CN1310373C - Novel high-power microwave vacuum insulating window - Google Patents
Novel high-power microwave vacuum insulating window Download PDFInfo
- Publication number
- CN1310373C CN1310373C CNB2005100376523A CN200510037652A CN1310373C CN 1310373 C CN1310373 C CN 1310373C CN B2005100376523 A CNB2005100376523 A CN B2005100376523A CN 200510037652 A CN200510037652 A CN 200510037652A CN 1310373 C CN1310373 C CN 1310373C
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- Prior art keywords
- waveguide
- power microwave
- microwave vacuum
- novel high
- sealing medium
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 abstract description 11
- 238000001125 extrusion Methods 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Waveguide Connection Structure (AREA)
Abstract
本发明公开了一种新型高功率微波真空隔离窗，一种新型高功率微波真空隔离窗，包括相接的左、右侧管型波导及隔离左、右侧管型波导的密封介质片，其特征在于：位于左侧管型波导接口处密封介质片采用聚四氟乙烯材料；右侧管型波导端面有环形突起，通过挤压与密封介质片密封配合。这种新型高功率微波真空隔离窗具有结构简单，介质损耗小，易于加工，成本低，结实耐用等优点，其成本低的特点更适用于工业场合。
The invention discloses a novel high-power microwave vacuum isolation window. A novel high-power microwave vacuum isolation window comprises connected left and right tubular waveguides and sealing dielectric sheets for isolating the left and right tubular waveguides. It is characterized in that: the sealing medium sheet at the interface of the left tubular waveguide is made of polytetrafluoroethylene material; the end face of the right tubular waveguide has an annular protrusion, which is sealed and matched with the sealing medium sheet through extrusion. This new type of high-power microwave vacuum isolation window has the advantages of simple structure, small dielectric loss, easy processing, low cost, strong and durable, and its low cost is more suitable for industrial occasions.
Description
Technical field
The present invention relates to microwave regime, concrete is a kind of novel high-power microwave vacuum insulating window.
Background technology
High-power microwave vacuum insulating window acting as in microwave system: realize vacuum seal, isolation between atmospheric duct and the vacuum waveguide, do not influence the transmission of High-Power Microwave between atmospheric duct and vacuum waveguide simultaneously.At home and abroad, the tradition high-power microwave vacuum insulating window generally uses pottery, glass as the vacuum seal medium, hermetically-sealed construction generally adopts the welded seal mode, and the method for sealing medium sheet by vacuum brazing is fixed in the microwave waveguide, realizes the isolation of vacuum and atmosphere.The tradition high-power microwave vacuum insulating window is in the part occasion, particularly when using, industrial circle has two problems: first, its pottery or glass capsulation medium are a kind of fragile materials, when when sparking (rf arcing) appears in its near surface, cause the dieelctric sheet thermal stress inhomogeneous, cause dieelctric sheet to break, isolation window is damaged.The second, the processing technology complexity of traditional microwave vacuum insulating window, cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of novel high-power microwave vacuum insulating window.The dieelctric sheet that occurs at traditional high-power microwave vacuum insulating window easily breaks and problem such as processing technology complexity, adopts polytetrafluoroethylmaterial material as the sealing medium sheet, adopts edge of a knife extruded sealing structure simplified processing process.
Technical scheme of the present invention
A kind of novel high-power microwave vacuum insulating window comprises left and right side cast waveguide of joining and the sealing medium sheet of isolating the waveguide of left and right side cast, it is characterized in that: be positioned at cast Waveguide interface place, left side sealing medium sheet and adopt polytetrafluoroethylmaterial material; Right side cast Waveguide end face has annular projection, is sealed and matched by extruding and sealing medium sheet.
Described novel high-power microwave vacuum insulating window is characterized in that: described left side cast Waveguide interface end face is a step trough, and the sealing medium sheet is placed in the groove, and the annular projection cross section of the end face of right side cast waveguide is an edge of a knife shape.
Operation principle of the present invention
The vacuum seal principle: plastic medium sheet and the assembling of metal ring projections press, dieelctric sheet can form an amount of distortion under the extruding of projection, thereby realizes the vacuum seal isolation.
Circuit theory: cast waveguide equivalence in both sides is a ribbon feeder, the equivalence of dieelctric sheet fill area is the high frequency LC frequency-selective circuit with the parallel transmission line parallel, the microwave energy of operating frequency in LC frequency-selective circuit passband passes through fully like this, and therefore this novel isolation window is applicable to arrowband High-Power Microwave transmission.According to microwave operational frequencies, select suitable waveguide dimensions for use, simultaneously by condition of resonance calculate get final product corresponding dieelctric sheet size.
Effect of the present invention
The application of plastic seal material has solved the legacy windows dieelctric sheet difficult problem of breaking, and makes novel window durable; And edge seal is simple in structure, is easy to processing, and low particularly its characteristic do not damaged under frequent sparking condition of cost is that traditional ceramics window, windowpane are incomparable.Its through-put power can reach hundred KW level quasi-stable states, and bandwidth of operation is the arrowband, input vswr ρ＜1.25, and dielectric loss is little.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Referring to accompanying drawing.A kind of novel high-power microwave vacuum insulating window comprises two left and right side cast waveguides (2,3) of joining and the sealing medium sheet (1) of isolating two cast waveguides, is positioned at cast Waveguide interface place sealing medium sheet (1) and adopts polytetrafluoroethylmaterial material; A cast waveguide (2) interface end face is step trough (4), and another cast waveguide (3) interface end face has annular projection (5).The cross section of annular projection (5) is an edge of a knife shape, and its material is a stainless steel.Sealing medium sheet (1) is placed in the step trough (4) of cast waveguide (2), again cast waveguide (3) is alignd with cast waveguide (2) interface, in the left side, right side cast waveguide (2,3) two ends install two flanges, use bolt, annular projection (5) is pushed down sealing medium sheet (1), is sealed and matched.
This novel isolation window is used in the 2.45GHz of national big science engineering HT-7 superconducting Tokamak microwave-driven current system at present, plays the effect of separating atmospheric side waveguide and HT-7 superconducting Tokamak vacuum chamber inner waveguide, stable performance in the practical application.
In the 2.45GHz of HT-7 microwave-driven current system, transmission waveguide is that (size: 109.2mm * 54.6mm), the dieelctric sheet of the novel high-power microwave vacuum insulating window of application is of a size of the waveguide of BJ-22 standard rectangular: 129.2mm * 76.5mm.
In the microwave-driven current testing of HT-7, novel high-power microwave vacuum insulating window has stood the test of one minute quasi-stable state High-Power Microwave of 100KW, has proved the engineering reliability of this isolation window.Particularly under the bad situation of microwave system load matched, the vacuum waveguide segment is frequently struck sparks, but novel isolation window can not damage, and shows fail safe, reliability far above legacy windows, has reached the intended purposes of invention.
Claims (2)
1, a kind of novel high-power microwave vacuum insulating window comprises left and right side cast waveguide of joining and the sealing medium sheet of isolating the waveguide of left and right side cast, it is characterized in that: be positioned at cast Waveguide interface place, left side sealing medium sheet and adopt polytetrafluoroethylmaterial material; Right side cast Waveguide end face has annular projection, is sealed and matched by extruding and sealing medium sheet.
2, novel high-power microwave vacuum insulating window according to claim 1 is characterized in that: described left side cast Waveguide interface end face is a step trough, and the sealing medium sheet is placed in the groove, and the annular projection cross section of the end face of right side cast waveguide is an edge of a knife shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100376523A CN1310373C (en) | 2005-01-07 | 2005-01-07 | Novel high-power microwave vacuum insulating window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100376523A CN1310373C (en) | 2005-01-07 | 2005-01-07 | Novel high-power microwave vacuum insulating window |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1665064A CN1665064A (en) | 2005-09-07 |
| CN1310373C true CN1310373C (en) | 2007-04-11 |
Family
ID=35036022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100376523A Expired - Fee Related CN1310373C (en) | 2005-01-07 | 2005-01-07 | Novel high-power microwave vacuum insulating window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1310373C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134833B (en) * | 2014-07-31 | 2015-07-01 | 西北核技术研究所 | High-power microwave (HPM) medium window for improving vacuum side power capacity |
| CN105337010B (en) * | 2015-10-22 | 2019-05-21 | 南京灏众通信技术有限公司 | A kind of novel low intermodulation double ridged waveguide circulator/isolator |
| CN109149039A (en) * | 2018-08-15 | 2019-01-04 | 浙江绿舟科技有限公司 | A kind of micro- distribution of work device of microwave |
| CN113193312B (en) * | 2021-04-25 | 2022-05-03 | 电子科技大学 | Circular waveguide TE0nMode ultra-wideband output window structure |
| CN113422178B (en) * | 2021-05-24 | 2022-11-25 | 中国原子能科学研究院 | Waveguide window |
| CN114447541A (en) * | 2022-02-18 | 2022-05-06 | 湖南航天诚远精密机械有限公司 | Broadband high-power double-ridge waveguide sealing window and design and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0696895A (en) * | 1992-05-29 | 1994-04-08 | Leybold Ag | Window structure and its assembly method |
| JPH08154001A (en) * | 1994-11-29 | 1996-06-11 | Nec Corp | Pillbox type vacuum window |
| CN2377794Y (en) * | 1999-05-21 | 2000-05-10 | 东北师范大学 | Microwave ion source ceramic self-target strong-current neutron tube |
-
2005
- 2005-01-07 CN CNB2005100376523A patent/CN1310373C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0696895A (en) * | 1992-05-29 | 1994-04-08 | Leybold Ag | Window structure and its assembly method |
| JPH08154001A (en) * | 1994-11-29 | 1996-06-11 | Nec Corp | Pillbox type vacuum window |
| CN2377794Y (en) * | 1999-05-21 | 2000-05-10 | 东北师范大学 | Microwave ion source ceramic self-target strong-current neutron tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1665064A (en) | 2005-09-07 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070411 Termination date: 20100208 |