CN204793129U - Novel microwave filter encapsulation shielding case - Google Patents
Novel microwave filter encapsulation shielding case Download PDFInfo
- Publication number
- CN204793129U CN204793129U CN201420713693.4U CN201420713693U CN204793129U CN 204793129 U CN204793129 U CN 204793129U CN 201420713693 U CN201420713693 U CN 201420713693U CN 204793129 U CN204793129 U CN 204793129U
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- shielding box
- shielding
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- box body
- circuit board
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Abstract
The utility model belongs to microwave radio frequency filter provides a novel microwave filter encapsulation shielding case, include: shielding box body base [ 1 ], isolator [ 3 ], circuit board [ 4 ], shielding box body apron [ 5 ], shielding box body base [ 1 ] has the cylinder boss in isolator [ 3 ] installation department, peripheral beaten installation screw hole [ 2 ] of cylinder boss, and inside the milling of shielding box body base [ 1 ] has the shielding cavity that has the degree of depth and width, and install circuit board [ 4 ] in the shielding cavity, whole gold or the silver of having plated of bottom or cavity in the shielding cavity, shielding box body base [ 1 ] mills in installation department of shielding box cover [ 5 ] has the degree of depth and the same shirt rim of shielding box body apron thickness, and shielding box cover [ 5 ] lid forms embedding nature lock with shielding box body base [ 1 ] in the shirt rim.
Description
Technical field
The invention belongs to microwave radio filter, relate to the barrier enclosure structure of inline package microwave filter.
Background technology
For microwave filter, the shielding of filter box body, the filtering performance of shielding to filter between especially filter input, output is most important.Be 03257670.6 at application number and be called that in the Chinese utility model patent of ' encapsulation shielding box for microwave filter ', in patent of invention, signal inputs, exports the type of attachment adopting SAM radio frequency connector, but this kind of type of attachment requires comparatively large to locus, be unfavorable for that the miniaturization of microwave module is integrated.For the ease of the miniaturized Integrated design of microwave module, general employing inline package filter, but when the filter of inline package form uses at present, require high to mounting structure surface smoothness.When mounting surface evenness is bad, microwave signal is leaked serious, signal leaks into output from input, have a strong impact on filter effect, in this case, often need to add one deck tin thin paper or shielding cloth, improve the shielding of filter input, outlet chamber, realize the Out-of-band rejection effect of filter.The method not only increases installation workload, and filter effect consistency cannot be guaranteed, and the filter effect under high/low temperature also can be affected; In addition, when the contact pin on filter insulator is through metallic cold plate, contact pin is in atmosphere exposed, the connection standing wave of impact and circuit board, and loss increases.
Summary of the invention
Goal of the invention: provide a kind of novel encapsulation shielding box for microwave filter, overcomes the problem of the input of existing inline package microwave filter, outlet chamber isolation difference, prevents microwave signal from directly leaking into output from input, improves the outer degree of suppression of filter band; Reduce the requirement of mounting structure surface flatness, reduce modular structure part requirement on machining accuracy; Improve the filter effect under high and low temperature environment; Improve filter and be connected standing wave with circuit board.
Technical scheme: a kind of novel encapsulation shielding box for microwave filter, comprising:
Shielding box susceptor body [1], isolator [3], circuit board [4], shielding box body cover plate [5];
Shielding box susceptor body [1] has cylinder boss in isolator [3] installation place, cylinder boss periphery is equipped with installs screwed hole [2], shielding box susceptor body [1] inside is milled with the shielding cavity with the degree of depth and width, circuit board [4] is arranged in described shielding cavity, and described shielding cavity inner bottom part or cavity entirety are coated with gold or silver; Shielding box susceptor body [1] is milled with the degree of depth shirt rim identical with shielding box body cover sheet thickness in shielding box cover plate [5] installation place, shielding box cover plate [5] covers in shirt rim and shielding box susceptor body [1] forms embedding nature fastening.
Pedestal [1] shape of shielding box body is circular or regular polygon, and when shielding box susceptor body [1] selects circular or regular polygon, shielding box body cover plate [5] also corresponds to the polygon of circle or rule.
Circuit board [4] is welded on the bottom side, inside of shielding cavity pedestal [1], or screwed hole is beaten in shielding cavity pedestal [1] bottom side, and circuit board [4] screw is installed to the bottom side, inside of shielding cavity pedestal [1].
Shielding box body cover plate [5] be welded on shielding box susceptor body [1] by solder(ing) paste or by Laser seal welding on shielding box susceptor body [1].
Beneficial effect:
1,50 Ω isolator installation places are milled with a column type boss, and after installing cold drawing cooperation assembling, can solve the shielding problem of filter input, outlet chamber well;
2, reduce the requirement that cold drawing surface smoothness installed by filter, improve filter installation effectiveness;
3, improve filter and be connected standing wave with micro belt board, reduce loss;
4, isolator is welded on shielding box body by solder(ing) paste, and shielding cover board is welded or Laser seal welding by solder(ing) paste, and shielding box can ensure internal shield and air-tightness.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural blast figure mono-.
Fig. 2 is embodiments of the invention structural blast figure bis-.
Fig. 3 is structure chart after embodiments of the invention assembling.
Embodiment
The utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 1, 2, 3, be a kind of encapsulation shielding box for microwave filter, comprise shielding box susceptor body 1; The screwed hole 2 of installing filter is equipped with at the periphery of pedestal; For 50 Ω isolators 3 of signal input and output; Realize the circuit board 4 of filter function, shielding box body cover plate 5.
Shielding box susceptor body 1 can use aluminium matter or copper material, have cylinder boss in isolator 3 installation place, periphery is equipped with installs screwed hole 2, is milled with the shielding cavity of certain depth and width, for installing the circuit board 4 realizing filter function, cavity inner bottom part or cavity entirety are coated with gold or silver.Shielding box susceptor body 1 is milled with the degree of depth shirt rim identical with shielding box body cover sheet thickness in shielding box cover plate 5 installation place, shielding box cover plate 5 and shielding box susceptor body 1 are formed and embeds nature fastening, ensure excellent shielding.Pedestal 1 shape of shielding box body can be square, rectangle, hexagon, octagon, circle or other rules polygons, when shielding box susceptor body 1 selects the polygon of circle or other rules, shielding box body cover plate 5 also should be polygon that is circular or other rules, to reach good shield effectiveness.
Quantity and the pore size of installing screwed hole 2 can adjust according to the size of shielding box body, weight.
50 Ω isolators are welded on the cylinder boss of shielding box susceptor body 1 by solder(ing) paste, ensure shielding and the air-tightness of box body.
The circuit board 4 realizing filter function is welded on the bottom side, inside of shielding cavity pedestal 1, and when space allows, dozen screwed hole is joined in pedestal bottom side, also the circuit board 4 realizing filter function can be installed in cavity with screw.
Shielding box body cover plate 5 be welded on shielding box susceptor body 1 by solder(ing) paste or by Laser seal welding on shielding box susceptor body 1, ensure good shielding and air-tightness.
The present invention also can be applicable to the encapsulation of other microwave devices, especially requires higher microwave device, as monopole single throw microwave switch etc. to input, output shielding.
Claims (4)
1. a novel encapsulation shielding box for microwave filter, is characterized in that, comprising:
Shielding box susceptor body [1], isolator [3], circuit board [4], shielding box body cover plate [5];
Shielding box susceptor body [1] has cylinder boss in isolator [3] installation place, cylinder boss periphery is equipped with installs screwed hole [2], shielding box susceptor body [1] inside is milled with the shielding cavity with the degree of depth and width, circuit board [4] is arranged in described shielding cavity, and described shielding cavity inner bottom part or cavity entirety are coated with gold or silver; Shielding box susceptor body [1] is milled with the degree of depth shirt rim identical with shielding box body cover sheet thickness in shielding box cover plate [5] installation place, shielding box cover plate [5] covers in shirt rim and shielding box susceptor body [1] forms embedding nature fastening.
2. a kind of novel encapsulation shielding box for microwave filter as claimed in claim 1, is characterized in that,
Pedestal [1] shape of shielding box body is circular or regular polygon, and when shielding box susceptor body [1] selects circular or regular polygon, shielding box body cover plate [5] also corresponds to the polygon of circle or rule.
3. a kind of novel encapsulation shielding box for microwave filter as claimed in claim 1, is characterized in that,
Circuit board [4] is welded on the bottom side, inside of shielding cavity pedestal [1], or screwed hole is beaten in shielding cavity pedestal [1] bottom side, and circuit board [4] screw is installed to the bottom side, inside of shielding cavity pedestal [1].
4. a kind of novel encapsulation shielding box for microwave filter as claimed in claim 1, is characterized in that,
Shielding box body cover plate [5] be welded on shielding box susceptor body [1] by solder(ing) paste or by Laser seal welding on shielding box susceptor body [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713693.4U CN204793129U (en) | 2014-11-24 | 2014-11-24 | Novel microwave filter encapsulation shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713693.4U CN204793129U (en) | 2014-11-24 | 2014-11-24 | Novel microwave filter encapsulation shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793129U true CN204793129U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420713693.4U Expired - Fee Related CN204793129U (en) | 2014-11-24 | 2014-11-24 | Novel microwave filter encapsulation shielding case |
Country Status (1)
| Country | Link |
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| CN (1) | CN204793129U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532317A (en) * | 2016-10-26 | 2017-03-22 | 北京遥测技术研究所 | Air coaxial output structure for active antenna |
| CN107182194A (en) * | 2017-06-29 | 2017-09-19 | 安徽硕金医疗设备有限公司 | A kind of display screen of magnetic resonance compatible |
| CN108305853A (en) * | 2018-01-26 | 2018-07-20 | 中国电子科技集团公司第三十八研究所 | A kind of assembling of microwave module solid and encapsulating structure based on silico-aluminum box body |
| CN108323148A (en) * | 2018-04-16 | 2018-07-24 | 南京幕府信息技术有限公司 | A kind of packaged type shielding box |
| CN108493535A (en) * | 2018-05-21 | 2018-09-04 | 合肥本源量子计算科技有限责任公司 | A kind of filter construction |
| CN109100619A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detection system and method |
| CN109100538A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detecting tool |
| CN110678057A (en) * | 2019-10-09 | 2020-01-10 | 中国电子科技集团公司第十三研究所 | Filter surface grounding device and method |
| CN111375863A (en) * | 2020-04-10 | 2020-07-07 | 张书香 | High-frequency insulator welding fixture |
-
2014
- 2014-11-24 CN CN201420713693.4U patent/CN204793129U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532317A (en) * | 2016-10-26 | 2017-03-22 | 北京遥测技术研究所 | Air coaxial output structure for active antenna |
| CN109100619B (en) * | 2017-06-21 | 2020-06-26 | 北京振兴计量测试研究所 | Microwave insulator detection system and method |
| CN109100619A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detection system and method |
| CN109100538A (en) * | 2017-06-21 | 2018-12-28 | 北京振兴计量测试研究所 | A kind of isolator detecting tool |
| CN109100538B (en) * | 2017-06-21 | 2021-02-26 | 北京振兴计量测试研究所 | Microwave insulator detects frock |
| CN107182194A (en) * | 2017-06-29 | 2017-09-19 | 安徽硕金医疗设备有限公司 | A kind of display screen of magnetic resonance compatible |
| CN108305853A (en) * | 2018-01-26 | 2018-07-20 | 中国电子科技集团公司第三十八研究所 | A kind of assembling of microwave module solid and encapsulating structure based on silico-aluminum box body |
| CN108305853B (en) * | 2018-01-26 | 2019-10-25 | 中国电子科技集团公司第三十八研究所 | A kind of assembling of microwave module solid and encapsulating structure based on silico-aluminum box body |
| CN108323148A (en) * | 2018-04-16 | 2018-07-24 | 南京幕府信息技术有限公司 | A kind of packaged type shielding box |
| CN108493535A (en) * | 2018-05-21 | 2018-09-04 | 合肥本源量子计算科技有限责任公司 | A kind of filter construction |
| CN110678057A (en) * | 2019-10-09 | 2020-01-10 | 中国电子科技集团公司第十三研究所 | Filter surface grounding device and method |
| CN110678057B (en) * | 2019-10-09 | 2024-08-23 | 中国电子科技集团公司第十三研究所 | Device and method for grounding filter surface |
| CN111375863A (en) * | 2020-04-10 | 2020-07-07 | 张书香 | High-frequency insulator welding fixture |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20201124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |