CN202335196U - Two-layer or multi-layer composite absorbing layer - Google Patents
Two-layer or multi-layer composite absorbing layer Download PDFInfo
- Publication number
- CN202335196U CN202335196U CN2011203267849U CN201120326784U CN202335196U CN 202335196 U CN202335196 U CN 202335196U CN 2011203267849 U CN2011203267849 U CN 2011203267849U CN 201120326784 U CN201120326784 U CN 201120326784U CN 202335196 U CN202335196 U CN 202335196U
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- ferrite
- utility
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- alloy powder
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- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 16
- 230000002745 absorbent Effects 0.000 claims abstract description 11
- 239000002250 absorbent Substances 0.000 claims abstract description 11
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011358 absorbing material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 208000002173 dizziness Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
本实用新型公开了一种双、多复合吸收层，包括沿电磁波入射方向由内而外，依次设置的铁氧体匹配层、铁氧体-合金粉阻抗变换层和大介电合金粉层。本实用新型所采用的复合层结构，是由含不同电磁参数的吸收剂的各层叠加而成的。通过采用两层或两层以上复合的结构形式达到阻抗匹配、展宽频带和提高吸收峰值的效果，从而改善单一一种吸波材料在雷达波段吸波性能所受的局限性。
The utility model discloses a double-multiple composite absorbing layer, which comprises a ferrite matching layer, a ferrite-alloy powder impedance conversion layer and a large dielectric alloy powder layer arranged in sequence along the incident direction of electromagnetic waves from inside to outside. The composite layer structure adopted in the utility model is formed by stacking layers containing absorbents with different electromagnetic parameters. By using two or more layers of composite structure to achieve the effects of impedance matching, broadening the frequency band and increasing the absorption peak, so as to improve the limitations of a single absorbing material in the radar band absorbing performance.
Description
Technical field
The utility model relates to a kind of t, particularly a kind of two, many composite absorbent layer.
Background technology
Because the large power, electrically magnetic machine is the generally installation on the naval vessel in modern times, this makes the electromagnetic environment on the naval vessel become very complicated.The operation of the powerful device equipment around it that makes receives powerful electromagnetic radiation, and this has not only reduced the stability of other equipment, also can to around operating personnel cause very dangerous consequence-have a dizzy spell, be prone to have an accident.And the various materials of common shielding mechanism are difficult to fundamentally eliminate these electromagnetic radiation, and the energy of these radiation of transfer that can only be passive is so common mechanism type shielding material can not loss low-frequency range electromagnetic wave and the effective secondary clutter of eliminating.
The utility model content
The utility model technical problem to be solved provides a kind of two, many composite absorbent layer.
For solving the problems of the technologies described above; The utility model is realized as follows: a kind of two, many composite absorbent layer; Comprise from inside to outside the ferrite matching layer that sets gradually, ferrite-alloyed powder impedance conversion layer and big dielectric alloy powder layer along the electromagnetic wave incident direction.
The good effect of the utility model is: the lamination layer structure that the utility model adopted is that each range upon range of the adding by the absorbent that contains the different electric magnetic parameter forms.Through adopt two-layer or two-layer more than compound version reach the effect of impedance matching, widening frequency band and raising absorption peak, thereby improve single a kind of absorbing material in the suffered limitation of radar absorbing property.
Description of drawings
Fig. 1 is that embodiment provided was two, the structural representation of many composite absorbent layer for of the utility model;
Wherein, 1 ferrite matching layer, 2 ferrites-alloyed powder impedance conversion layer 3 big dielectric alloy powder layer
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
As shown in Figure 1; One of the utility model two, many composite absorbent layer that embodiment provided; Adopt the composite laminated structure, comprise from outside to inside, the ferrite matching layer that sets gradually, ferrite-alloyed powder impedance conversion layer and big dielectric alloy powder layer along the electromagnetic wave incident direction.
One, the ferrite matching layer 1: comprise the hexagonal crystal formation ferrite of 80% mass fraction and the magnesium phenolic resins of 20% mass fraction, the thickness of ferrite matching layer 1 is 1.6mm.
Two, ferrite-alloyed powder impedance conversion layer 2: comprise the magnesium phenolic resins of hexagonal crystal formation ferrite, 20% iron-nickel alloy micro mist and 40% mass fraction of 40% mass fraction, the thickness of ferrite-alloyed powder impedance conversion layer 2 is 1.0mm.
Three, big dielectric alloy powder layer 3: comprise the iron-nickel alloy micro mist of 70% mass fraction and the magnesium phenolic resins of 30% mass fraction, big dielectric alloy powder layer 3 thickness are 0.6mm.
The lamination layer structure that the utility model adopted is that each range upon range of the adding by the absorbent that contains the different electric magnetic parameter forms.Through adopt two-layer or two-layer more than compound version reach the effect of impedance matching, widening frequency band and raising absorption peak, suppressed the secondary clutter effectively, thereby improved single a kind of absorbing material in the suffered limitation of radar absorbing property.
Claims (2)
1. two, many composite absorbent layer is characterized in that, comprise along the electromagnetic wave incident direction from inside to outside, the ferrite matching layer, ferrite-alloyed powder impedance conversion layer and the big dielectric alloy powder layer that set gradually.
2. two, many composite absorbent layer according to claim 1 is characterized in that said ferrite matching layer thickness is 1.6mm; Said ferrite-alloyed powder impedance conversion layer thickness is 1.0mm; Big dielectric alloy powder layer thickness is 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203267849U CN202335196U (en) | 2011-09-02 | 2011-09-02 | Two-layer or multi-layer composite absorbing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203267849U CN202335196U (en) | 2011-09-02 | 2011-09-02 | Two-layer or multi-layer composite absorbing layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202335196U true CN202335196U (en) | 2012-07-11 |
Family
ID=46447158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203267849U Expired - Fee Related CN202335196U (en) | 2011-09-02 | 2011-09-02 | Two-layer or multi-layer composite absorbing layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202335196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106659100A (en) * | 2016-11-10 | 2017-05-10 | 无锡市明盛强力风机有限公司 | Manganese dioxide modified wave-absorbing material |
| CN106852104A (en) * | 2017-03-24 | 2017-06-13 | 上海源紊新能源科技有限公司 | A kind of electromagnetic shielding car for homework of supplying power |
-
2011
- 2011-09-02 CN CN2011203267849U patent/CN202335196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106659100A (en) * | 2016-11-10 | 2017-05-10 | 无锡市明盛强力风机有限公司 | Manganese dioxide modified wave-absorbing material |
| CN106852104A (en) * | 2017-03-24 | 2017-06-13 | 上海源紊新能源科技有限公司 | A kind of electromagnetic shielding car for homework of supplying power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20130902 |