CN201816261U - Wave-absorbing film with multilayer structure for Ku waveband radar - Google Patents
Wave-absorbing film with multilayer structure for Ku waveband radar Download PDFInfo
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- CN201816261U CN201816261U CN2010201609495U CN201020160949U CN201816261U CN 201816261 U CN201816261 U CN 201816261U CN 2010201609495 U CN2010201609495 U CN 2010201609495U CN 201020160949 U CN201020160949 U CN 201020160949U CN 201816261 U CN201816261 U CN 201816261U
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- absorbing material
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- 239000002985 plastic film Substances 0.000 claims abstract description 12
- 229920006255 plastic film Polymers 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 52
- 239000011358 absorbing material Substances 0.000 claims description 40
- 239000010409 thin film Substances 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000003822 epoxy resin Substances 0.000 description 10
- 229920000647 polyepoxide Polymers 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000007822 coupling agent Substances 0.000 description 9
- 239000003085 diluting agent Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000002745 absorbent Effects 0.000 description 7
- 239000002250 absorbent Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000009261 D 400 Substances 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
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Abstract
The utility model relates to a wave-absorbing film with a multilayer structure for Ku waveband radar, which mainly comprises six layers of wave-absorbing layers and five plastic films, wherein one plastic film is arranged between every two wave-absorbing layers. The utility model combines impedance gradual changing and electromagnetic wave trapping principles, has high wave-absorbing performance, small thickness, low surface density, light weight, good mechanical property within the Ku waveband, and is suitable to be used for resisting Ku waveband radar.
Description
Technical field
The utility model relates to a kind of radar absorbing, is a kind of radar wave absorbing thin film that is used for the multi-layer film structure of absorption of K u wave band specifically.
Background technology
The Ku wave band is mainly used in satellite communication, particularly the use of broadcasting satellite TV.Generally in the ku wave band, concerning the radar self performance, key issue is how to eliminate noise jamming, raising detection accuracy to the working frequency range of existing satellite-detection radar and airborne radar, and the most direct, effective method is to use absorbing material to reduce noise jamming; And militarily, resisting this class radar just needs to reduce its RCS (RCS), and using absorbing material is to reduce the simple and effective method of RCS.Use at present the frequency band of ku wave band absorbing material narrow, the absorbing material absorbing property is very low, and the reflection of electromagnetic wave rate is greater than-8dB, and absorbing material thickness is big, the surface density height, and quality is big, can not satisfy the civil and military requirement.
Summary of the invention
In order to solve deficiencies such as absorbing material absorption of K u wave band electromagnetic wave wave-absorbing effect is undesirable in the prior art, surface density is high, weight is big, the purpose of this utility model provides that a kind of surface density is low, light weight, Ku wave band electromagnetic wave absorptivity is reached multi-layer film structure radar wave absorbing thin film more than 95%.
The technical solution adopted in the utility model is: a kind of sandwich construction Ku band radar wave absorbing thin film, its technical characterstic are mainly to comprise six layers of absorbing material layer and five layers of plastic sheeting, and the every two-layer absorbing material interlayer of six layers of absorbing material layer is equipped with plastic sheeting.
Further, described plastic film thickness is 0.13mm, and described absorbing material layer thickness is 0.09mm.
When electromagnetic wave incided the absorbing material layer, it was inner and be not reflected at first will to allow it enter the absorbing material layer to greatest extent.When electromagnetic wave vertical incidence absorbing material layer
In the formula
------electromagnetic wave is at the amplitude reflectance of coating surface for ρ
η--the relative person's character impedance of----coating
η
0--the relative person's character impedance of----free space
As making ρ=0
η must be arranged
0=η
And
Wherein: ε
0, μ
0Relative permeability, the relative dielectric constant of-----free space
Relative permeability, the relative dielectric constant of ε, μ-----coating
As seen, the direct projection electromagnetic wave to enter the absorbing material layer fully must mate fully in impedance, and the relative permeability of absorbing material layer and relative dielectric constant will equate in fact also there is not the coating of this electromagnetic parameter, can only allow its mate as much as possible.
The beneficial effects of the utility model are:
1, by the principle of impedance matching, wave absorbing thin film each coating from top to bottom is 80% high frequency, 75% ferrite, 60% low frequency, 80% low frequency, and the impedance of each layer reduces gradually, thereby reaches impedance matching effect; The plastic sheeting of folder last layer highly-resistant material between the two-layer absorbing material layer when electromagnetic wave enters the absorbing material interlayer, will come back reflective and loses between two absorbing material layers, be similar to the total reflection in the optics, thereby form the electromagnetic wave trap; Integrated use impedance transition mechanism and electromagnetic wave trap principle, the good absorbing effect of absorbing material layer, Ku wave band electromagnetic wave absorptivity reaches more than 95%, and the reflection of electromagnetic wave rate reaches-20db;
2, every plastic film thickness is 0.13mm, and every layer of absorbing material layer thickness is 0.09mm, and the wave absorbing thin film integral thickness is less than 2mm, and wave absorbing thin film thickness is little, and surface density is low, light weight, and mechanical property is good, can be widely used in satellite and aircraft utilization.
The utility model adopts impedance, and six layers of absorbing material layer and five plastic sheeting space pressings of gradual change form wave absorbing thin film successively, comprehensive impedance gradual change and electromagnetic wave trap principle, absorbing property height in the Ku wavelength band, wave absorbing thin film thickness is little, surface density is low, light weight, mechanical property are good, is fit to satellite and aircraft antagonism Ku band radar and uses.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the absorbing property figure of the utility model wave absorbing thin film.
Among the figure: absorbing material layer 1,2,3,4,5,6, plastic sheeting 7.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Sandwich construction Ku band radar wave absorbing thin film shown in Figure 1, mainly comprise 1,2,3,4,5,6 and five layers of plastic sheeting 7 of six layers of absorbing material layer, every two-layer absorbing material interlayer is equipped with plastic sheeting 7, and the composition of ground floor absorbing material layer 1 is: 1.50 parts of coupling agents, 50 parts of diluents, 150 parts on ferrite, 53.67 parts of 60% epoxy resin; The composition of second layer absorbing material layer 2 is: 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 39.83 parts of 60% epoxy resin, 12.93 parts in curing agent; The composition of the 3rd layer of absorbing material layer 3 is: 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 109.02 parts of 60% epoxy resin, 33.10 parts in curing agent; Fourth, fifth, the composition of six layers of absorbing material layer 4,5,6 is: 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 39.83 parts of 60% epoxy resin, 12.93 parts in curing agent; Every plastic film thickness is 0.13mm, and every layer of absorbing material layer thickness is 0.09mm.
The step of making the utility model wave absorbing thin film is:
1. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g ferrite, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 53.67g in mixture stirs evenly, add curing agent 16.29g again, the coating that mixes was sheared 15 minutes with high-speed shearing machine, leave standstill the cooling back and brush on processed plastic film with hairbrush, the baking oven of putting into 30 ℃ rose to 60 ℃ with oven temperature and solidifies the plastic sheeting of making band absorbing material layer 1 in 5 hours after 1 hour;
2. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g carbonyl iron absorbent, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 39.83g in mixture stirs evenly, add curing agent 12.93g again, the coating that mixes was sheared 15 minutes with high-speed shearing machine, leave standstill the cooling back and brush on processed plastic film with hairbrush, the baking oven of putting into 30 ℃ rose to 60 ℃ with oven temperature and solidifies the plastic sheeting of making band absorbing material layer 2 in 5 hours after 1 hour;
3. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g carbonyl iron absorbent, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 109.02g in mixture stirs evenly, add curing agent 33.10g again, the coating that mixes was sheared 15 minutes with high-speed shearing machine, leave standstill the cooling back and brush on processed plastic film with hairbrush, the baking oven of putting into 30 ℃ rose to 60 ℃ with oven temperature and solidifies the plastic sheeting of making band absorbing material layer 3 in 5 hours after 1 hour;
4. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g carbonyl iron absorbent, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 39.83g in mixture stirs evenly, add curing agent 12.93g again, the coating that mixes was sheared 15 minutes with high-speed shearing machine, leave standstill the cooling back and brush on processed plastic film with hairbrush, the baking oven of putting into 30 ℃ rose to 60 ℃ with oven temperature and solidifies the plastic sheeting of making band absorbing material layer 4 in 5 hours after 1 hour;
5. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g carbonyl iron absorbent, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 39.83g in mixture stirs evenly, add curing agent 12.93g again, the coating that mixes was sheared 15 minutes with high-speed shearing machine, leave standstill after cooling off with the positive and negative two sides of hairbrush brush in processed plastic film, the baking oven of putting into 30 ℃ rose to 60 ℃ with oven temperature and solidifies the plastic sheeting of making band absorbing material layer 5,6 in 5 hours after 1 hour;
6. with 5 plastic sheeting pressings successively from top to bottom of being with the absorbing material layers among the above-mentioned steps 1-5, the epoxy resin E-44 of employing 60% mixes the back as adhesive with curing agent D-400 by ratio of quality and the number of copies at 2: 1, use adhesive that 5 plastic sheetings of step pressing are pasted into wave absorbing thin film by order from top to bottom, it is 0.13mm that this wave absorbing thin film adopts every plastic film thickness, the thickness 0.09mm of every layer of absorbing material layer, the wave absorbing thin film integral thickness is less than 1.2mm, thickness is little, density is low, light weight, the mechanical property height.
The absorbing property figure of the utility model wave absorbing thin film shown in Figure 2, in the ku wave band, wave absorbing thin film reflection of electromagnetic wave rate of the present utility model reaches-20db, and electro-magnetic wave absorption is effective.
Claims (2)
1. sandwich construction Ku band radar wave absorbing thin film, it is characterized in that: mainly comprise six layers of absorbing material layer and five plastic sheetings, the every two-layer absorbing material interlayer of six layers of absorbing material layer is equipped with plastic sheeting.
2. sandwich construction Ku band radar wave absorbing thin film according to claim 1, it is characterized in that: described plastic film thickness is 0.13mm, described absorbing material layer thickness is 0.09mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201609495U CN201816261U (en) | 2010-04-16 | 2010-04-16 | Wave-absorbing film with multilayer structure for Ku waveband radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201609495U CN201816261U (en) | 2010-04-16 | 2010-04-16 | Wave-absorbing film with multilayer structure for Ku waveband radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201816261U true CN201816261U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201609495U Expired - Fee Related CN201816261U (en) | 2010-04-16 | 2010-04-16 | Wave-absorbing film with multilayer structure for Ku waveband radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277803A (en) * | 2015-12-03 | 2016-01-27 | 哈尔滨幻石科技发展有限公司 | Wall structure for detecting product electromagnetic performance |
| CN107787173A (en) * | 2016-08-29 | 2018-03-09 | 深圳光启尖端技术有限责任公司 | Wave absorbing patch and its manufacture method |
-
2010
- 2010-04-16 CN CN2010201609495U patent/CN201816261U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277803A (en) * | 2015-12-03 | 2016-01-27 | 哈尔滨幻石科技发展有限公司 | Wall structure for detecting product electromagnetic performance |
| CN105277803B (en) * | 2015-12-03 | 2018-06-26 | 江山海维科技有限公司 | For the wall construction of product electromagnetic performance detection |
| CN107787173A (en) * | 2016-08-29 | 2018-03-09 | 深圳光启尖端技术有限责任公司 | Wave absorbing patch and its manufacture method |
| CN107787173B (en) * | 2016-08-29 | 2020-03-24 | 深圳光启尖端技术有限责任公司 | Wave-absorbing patch and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU WANHUA TUOGU NEW MATERIAL TECHNOLOGY CO., Free format text: FORMER OWNER: TAIZHOU TUOGU SUPER-FINE MATERIALS CO., LTD. Effective date: 20120209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120209 Address after: 225411 No. 2 west station, Huangqiao Industrial Park, Jiangsu, Taixing Patentee after: Taizhou Tycho Ultra Fine Powder Material Co., Ltd. Address before: 225411 No. 6 Shengli East Road, Huangqiao Industrial Park, Jiangsu, Taixing Patentee before: Taizhou Tuogu Super-fine Materials Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20140416 |