CN102568985A - Application of broadband high-power ridge waveguide seal window - Google Patents
Application of broadband high-power ridge waveguide seal window Download PDFInfo
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- CN102568985A CN102568985A CN2011104532865A CN201110453286A CN102568985A CN 102568985 A CN102568985 A CN 102568985A CN 2011104532865 A CN2011104532865 A CN 2011104532865A CN 201110453286 A CN201110453286 A CN 201110453286A CN 102568985 A CN102568985 A CN 102568985A
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Abstract
The invention discloses a broadband high-power ridge waveguide seal window structure, belonging to the field of vacuum microwave electronic devices. The broadband high-power ridge waveguide seal window structure comprises a WRD650 dual-ridge waveguide and a compensation waveguide connected with the WRD650 dual-ridge waveguide, wherein a capacitive adjusting diaphragm is adopted for carrying out broadband matching adjustment; and a high-mechanical-strength seal window sheet is tightly connected with the adjusting diaphragm. According to the invention, with regard to selection of materials and design of a matching structure and a sealing-in structure, the defects of a coaxial window and a foreign ridge-waveguide seal window are overcome, and the broadband high-power ride waveguide seal window structure has the characteristics of wide frequency band, low standing wave, low loss, large power tolerance capacity, strong low-pressure resistance, high structural strength, strong environmental suitability and the like.
Description
Technical field
The invention belongs to the vacuum microwave field of electronic devices, specially refer to the application of broadband high-power ridge wave guide hermetyic window.
Background technology
Vacuum-tight window is one of critical component of travelling wave tube delivery of energy parts, and frequency bandwidth characteristics, power characteristic and the reliability of travelling wave tube had significant effects.Vacuum-tight window in the prior art generally has two types: co-axial seal window and waveguide hermetyic window.The co-axial seal window owing to bandwidth, standing wave is low, technology is simple etc., and characteristics are widely used in the delivery of energy structure of broad-band TWT.Then frequency band is narrow, power capacity is big for the coaxial relatively window of waveguide hermetyic window, is mainly used in the delivery of energy structure of arrowband high power travelling wave tube.Can directly adopt coaxial configuration directly to export for middle low power broad-band TWT delivery of energy mode, then adopt the compound output form of changeing double ridged waveguide by the co-axial seal window for high-power broad-band TWT delivery of energy mode usually.Because the restriction of many shortcomings such as coaxial window loss is big, power capacity is little, low pressure is prone to sparking down at present be not suitable for the development need of broadband high power travelling wave tube to high power, high reliability, so the ridge waveguide hermetyic window arises at the historic moment.The ridge waveguide hermetyic window is compared with the normal rectangular waveguide hermetyic window; Because the loading effect of ridge, the ridge waveguide hermetyic window has wideer single mode operation frequency, compares with the co-axial seal window; Have lower loss, thereby more be applicable to the delivery of energy structure of broadband high power travelling wave tube.
The ridge waveguide hermetyic window can directly be used for the delivery of energy structure of broadband high power travelling wave tube on the one hand to be used as vacuum-tight window, also can be used for the Primary Component that airborne broadband high-power transmitter cabinet keeps as air pressure on the other hand.The external product that the ridge waveguide hermetyic window has in those early years just been arranged has the advantages that standing wave is low, loss is little.The structure of external ridge waveguide hermetyic window is ridged organic resin material or the potsherd material that sealing a slice thickness is merely 0.1mm between two standard WRD650 flanges.Because the thermal conductivity of sealing window is low, when the above power of transmission 200W, the maximum temperature on the window is near the thermoae limit ability of material; Deliquescing under the organic material high temperature; The anti-ability drop of opening, window possibly occur burning under heat and negative pressure integrated effect, and unfailing performance is relatively poor.The research of domestic ridge waveguide hermetyic window does not also reach the level of practicability, has mainly that Broadband Matching poor performance, loss are big, the problem of poor reliability.The ridge waveguide hermetyic window of this patent invention has improved the design of external ridge waveguide hermetyic window to a certain extent, has designed the ridge waveguide hermetyic window again from encapsulant, matching structure and sealing structure aspect.
Summary of the invention
The technical issues that need to address of the present invention are; In order to realize to obtain matched well between standard double ridged waveguide and the sealing window; Need to introduce the capacitance adjustment diaphragm, carry out the broadband coupling of ridge waveguide hermetyic window, the purpose of this invention is to provide the application of broadband high-power ridge wave guide hermetyic window.The application of broadband of the present invention high-power ridge wave guide hermetyic window is embodied in two aspects, and one of which is meant the application of ridge waveguide hermetyic window Broadband Matching structure; Its two be meant the hermetyic window sealing structure application, the characteristics of this two aspect possess simultaneously.
In order to realize the object of the invention, the technical scheme that is adopted is following, a kind of broadband high-power ridge wave guide hermetyic window structure; Comprise the WRD650 double ridged waveguide; And the compensation waveguide that links to each other with this waveguide forms, and it is characterized in that, adopted the capacitance adjustment diaphragm to carry out the adjusting of Broadband Matching; What tightly be connected with this adjusting diaphragm is the sealing window of high mechanical properties.Adopting compensation waveguide and capacitance adjustment diaphragm to carry out the WRD650 double ridged waveguide jointly regulates with the Broadband Matching of sealing window.Wherein seal window and adopt high mechanical properties, high temperature resistant, sapphire sheet that loss is low, thickness is 0.25mm, and the compensation waveguide is a rectangular waveguide, mainly plays the impedance conversion effect between ridge waveguide and the sealing medium.Regulating diaphragm is the capacitive metallic membrane; The introducing of regulating diaphragm will cause reflection; The size of reflected wave changes with the size and the different of position of phase place with diaphragm, utilizes this additional reflection to compensate high-end not the matching in the former design just, thereby reaches the Broadband Matching purpose.After optimizing the size and position of regulating diaphragm, the standing-wave ratio of ridge waveguide hermetyic window has reached below 1.2 with interior at 6～18GHz, and loss is less than 0.3dB, and the match curve of ridge waveguide hermetyic window sees Fig. 3 for details.
About the sealing structure of ridge waveguide hermetyic window, said sealing window has adopted sapphire dielectric material and the good metal thin-wall structure of plasticity of rectangle to carry out sealing-in and has formed.The metal material that said plasticity is good is meant stainless steel, oxygen-free copper.Because the sealing surface of window and window closure is a rectangle, the on-circular symmetry of its structure has directly caused the big and skewness of the residual stress of window closure, thereby causes the sealing-in difficulty to strengthen.Ingeniously in the window sealing structure among the present invention program adopt the thin-walled sealing structure and selected the good metal material of plasticity for use, increased the space that discharges residual stress on the one hand, utilized the flow shape ability of part self to reduce the sealing-in residual stress on the other hand.After adopting this measure, solved the sealing-in problem of ridge waveguide hermetyic window.
Ridge waveguide hermetyic window the choosing of this patent invention from material; Overcome the shortcoming of coaxial window and external ridge waveguide hermetyic window in the design of matching structure and sealing structure, characteristics such as have bandwidth, standing wave is low, loss is little, power bearing ability is big, anti-low pressure property is strong, structural strength is high, environmental suitability is strong.Compare with the foreign same type product, power bearing ability and environmental suitability are more outstanding, substitute external product at present comprehensively.
The overall dimension of ridge waveguide hermetyic window, the technical indicator that reaches is seen shown in the table 1.
The technical indicator that table 1 ridge waveguide window delivery of energy structure reaches
Description of drawings
Fig. 1 is a broadband according to the invention high-power ridge wave guide hermetyic window structural representation
Fig. 2 is a ridge waveguide hermetyic window end profiles sketch map
Fig. 3 is the ridge waveguide hermetyic window standing wave curve chart that measures
Embodiment
The ridge waveguide hermetyic window can be used as the vacuum-tight window in the high power travelling wave tube delivery of energy structure of broadband; Constitute the delivery of energy parts of broadband high power travelling wave tube with other waveguide-coaxial transformational structure; The Primary Component that can be used as transmitter again independently uses, and is applied to the coupling device that airborne broadband high-power transmitter keeps as air pressure.
With reference to Fig. 1; Represent broadband according to the invention high-power ridge wave guide hermetyic window structural representation; 1 is a standard double ridged waveguide among the figure, and what be in medium position is redeeming, is referred to as to compensate waveguide 2; Be provided with capacitance adjustment diaphragm 4 with the middle part other end of its symmetry, the sapphire sealing window 3 of high mechanical properties is close in the bottom of compensation waveguide and capacitance adjustment diaphragm.
With reference to figure, represent that said ridge waveguide hermetyic window is a ring flange contour shape, center position demonstrates the waveguide space of being with ridge.With reference to Fig. 3, be illustrated in the change curve of standing wave measured on the said ridge waveguide hermetyic window with frequency.
Claims (2)
1. a broadband high-power ridge wave guide hermetyic window structure comprises the WRD650 double ridged waveguide, and the compensation waveguide that links to each other with this waveguide forms, and it is characterized in that, has adopted the capacitance adjustment diaphragm to carry out the adjusting of Broadband Matching; What tightly be connected with this adjusting diaphragm is the sealing window of high mechanical properties.
2. according to the said broadband of claim 1 high-power ridge wave guide hermetyic window structure, it is characterized in that said sealing window has adopted sapphire dielectric material and the good metal thin-wall structure of plasticity of rectangle to carry out sealing-in and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104532865A CN102568985A (en) | 2011-12-30 | 2011-12-30 | Application of broadband high-power ridge waveguide seal window |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104532865A CN102568985A (en) | 2011-12-30 | 2011-12-30 | Application of broadband high-power ridge waveguide seal window |
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| CN102568985A true CN102568985A (en) | 2012-07-11 |
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| CN2011104532865A Pending CN102568985A (en) | 2011-12-30 | 2011-12-30 | Application of broadband high-power ridge waveguide seal window |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485271A (en) * | 2014-12-10 | 2015-04-01 | 中国电子科技集团公司第十二研究所 | Round flange box type window for space traveling-wave tube and manufacturing method thereof |
| CN104916911A (en) * | 2015-06-19 | 2015-09-16 | 国家电网公司 | Ridge waveguide antenna |
| CN105304439A (en) * | 2015-09-25 | 2016-02-03 | 电子科技大学 | Design method for broadband coaxial window |
| CN110908269A (en) * | 2018-09-18 | 2020-03-24 | 中国计量科学研究院 | Microwave resonator for cold atom fountain clock |
| CN113675547A (en) * | 2021-08-18 | 2021-11-19 | 电子科技大学 | Compact type double-ridge 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 (2)
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| US4286239A (en) * | 1979-02-28 | 1981-08-25 | Siemens Aktiengesellschaft | Gas-tight, high-frequency permeable window arrangement in a coaxial line, particularly for traveling wave tubes |
| CN2185474Y (en) * | 1994-01-19 | 1994-12-14 | 东南大学 | High-frequency window for millimeter wave tube |
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2011
- 2011-12-30 CN CN2011104532865A patent/CN102568985A/en active Pending
Patent Citations (2)
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|---|---|---|---|---|
| US4286239A (en) * | 1979-02-28 | 1981-08-25 | Siemens Aktiengesellschaft | Gas-tight, high-frequency permeable window arrangement in a coaxial line, particularly for traveling wave tubes |
| CN2185474Y (en) * | 1994-01-19 | 1994-12-14 | 东南大学 | High-frequency window for millimeter wave tube |
Non-Patent Citations (2)
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| 周明干等: "毫米波脊形波导窗封接应力仿真研究", 《真空电子技术》, no. 04, 25 August 2011 (2011-08-25) * |
| 王经强等: "脊形波导输出窗结构的设计与分析", 《中国电子学会真空电子学分会第十七届学术年会暨军用微波管研讨会论文集》, 28 July 2010 (2010-07-28) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485271A (en) * | 2014-12-10 | 2015-04-01 | 中国电子科技集团公司第十二研究所 | Round flange box type window for space traveling-wave tube and manufacturing method thereof |
| CN104916911A (en) * | 2015-06-19 | 2015-09-16 | 国家电网公司 | Ridge waveguide antenna |
| CN105304439A (en) * | 2015-09-25 | 2016-02-03 | 电子科技大学 | Design method for broadband coaxial window |
| CN105304439B (en) * | 2015-09-25 | 2018-08-21 | 电子科技大学 | A kind of design method of broadband coaxial window |
| CN110908269A (en) * | 2018-09-18 | 2020-03-24 | 中国计量科学研究院 | Microwave resonator for cold atom fountain clock |
| CN110908269B (en) * | 2018-09-18 | 2021-10-22 | 中国计量科学研究院 | Microwave resonator for cold atom fountain clock |
| CN113675547A (en) * | 2021-08-18 | 2021-11-19 | 电子科技大学 | Compact type double-ridge 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 |
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Application publication date: 20120711 |