850398 U CN 203850398U
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- China
- Prior art keywords
- window
- sealing
- waveguide
- thin slice
- hermetyic
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Abstract
The utility model discloses a microwave guide flange sealing window. The sealing window comprises a sealing window (3) disposed between a waveguide body A (1) and a waveguide body B (2); the sealing window (3) comprises a window subplate (4), a window stage (5) disposed on the window subplate (4), a sealing medium sheet (6) arranged inside the window stage (5); and the sealing medium sheet (6) is made from polyimide. According to the microwave guide flange sealing window provided by the utility model, the sealing window composed of the polyimide medium sheet is arranged between connection flange plates between the two waveguide bodies; the polyimide has the performance of high temperature resistance, large tensile strength and high wave-transparence, so the sealing window is excellent in manufacturability, and unidirectional sealing of the waveguide is achieved; with the waveguide being internally injected with nitrogen or dry air, the power launching capacity of a microwave guide is raised to a large extent; and with adoption of the polyimide material, the high-frequency loss is reduced, and the sealability is ensured.
Description
Technical field
The utility model relates to a kind of hermetyic window, particularly relates to the microwave waveguide flange dish hermetyic window installing additional between a kind of L of being applicable to, S, C, X and Ku wave band rectangle or circular waveguide ring flange.
Background technology
Waveguide hermetyic window is gas or the vacuum obstacle waveguide cover of design in order to make the transmission of electromagnetic wave substantial transparent, thereby the connecting end surface of the waveguide that is mainly arranged on the port of waveguide or be connected is realized the sealing to waveguide, by waveguide hermetyic window, waveguide is sealed and can improve the transmitting capacity of microwave power or prevent waveguide internal corrosion.Thereby existing hermetyic window mainly adopts polytetrafluoroethylene to realize the sealing to waveguide as obstacle, as obtain a kind of Ku frequency range waveguide hermetyic window (applying date: 2012.12.31 of People's Republic of China's china national practical new-type patent, open day: 2013.07.10), its technical scheme is: mainly comprise C waveguide, D waveguide and sealing medium thin slice, comprise in two adpting flanges between C waveguide and D waveguide, on the connecting end surface of one of them adpting flange, offer sealing medium mounting groove, sealing medium thin slice is arranged in described sealing medium mounting groove, described media sheet is ptfe sheet.Above-mentioned utility model is created can play certain sealing function to waveguide, and still, the machinability of employing polytetrafluoroethylmaterial material is poor and thickness is large, loss is large, cost of manufacture is high, and sealing is poor.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide that a kind of machinability is better, thin thickness, loss is low, cost of manufacture is low and sealing is strong, is applicable to a kind of microwave waveguide flange dish hermetyic window installing additional between L, S, C, X and Ku wave band rectangle or circular waveguide ring flange.
The purpose of this utility model is achieved through the following technical solutions: a kind of microwave waveguide flange dish hermetyic window, it comprises the hermetyic window being arranged between wave conductor A and wave conductor B, hermetyic window comprises window backing plate, is opened in the window step on window backing plate and is arranged on the sealing medium thin slice in window step, and described sealing medium thin slice adopts polyimides to make.
On the connecting end surface of described wave conductor A, be installed with adpting flange A, be installed with adpting flange B on the connecting end surface of wave conductor B, hermetyic window is arranged on the connecting end surface of flange A or flange B and press-fits fixing by the end face of another flange.
Between described window step and sealing medium thin slice, it is interference fit.
Described sealing medium thin slice is bonded in window step by epoxide-resin glue.
The thickness of described sealing medium thin slice is 0.02mm～0.1mm.
The degree of depth of described window step is all lower than the thickness of sealing medium thin slice.
Described window backing plate is silver-plated copper pad.
Compared with prior art, the utlity model has following beneficial effect:
1) between the mounting flange between two wave conductors, install and form hermetyic window by polyimides media sheet, due to polyimides have high temperature resistant, tensile strength is large and high wave penetrate capability, make hermetyic window have the advantages that processing technology is good, waveguide is formed to one-way sealing effect, in waveguide, be filled with nitrogen or dry air significantly high microwave waveguide power emission capacity, adopt polyimide material reduced high-frequency loss electromagnetism and ensured sealing;
2) between window step and sealing medium thin slice for interference fit and sealing medium thin slice are bonded in window step by epoxide-resin glue, thereby further improved the sealing of hermetyic window;
3) the utility model high-frequency loss is less than 0.02dB, and standing-wave ratio is less than 1.2, is applicable to hermetically-sealed construction between L, S, C, X and Ku wave band rectangle that frequency is 1GHz～18GHzDE or circular waveguide ring flange;
4) the utility model is simple in structure, and dielectric thickness is little, and cost of manufacture is low, and good airproof performance.
Brief description of the drawings
Fig. 1 is structure perspective view of the present utility model;
Fig. 2 is use schematic diagram of the present utility model;
In figure, 1-wave conductor A, 2-wave conductor B, 3-hermetyic window, 4-window backing plate, 5-window step, 6-sealing medium thin slice, 7-flange A, 8-flange B.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As illustrated in fig. 1 and 2, a kind of microwave waveguide flange dish hermetyic window, it comprises the hermetyic window 3 being arranged between wave conductor A1 and wave conductor B2, hermetyic window 3 comprises window backing plate 4, is opened in the window step 5 on window backing plate 4 and is arranged on the sealing medium thin slice 6 in window step 5, and described sealing medium thin slice 6 adopts polyimides to make.
On the connecting end surface of described wave conductor A1, be installed with adpting flange A7, be installed with adpting flange B8 on the connecting end surface of wave conductor B2, hermetyic window 3 is arranged on the connecting end surface of flange A7 or flange B8 and press-fits fixing by the end face of another flange.
Between described window step 5 and sealing medium thin slice 6, can adopt mechanical tight fit connection, preferably adopt interference fit, can make sealing medium thin slice can with window step tight fit, strengthen the tightness between window step and sealing medium thin slice, thereby the sealing that has strengthened hermetyic window, has reduced high-frequency loss.
Described sealing medium thin slice 6 can be bonded in window step 5 by the high-strength bonding agent of high temperature resistant low-temperature flexibility, preferably adopt and carry out bonding to the high epoxide-resin glue of polyimides adhesive strength, thereby further improve the sealing of hermetyic window 3, make hermetyic window 3 can bear larger the blowing pressure, the blowing pressure that maximum can be born is 0.2MPa greatly.
The thickness of described sealing medium thin slice 6 is 0.02mm～0.1mm, thereby has reduced the thickness of hermetyic window 3; The degree of depth of described window step 5 is all lower than the thickness of sealing medium thin slice 6, both ensured sealing medium thin slice 6 can with the closely cooperating of window step 5, also ensured that end face of flange can press-fit sealing medium thin slice 6, has the effect of better fixing seal media sheet 6.
Preferably, described window backing plate 4 is silver-plated copper pad.
Claims (7)
1. a microwave waveguide flange dish hermetyic window, it is characterized in that: it comprise be arranged on wave conductor A(1) and wave conductor B(2) between hermetyic window (3), hermetyic window (3) comprises window backing plate (4), be opened in the window step (5) on window backing plate (4) and be arranged on the sealing medium thin slice (6) in window step (5), and described sealing medium thin slice (6) adopts polyimides to make.
2. a kind of microwave waveguide flange dish hermetyic window according to claim 1, it is characterized in that: described wave conductor A(1) connecting end surface on be installed with adpting flange A(7), wave conductor B(2) connecting end surface on be installed with adpting flange B(8), hermetyic window (3) is arranged on flange A(7) or flange B(8) connecting end surface on and press-fit fixing by the end face of another flange.
3. a kind of microwave waveguide flange dish hermetyic window according to claim 1, is characterized in that: between described window step (5) and sealing medium thin slice (6), be interference fit.
4. a kind of microwave waveguide flange dish hermetyic window according to claim 1, is characterized in that: described sealing medium thin slice (6) is bonded in window step (5) by epoxide-resin glue.
5. a kind of microwave waveguide flange dish hermetyic window according to claim 1, is characterized in that: the thickness of described sealing medium thin slice (6) is 0.02mm～0.1mm.
6. a kind of microwave waveguide flange dish hermetyic window according to claim 1, is characterized in that: the degree of depth of described window step (5) is all lower than the thickness of sealing medium thin slice (6).
7. a kind of microwave waveguide flange dish hermetyic window according to claim 1, is characterized in that: described window backing plate (4) is silver-plated copper pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202894.8U CN203850398U (en) | 2014-04-24 | 2014-04-24 | Microwave guide flange sealing window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202894.8U CN203850398U (en) | 2014-04-24 | 2014-04-24 | Microwave guide flange sealing window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850398U true CN203850398U (en) | 2014-09-24 |
Family
ID=51563375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202894.8U Expired - Fee Related CN203850398U (en) | 2014-04-24 | 2014-04-24 | Microwave guide flange sealing window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943917A (en) * | 2014-04-24 | 2014-07-23 | 成都锦江电子系统工程有限公司 | Sealing window for microwave waveguide flange plates |
-
2014
- 2014-04-24 CN CN201420202894.8U patent/CN203850398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943917A (en) * | 2014-04-24 | 2014-07-23 | 成都锦江电子系统工程有限公司 | Sealing window for microwave waveguide flange plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20190424 |