CN104022323A - Low-intermodulation coupler cavity - Google Patents
Low-intermodulation coupler cavity Download PDFInfo
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- CN104022323A CN104022323A CN201410212140.5A CN201410212140A CN104022323A CN 104022323 A CN104022323 A CN 104022323A CN 201410212140 A CN201410212140 A CN 201410212140A CN 104022323 A CN104022323 A CN 104022323A
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- cover plate
- cavity
- resonant cavity
- rod
- resonance
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Abstract
The invention relates to a low-intermodulation coupler cavity which comprises a resonant cavity, a resonance cover plate and an adjusting rod. The resonant cavity is a square uncovered cavity. The resonance cover plate comprises a rectangular cover plate, and the center of the cover plate is provided with a rectangular fit platen. Length and width of the fit platen are less than length and width of the cover plate. The fit platen and the resonant cavity are in interference fit. Upper circumference of the cover plate is provided with crimping blocks which are positioned on the outside of the fit platen. The resonance cover plate and the resonant cavity are fixed together through bolts. A coupled cavity is formed between the resonant cavity and the resonance cover plate. A connector is connected to the outer wall of the resonant cavity. A boss is arranged at the junction of the resonant cavity and the connector. The adjusting rod is installed on the inner wall of the resonant cavity. The low-intermodulation coupler cavity has advantages of simple structure, reliable mechanical property, good intermodulation stability, high assembly efficiency, low cost, strong adaptability to the environment and long service life, and is suitable for mass production.
Description
Technical field
The present invention relates to coaxial interconnection technique, relate in particular to a kind of coupler cavity of low intermodulation.
Background technology
At present, for current conventional coupler cavity, direct use cannot realize low intermodulation performance, if will realize low intermodulation performance, generally adopts cushioning copper sheet between connector and cavity, and between cavity and cover plate, the technique of cushioning copper sheet is carried out.Conventional coupler structure, during assembled product, is installed to connector on fixed station, after cushioning one copper sheet between connector and fixed station, then carries out fastening; When cover plate is installed on cavity, also wants after cushioning one copper sheet, then carry out fastening; Adjustment screw is all to use plastic shaping.The conventional coupler cavity of this kind of structure has four large drawbacks: the one, and efficiency of assembling is low, no matter is mounted connector or installation cover plate, all needs cushioning copper sheet, and operation is loaded down with trivial details, and easily neglected loading; The 2nd, consistency is poor, because the position of copper sheet cushioning cannot be unified, cause between connector and cavity, and not of uniform size the causing of contact resistance between cover plate and cavity, the electric property transmission between it also just cannot be consistent, consistency extreme difference; The 3rd, intermodulation poor stability, because the coupler assembling of this kind of structure time needs cushioning copper sheet, has increased the quantity of part virtually, and part the more, more easily has a negative impact to intermodulation index, causes product cannot realize low intermodulation performance stable; The 4th, electric property poor stability, because adjustment screw 7 is all used plastic shaping, within the stressed rear short time of fine setting, deformation quantity is less, to product electricity function index, can not cause too much influence, but along with the growth of time, deflection is inevitable to be increased thereupon, very easily cause the deterioration of product performance index, even cannot use, and when finely tuning, because adjustment screw is used plastic injection-moulded forming, easily cause the damage of thread.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of coupler cavity of low intermodulation, and simple in structure, reliable in mechanical performance, intermodulation good stability, packaging efficiency are high, with low cost, strong to environmental suitability, long service life, can produce in enormous quantities.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of coupler cavity of low intermodulation, comprise resonant cavity, resonance cover plate and adjusting rod, described resonant cavity is a square uncovered cavity, described resonance cover plate comprises the cover plate of a rectangle, cover plate center is provided with the cooperation of a rectangle and presents a theatrical performance as the last item on a programme, the length that described cooperation is presented a theatrical performance as the last item on a programme and width are less than length and the width of described cover plate, described cooperation is presented a theatrical performance as the last item on a programme and resonant cavity interference fit, on described cover plate, be circumferentially with crimping piece, described crimping piece is positioned at the outside that described cooperation is presented a theatrical performance as the last item on a programme, described resonance cover plate is fixed together by screw and resonant cavity, between resonant cavity and resonance cover plate, form a coupling cavity, on described resonant cavity outer wall, be connected with connector, the junction of described resonant cavity and connector is provided with boss, described adjusting rod is comprised of adjusting screw(rod) and insulation insulated column, described adjusting screw(rod) is cylindrical structural, bottom is provided with the first cavity that a cross sectional shape is T shape, described insulation insulated column is cylindrical structural, its top is provided with the first projection that a cross sectional shape is T shape, described the first cavity and the first projection interference fit form integral structure, described adjusting rod is installed on the inwall of described resonant cavity.
The coupler cavity of above-mentioned a kind of low intermodulation, wherein, described adjusting screw(rod) be take metal as material, and described insulation insulated column be take ambroin as material.
Beneficial effect of the present invention is:
1. the coupler cavity of low intermodulation of the present invention, be that its resonant cavity is a square uncovered cavity, the position being connected with connector at resonant cavity is provided with connection boss, resonance cover plate is a rectangle cover plate, coordinating presents a theatrical performance as the last item on a programme forms interference fit with resonant cavity, in resonance cover plate surrounding, is provided with crimping piece; After connector and resonant cavity assembling and after resonance cover plate and resonant cavity assembling, reduce to greatest extent contact resistance between the two, guarantee the good transmission of electric property, the number of spare parts of optimizing product, reduce the assembly difficulty of product, the indicator consilience of improving product, realizes the low intermodulation performance of product; And resonant cavity and resonance cover plate can adopt the technique of high temperature microdiecast to carry out disposal molding, reduce the waste of raw materials of product processing, simplify product manufacturing procedure, shorten the process-cycle;
2. adjusting rod is installed on the inwall of resonant cavity, can use screwdriver adjusting elasticity, the fine setting of realization to product electricity function index, adjusting screw(rod) is metal material, product guarantees that adjusting screw(rod) can not be out of shape after stressed, even after the long-time use of product, still can keep index to stablize, do not change, insulation insulated column is ambroin material, adopt Shooting Technique and adjusting screw(rod) make an integral body assurance not can with resonant cavity short circuit.
Accompanying drawing explanation
Fig. 1 is that the present invention assembles schematic diagram
Fig. 2 is the vertical view cutaway drawing of installation diagram of the present invention
Fig. 3 is the partial enlarged drawing of I of the present invention
Fig. 4 is the partial enlarged drawing of II of the present invention
Fig. 5 is the partial enlarged drawing of III of the present invention
Embodiment
A kind of coupler cavity of low intermodulation as shown in the figure, comprise resonant cavity 1, resonance cover plate 2 and adjusting rod 3, described resonant cavity 1 is a square uncovered cavity, described resonance cover plate 2 comprises the cover plate 4 of a rectangle, cover plate 4 centers are provided with the cooperation of a rectangle and present a theatrical performance as the last item on a programme 5, described cooperation length and the width that 5 length and width are less than described cover plate 4 of presenting a theatrical performance as the last item on a programme, described cooperation present a theatrical performance as the last item on a programme 5 with resonant cavity 1 interference fit, on described cover plate 4, be circumferentially with crimping piece 6, described crimping piece 6 is positioned at present a theatrical performance as the last item on a programme 5 outside of described cooperation, described resonance cover plate 2 is fixed together by screw 7 and resonant cavity 1, between resonant cavity 1 and resonance cover plate 2, form a coupling cavity 8, on described resonant cavity 1 outer wall, be connected with connector 9, described resonant cavity 1 is provided with boss 10 with the junction of connector 9, the height h of described boss 10 is 0.8-3.5mm, described adjusting rod 3 is comprised of adjusting screw(rod) 11 and insulation insulated column 12, described adjusting screw(rod) 11 is cylindrical structural, it take metal as material, bottom is provided with the first cavity 13 that a cross sectional shape is T shape, described insulation insulated column 12 is cylindrical structural, it take ambroin as material, its top is provided with the first projection 14 that a cross sectional shape is T shape, described the first cavity 13 and the first projection 14 interference fit form integral structure, described adjusting rod 3 is installed on the inwall of described resonant cavity 1.
In concrete enforcement, resonant cavity and resonance cover plate can adopt high temperature microdiecast technique directly to carry out moulding, reduce the waste of raw materials of product processing, simplify product manufacturing procedure, shorten the process-cycle; Adjusting rod can directly enter adjusting screw(rod) by the injection moulding of insulation insulated column and carry out moulding, guarantees that adjusting screw(rod) can not be out of shape after stressed, even after the long-time use of product, product still can keep index to stablize, do not change.
During assembling, first adjusting rod and radio frequency connector are installed on resonant cavity, then other parts of low intermodulation coupler inside are packed into, finally resonance cover plate is installed on resonant cavity, and use adjusting rod to finely tune electrical performance indexes, make index reach predetermined technique index.
The coupler cavity of low intermodulation of the present invention, be that its resonant cavity is a square uncovered cavity, the position being connected with connector at resonant cavity is provided with connection boss, resonance cover plate is a rectangle cover plate, coordinating presents a theatrical performance as the last item on a programme forms interference fit with resonant cavity, in resonance cover plate surrounding, is provided with crimping piece; After connector and resonant cavity assembling and after resonance cover plate and resonant cavity assembling, reduce to greatest extent contact resistance between the two, guarantee the good transmission of electric property, the number of spare parts of optimizing product, reduce the assembly difficulty of product, the indicator consilience of improving product, realizes the low intermodulation performance of product; And resonant cavity and resonance cover plate can adopt the technique of high temperature microdiecast to carry out disposal molding, reduce the waste of raw materials of product processing, simplify product manufacturing procedure, shorten the process-cycle; Adjusting rod is installed on the inwall of resonant cavity, can use screwdriver adjusting elasticity, the fine setting of realization to product electricity function index, adjusting screw(rod) is metal material, product guarantees that adjusting screw(rod) can not be out of shape after stressed, even after the long-time use of product, still can keep index to stablize, do not change, insulation insulated column is ambroin material, adopt Shooting Technique and adjusting screw(rod) make an integral body assurance not can with resonant cavity short circuit.
Here description of the invention and application is illustrative, not wants that therefore, the present invention is not subject to the restriction of the present embodiment by scope restriction of the present invention in the above-described embodiments, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (2)
1. the coupler cavity of a low intermodulation, it is characterized by, comprise resonant cavity, resonance cover plate and adjusting rod, described resonant cavity is a square uncovered cavity, described resonance cover plate comprises the cover plate of a rectangle, cover plate center is provided with the cooperation of a rectangle and presents a theatrical performance as the last item on a programme, the length that described cooperation is presented a theatrical performance as the last item on a programme and width are less than length and the width of described cover plate, described cooperation is presented a theatrical performance as the last item on a programme and resonant cavity interference fit, on described cover plate, be circumferentially with crimping piece, described crimping piece is positioned at the outside that described cooperation is presented a theatrical performance as the last item on a programme, described resonance cover plate is fixed together by screw and resonant cavity, between resonant cavity and resonance cover plate, form a coupling cavity, on described resonant cavity outer wall, be connected with connector, the junction of described resonant cavity and connector is provided with boss, described adjusting rod is comprised of adjusting screw(rod) and insulation insulated column, described adjusting screw(rod) is cylindrical structural, bottom is provided with the first cavity that a cross sectional shape is T shape, described insulation insulated column is cylindrical structural, its top is provided with the first projection that a cross sectional shape is T shape, described the first cavity and the first projection interference fit form integral structure, described adjusting rod is installed on the inwall of described resonant cavity.
2. the coupler cavity of a kind of low intermodulation as claimed in claim 1, is characterized by, and described adjusting screw(rod) be take metal as material, and described insulation insulated column be take ambroin as material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212140.5A CN104022323A (en) | 2014-05-19 | 2014-05-19 | Low-intermodulation coupler cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212140.5A CN104022323A (en) | 2014-05-19 | 2014-05-19 | Low-intermodulation coupler cavity |
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| Publication Number | Publication Date |
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| CN104022323A true CN104022323A (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212140.5A Pending CN104022323A (en) | 2014-05-19 | 2014-05-19 | Low-intermodulation coupler cavity |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201345404Y (en) * | 2008-12-08 | 2009-11-11 | 杭州紫光网络技术有限公司 | Microwave directional coupler with crimp type connector |
| CN202058841U (en) * | 2011-04-07 | 2011-11-30 | 安徽海特微波通信有限公司 | Coupler with waterproof structure |
| CN202772252U (en) * | 2012-09-18 | 2013-03-06 | 南京广顺网络通信设备有限公司 | High intermodulation coupler |
| CN103280620A (en) * | 2013-05-10 | 2013-09-04 | 宜兴亚泰科技有限公司 | Cavity coupler |
| CN203871452U (en) * | 2014-05-19 | 2014-10-08 | 镇江市明基电子有限公司 | Low intermodulation coupler cavity |
-
2014
- 2014-05-19 CN CN201410212140.5A patent/CN104022323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201345404Y (en) * | 2008-12-08 | 2009-11-11 | 杭州紫光网络技术有限公司 | Microwave directional coupler with crimp type connector |
| CN202058841U (en) * | 2011-04-07 | 2011-11-30 | 安徽海特微波通信有限公司 | Coupler with waterproof structure |
| CN202772252U (en) * | 2012-09-18 | 2013-03-06 | 南京广顺网络通信设备有限公司 | High intermodulation coupler |
| CN103280620A (en) * | 2013-05-10 | 2013-09-04 | 宜兴亚泰科技有限公司 | Cavity coupler |
| CN203871452U (en) * | 2014-05-19 | 2014-10-08 | 镇江市明基电子有限公司 | Low intermodulation coupler cavity |
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Application publication date: 20140903 |
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