CN109244613A - A kind of cavity body filter electromagnetic shielding system - Google Patents
A kind of cavity body filter electromagnetic shielding system Download PDFInfo
- Publication number
- CN109244613A CN109244613A CN201811365036.4A CN201811365036A CN109244613A CN 109244613 A CN109244613 A CN 109244613A CN 201811365036 A CN201811365036 A CN 201811365036A CN 109244613 A CN109244613 A CN 109244613A
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- CN
- China
- Prior art keywords
- absorbing material
- panel
- cavity body
- electromagnetic shielding
- body filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention discloses a kind of cavity body filter electromagnetic shielding system, and the cavity body filter electromagnetic shielding system includes: cavity body filter, absorbing material, system face, wherein cavity body filter and absorbing material are conductively connected.The cavity body filter is hexahedron structure, it includes fixed panel, upper cover plate, Left-Hand Panel, right panel, front panel, rear panel, wherein, fixed panel is connect with system face, upper cover plate and absorbing material are conductively connected, and Left-Hand Panel and absorbing material are conductively connected, and right panel and absorbing material are conductively connected, front panel and absorbing material are conductively connected, and rear panel and absorbing material are conductively connected.The present invention can increase substantially the filtering characteristic of cavity body filter, can be good at the strong interference for inhibiting other garbage signals to useful signal.
Description
Technical field
The present invention relates to a kind of electromangnetic spectrum field, in particular to a kind of cavity body filter electromagnetic shielding system.
Background technique
With the rapid development of electronic information technology, component is rapidly developed towards integrated, miniaturization.And filter is made
For a kind of basic device, and be a kind of typical frequency selection device, it can effectively inhibit garbage signal, prevent its from
By filter, only useful signal passes through filter.Therefore, the superiority and inferiority of performance of filter directly influences entire communication
The quality of system.It, can be just from the high band of low-frequency range to tens GHz of tens MHz since filter working frequency range is very wide
Often work, the filter type used are more and more.But as the electromagnetic environment and system compact that become increasingly complex now are wanted
It asks, then needs that performance requirement is higher, the smaller microwave filter of volume.Small size filter design superior for a performance
For, do not require nothing more than that filter housing is more frivolous, light-weight in design, while requiring to reduce useful signal in systems
Decaying, and can be good at the strong interference for inhibiting other garbage signals to useful signal.Therefore, be designed to consistency it is good,
The excellent small size cavity filtering of the electromagnetic shielding performances such as Out-of-band rejection height, more high stability is most important.
Summary of the invention
It is an object of that present invention to provide a kind of completely new cavity body filter electromagnetic shielding systems, and system solves the problem previous small
Volume chamber filter is easy to be caused inside cavity electromagnetic field unstable by free surrounding space electromagnetic leakage, cavity is caused to filter
Device filtering characteristic changes, to the problem inadequate to product working frequency points Out-of-band rejection occur.
In view of the above technical problems, the present invention proposes a kind of cavity body filter electromagnetic shielding system, which is characterized in that described
Cavity body filter electromagnetic shielding system includes: cavity body filter, absorbing material, system face, wherein cavity body filter and suction wave material
Material is conductively connected.The cavity body filter is hexahedron structure comprising fixed panel, upper cover plate, Left-Hand Panel, right side
Plate, front panel, rear panel, wherein fixed panel is connect with system face, and upper cover plate and absorbing material are conductively connected, Left-Hand Panel
It is conductively connected with absorbing material, right panel and absorbing material are conductively connected, and front panel and absorbing material are conductively connected, rear panel
It is conductively connected with absorbing material.This electromagnetic shielding system can increase substantially the filtering characteristic of cavity body filter, can be fine
The strong interference to useful signal of inhibition other garbage signals.
Detailed description of the invention
Fig. 1 is cavity body filter electromagnetic shielding system schematic diagram of the invention.
Specific embodiment
Cavity body filter electromagnetic shielding system is described in detail below in conjunction with Fig. 1.
Cavity body filter electromagnetic shielding system proposed by the present invention, comprising: cavity body filter absorbing material, conducting resinl, is
System face, screw, wherein cavity body filter and system face pass through conductive glue connection, and cavity body filter and absorbing material pass through conducting resinl
It is attached.
Cavity body filter is hexahedron structure, including fixed panel, upper cover plate, Left-Hand Panel, right panel, front panel,
Rear panel, wherein fixed panel is connected by screw to system face, and upper cover plate and absorbing material pass through conductive glue connection, left side
Panel and absorbing material pass through conduction glue connection, and right panel and absorbing material pass through conductive glue connection, front panel and suction wave material
Material passes through conductive glue connection by conductive glue connection, rear panel and absorbing material.
This electromagnetic shielding system can increase substantially the filtering characteristic of cavity body filter, can be good at inhibiting other nothings
Strong interference with signal to useful signal.
Claims (8)
1. a kind of cavity body filter electromagnetic shielding system, which is characterized in that the cavity body filter electromagnetic shielding system includes: chamber
Fluid filter, absorbing material, system face；
Wherein cavity body filter and absorbing material are conductively connected；The cavity body filter is hexahedron structure comprising stationary plane
Plate, upper cover plate, Left-Hand Panel, right panel, front panel, rear panel, wherein fixed panel is connect with system face, upper cover plate and
Absorbing material is conductively connected, and Left-Hand Panel and absorbing material are conductively connected, and right panel and absorbing material are conductively connected, front panel
It is conductively connected with absorbing material, rear panel and absorbing material are conductively connected.
2. electromagnetic shielding system according to claim 1, which is characterized in that the cavity body filter passes through with absorbing material
Conductive glue connection.
3. electromagnetic shielding system according to claim 1, which is characterized in that the fixed panel and system face pass through screw
Connection.
4. electromagnetic shielding system according to claim 1, which is characterized in that the upper cover plate and absorbing material pass through conduction
Glue connection.
5. electromagnetic shielding system according to claim 1, which is characterized in that the Left-Hand Panel is with absorbing material by leading
Electric glue connection.
6. electromagnetic shielding system according to claim 1, which is characterized in that the right panel is with absorbing material by leading
Electric glue connection.
7. electromagnetic shielding system according to claim 1, which is characterized in that the front panel and absorbing material pass through conduction
Glue connection.
8. electromagnetic shielding system according to claim 1, which is characterized in that the rear panel and absorbing material pass through conduction
Glue connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365036.4A CN109244613A (en) | 2018-11-16 | 2018-11-16 | A kind of cavity body filter electromagnetic shielding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365036.4A CN109244613A (en) | 2018-11-16 | 2018-11-16 | A kind of cavity body filter electromagnetic shielding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109244613A true CN109244613A (en) | 2019-01-18 |
Family
ID=65075518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365036.4A Pending CN109244613A (en) | 2018-11-16 | 2018-11-16 | A kind of cavity body filter electromagnetic shielding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109244613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030317A (en) * | 2019-04-25 | 2019-07-19 | 北京遥感设备研究所 | A kind of solid state frequency source frequency spectrum reliability lifting system under vibration environment condition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747110A (en) * | 2004-09-10 | 2006-03-15 | 三星Sdi株式会社 | Plasma display panel device |
| CN101752642A (en) * | 2010-02-09 | 2010-06-23 | 安徽省大富机电技术有限公司 | Cavity filter casing, cavity making method and cover plate making method |
| CN204153731U (en) * | 2014-09-24 | 2015-02-11 | 深圳市三维自动化工程有限公司 | A kind of light fixture realizing wide-band electromagnetic wave shielding |
| CN204859191U (en) * | 2015-08-06 | 2015-12-09 | 京信通信技术(广州)有限公司 | Calibrating device of smart antenna |
-
2018
- 2018-11-16 CN CN201811365036.4A patent/CN109244613A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747110A (en) * | 2004-09-10 | 2006-03-15 | 三星Sdi株式会社 | Plasma display panel device |
| CN101752642A (en) * | 2010-02-09 | 2010-06-23 | 安徽省大富机电技术有限公司 | Cavity filter casing, cavity making method and cover plate making method |
| CN204153731U (en) * | 2014-09-24 | 2015-02-11 | 深圳市三维自动化工程有限公司 | A kind of light fixture realizing wide-band electromagnetic wave shielding |
| CN204859191U (en) * | 2015-08-06 | 2015-12-09 | 京信通信技术(广州)有限公司 | Calibrating device of smart antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030317A (en) * | 2019-04-25 | 2019-07-19 | 北京遥感设备研究所 | A kind of solid state frequency source frequency spectrum reliability lifting system under vibration environment condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |
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| WD01 | Invention patent application deemed withdrawn after publication |