CN204045932U - Thunder-lightning flow guide bar and metamaterial antenna cover - Google Patents
Thunder-lightning flow guide bar and metamaterial antenna cover Download PDFInfo
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- CN204045932U CN204045932U CN201420478269.6U CN201420478269U CN204045932U CN 204045932 U CN204045932 U CN 204045932U CN 201420478269 U CN201420478269 U CN 201420478269U CN 204045932 U CN204045932 U CN 204045932U
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- flow guide
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Abstract
The utility model discloses a kind of thunder-lightning flow guide bar and metamaterial antenna cover, wherein, described flow guide bar comprises: insulation base band; Flexible resin layer, is arranged in described insulation base band; Multiple sheet metal, is fixed in described insulation base band, arranges along described insulation base band length direction interval; Described sheet metal comprises the end extended along described insulation baseband width direction, and described end is embedded in described flexible resin layer or below described flexible resin layer.Thus, the constant intensity of sheet metal can be strengthened, not affect the guide performance of thunder-lightning flow guide bar simultaneously.
Description
Technical field
The utility model relates to lightning protection field, is specifically related to a kind of thunder-lightning flow guide bar and metamaterial antenna cover.
Background technology
Radome, as the parts of protection antenna, needs to have certain mechanical strength on the one hand, also needs on the other hand to have wave transparent characteristic in good band, to ensure that the electromagnetic wave in frequency range can high efficiency penetrate.Meta Materials is formed by substrate arranging the metal micro structure with reservation shape that metal wire sections forms, it can utilize the shape and size of metal micro structure to change dielectric constant and/or the magnetic permeability of Meta Materials, make it have the electromagnetic property of expection, control electromagnetic wave propagation.Meta Materials is a kind of good electromagnetic wave transparent material, is applied to radome and can significantly improves radome to electromagnetic wave penetrate capability in band.
Usually be arranged on aircraft due to radome or be fixedly installed on higher position, it needs to arrange thunder-lightning flow guide bar to prevent radome to be punctured by thunder and lightning and then to damage antenna and supporting electronic equipment.Thunder-lightning flow guide bar by the thunder and lightning induced current water conservancy diversion on radome surface to corresponding earth terminal or element, can puncture radome to avoid thunder and lightning induced current.
For metamaterial antenna cover, owing to containing metal micro structure in Meta Materials, there is coupling between thunder-lightning flow guide bar and radome metal micro structure, certain negative effect can be formed to the thunder-lightning performance of thunder-lightning flow guide bar.Meanwhile, thunder and lightning induced current can make thunder-lightning flow guide bar generate heat, and it is easily come off.
Utility model content
In view of this, the utility model provides a kind of thunder-lightning flow guide bar and metamaterial antenna cover, to overcome in metamaterial antenna cover metal micro structure to the negative effect of thunder-lightning flow guide bar.
First aspect, provide a kind of thunder-lightning flow guide bar, described flow guide bar comprises:
Insulation base band;
Flexible resin layer, is arranged in described insulation base band;
Multiple sheet metal, is fixed in described insulation base band, arranges along described insulation base band length direction interval;
Described sheet metal comprises the end extended along described insulation baseband width direction, and described end is embedded in described flexible resin layer or below described flexible resin layer.
Preferably, described sheet metal is cross sheet metal, and described cross sheet metal comprises the end extended along described insulation base band length direction, and the described width along the end that described insulation base band length direction extends narrows gradually along bearing of trend.
Preferably, described sheet metal embeds and is arranged on described flexible resin layer, outside the part of described sheet metal one side surface except the end extended along described insulation baseband width direction is exposed to.
Preferably, the spacing between described sheet metal is less than or equal to the thickness of described insulation base band.
Preferably, described flexible resin layer is made up of the flexible resin containing conductive powder.
Preferably, described conductive powder is metal dust or carbon fiber powder.
Preferably, described insulation base band is polyester film.
Second aspect, provides a kind of metamaterial antenna cover, and comprise the cover body that Meta Materials is formed, the surface of described cover body is fixedly installed at least one thunder-lightning flow guide bar as above.
Preferably, described Meta Materials has the metal micro structure of array format, and the length of described thunder-lightning flow guide bar is greater than and is arranged in the length that cover body below it has the region of metal micro structure.
Preferably, described cover body surface is provided with groove, and described thunder-lightning flow guide bar is arranged in described groove.
By arranging the end extended along described insulation baseband width direction on sheet metal, this end being embedded in flexible resin layer, enhancing the constant intensity of sheet metal, do not affect the guide performance of thunder-lightning flow guide bar simultaneously.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects, features and advantages of the present utility model will be more clear, in the accompanying drawings:
Fig. 1 is the schematic diagram of the thunder-lightning flow guide bar of the utility model embodiment;
Fig. 2 is the vertical view of the thunder-lightning flow guide bar of the utility model embodiment;
Fig. 3 a is the sectional view of thunder-lightning flow guide bar along A-A ' direction of the utility model embodiment;
Fig. 3 b is the sectional view of thunder-lightning flow guide bar along B-B ' direction of the utility model embodiment;
Fig. 3 c is the sectional view of thunder-lightning flow guide bar along C-C ' direction of the utility model embodiment;
Fig. 4 is the schematic diagram of the metamaterial antenna cover of the utility model embodiment;
Fig. 5 is the schematic diagram of the Meta Materials that the metamaterial antenna cover of the utility model embodiment uses;
Fig. 6 is the schematic diagram of the thunder-lightning flow guide bar of another embodiment of the utility model;
Fig. 7 is the vertical view of the thunder-lightning flow guide bar of the utility model embodiment;
Fig. 8 a is the sectional view of thunder-lightning flow guide bar along A-A ' direction of another embodiment of the utility model;
Fig. 8 b is the sectional view of thunder-lightning flow guide bar along B-B ' direction of another embodiment of the utility model;
Fig. 8 c is the sectional view of thunder-lightning flow guide bar along C-C ' direction of another embodiment of the utility model;
Fig. 9 is the sectional view of the thunder-lightning flow guide bar in another embodiment of the utility model Alternate embodiments along A-A ' direction.
Embodiment
In more detail the utility model is described hereinafter with reference to accompanying drawing.In various figures, identical element adopts identical Reference numeral to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.In addition, may some known part not shown.
Be to be understood that, when the structure of outlines device, when one deck, region are called be positioned at another layer, another region " above " or " top " time, can refer to be located immediately at another layer, another over, or itself and another layer, also comprise other layer or region between another region.Further, if overturn by device, this one deck, a region will be positioned at another layer, another region " below " or " below ".
If in order to describe the situation being located immediately at another layer, another over, will adopt herein " directly exist ... above " or " ... above and adjoin with it " form of presentation.
In description of the present utility model, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
Fig. 1 is the schematic diagram of the thunder-lightning flow guide bar of the utility model embodiment.As shown in Figure 1, thunder-lightning flow guide bar 10 comprises insulation base band 11, multiple sheet metal 12 and flexible resin layer 13.
Wherein, insulation base band 11 is arranged at the bottom of thunder-lightning flow guide bar 10, uses as substrate, and the flexible resin layer 13 of sheet metal 12 and breakdown conduction is under predetermined circumstances insulated with radome.Insulation base band 11 can select the dielectric bar be made up of the material with good insulating properties, toughness and intensity, and it can elect polyester film as, also can select other isolation material.
Width and the thickness of insulation base band 11 can adjust as required.Wherein, the width of insulation base band 11 can be set to be more than or equal to 2mm and be less than or equal to 20mm, and be preferably 10mm, width is crossed conference and caused flow guide bar too heavy, is unfavorable for the maintaining of wave transparent and flow guide bar simultaneously; The too small meeting of width has influence on the fixing firmness of thunder-lightning flow guide bar, shortens its useful life.
In the puncture voltage of the insulation base band 11 of thunder-lightning flow guide bar with in metamaterial antenna cover, the puncture voltage of dielectric is identical, the thickness of insulation base band 11 should be more than or equal to the spacing between sheet metal 13, to prevent insulation base band 11 breakdown before sheet metal 13 conducting.If the insulation property of insulation base band 11 are obviously better than the dielectric in Meta Materials, so this requirement can suitably be relaxed.Meanwhile, base thickness can not be excessive, otherwise can have influence on aerodynamic configuration and the RCS (Radar Cross-Section (RCS)) of radome.In the present embodiment, the thickness of insulation base band 11 can be set to be more than or equal to 0.1mm and be less than or equal to 1mm, and its thickness is preferably 0.1mm.
Sheet metal 12 is fixed in insulation base band 11, arranges along insulation base band length direction interval.In the present embodiment, sheet metal 12 is all distributed in insulation base band 11 spaced reciprocally according to predetermined spacing.
Sheet metal 12 can be integrally formed by punching press or other technique, and each sheet metal 12 has the end 12a extended at insulation base band 11 Width.As depicted in figs. 1 and 2, sheet metal 12 is cross, and it has the Part I extended along base band 11 Width that insulate and the Part II had along the extension of insulation base band 11 length direction, and the end of Part I is end 12a.
Preferably, the end 12b of the Part II of sheet metal 12 has the width narrowed gradually along bearing of trend, thus forms wedge angle in its end.The end 12b of the Part II of sheet metal 12 is relative with the end 12b that the Part II of adjacent sheet metal 12 is adjacent side, and also, each sheet metal 12 is mutually relative along the wedge angle of insulation base band length direction upper end.Like this, in thunderbolt environment, due to the existence of highfield, the charge inducing on sheet metal can be assembled to the wedge angle of end, strengthens the electric field strength between metal segments, thus, is conducive to the puncture voltage reducing lightning components.Meanwhile, when being with angular end 13b easily to puncture can to reduce manufacture, for the requirement of the spacing between sheet metal 13, even if larger spacing also can have satisfactory puncture voltage.
Fig. 3 a-3c be the thunder-lightning flow guide bar of the utility model embodiment along A-A ' direction, the sectional view in B-B ' direction and C-C ' direction.Flexible resin layer 13 is arranged in insulation base band 11, as shown in Fig. 1 and Fig. 3 a, 3b, in the present embodiment, the both sides of flexible resin layer 13 on insulation base band 11 Width have the first larger thickness, and the zone line on insulation base band 11 Width has the second less thickness.Two end 13a of the sheet metal 12 with uniform thickness are made to be covered by the thicker insulating resin layer of both sides respectively thus, less and be not capped, outside being exposed at the thickness of zone line then due to insulating resin layer 13 of one side surface of the other parts of sheet metal 12.That is, sheet metal 12 is partially submerged into and is arranged in flexible resin layer 13, its insert depth between the first thickness and the second thickness, thus, outside the part of sheet metal 12 1 side surface except the 12a of end is exposed to.End 12a is positioned at the region that flexible resin layer 13 has the first larger thickness, and it is embedded in flexible resin layer 13.
As shown in figs 3 a-3 c, end 13a is embedded in flexible resin layer 12.Meanwhile, the other parts of sheet metal 13 embed and are arranged in flexible resin layer 12, and thus, the gap between sheet metal 13 is filled by flexible resin layer 12.
In thunder and lightning environment; electric field strength between sheet metal 12 strengthens; when this electric-field enhancing is to when exceeding predetermined threshold; the resin bed between sheet metal 12 can be punctured; thunder-lightning flow guide bar 10 upper air is ionized, forms plasma conducts electricity passage, guide thunder and lightning induced current to flow through; thus protection radome is not breakdown, and then protect antenna and supporting electronic equipment.
If sheet metal 12 is fixedly installed, and its surface is contacted with air, when thunder and lightning induced current flows through sheet metal 13, due to himself resistance, sheet metal 12 can generate heat, and this easily causes sheet metal 12 to come off or loosens.
In the present embodiment, because the end 12a of sheet metal 12 is by flexible resin layer 13 pile things on, therefore, it has stronger stable degree, makes sheet metal 12 not easily come off because of heating or loosen.
In the present embodiment, sheet metal 12 can use arbitrary solid metallic or alloy, such as copper, stainless steel, aluminium etc.The thickness of sheet metal 12 can adjust according to actual conditions, and a preferred span is 0.1 to 0.3 millimeter.The size of sheet metal 12 can be selected at about 3mm, specifically can adjust according to the wave transparent frequency band of radome.
Preferably, in the present embodiment, flexible resin layer 13 adopts conductive flexible resin, also, with the flexible resin of conductive powder.Conductive powder contributes to the puncture voltage reducing flow guide bar further.The reduction of puncture voltage makes can suitably relax for the clearance requirement between sheet metal 12 during fabrication, thus reduces the requirement for manufacturing process, reduces costs.In flexible resin, the content of conductive powder can regulate according to the spacing between sheet metal, and spacing greatly then makes conductive powder content high, apart from little, makes conductive powder content low.The powder that conductive powder can select the various electric conducting material such as metal dust or carbon fiber powder to make.For metal dust, particle diameter generally can be selected at 10 micron dimension aluminium powders.
Fig. 4 is the schematic diagram of the metamaterial antenna cover of the utility model embodiment.As shown in Figure 4, radome comprises the cover body 40 be made up of Meta Materials, and cover body 40 is installed with at least one thunder-lightning flow guide bar 10, and the quantity of thunder-lightning flow guide bar 10 is under the prerequisite ensureing lightning protection effect, more few better, is preferably 6 to 8.Thunder-lightning flow guide bar 10 can be arranged in many ways on cover body 40, preferably extends arrangement by cover body 40 top to covers edge.Thunder-lightning flow guide bar 10 can be fixed on the surface of cover body 40 by adhesive, as a rule, for maintaining static or be arranged on the lower carry-on radome of movement velocity, acrylic adhesive can be selected to fix thunder-lightning flow guide bar 10, and for the carry-on radome of movement velocity higher (such as speed is greater than mach one), the EC-2216 epoxy resin that 3M company can be selected to produce is as adhesive.
In order to reduce the impact of thunder-lightning flow guide bar on radome aerodynamic configuration and RCS characteristic further, groove can be set on cover body 40, thunder-lightning flow guide bar 10 is fixed therein.
Meta Materials is a kind of artificial composite material electromagnetic wave to special electromagnetic response be made up of in base material according to ad hoc fashion periodic arrangement predetermined metal micro structure.At present, Meta Materials is generally formed by stacking along the direction perpendicular to sheet surfaces by multiple metamaterial sheet, and each metamaterial sheet comprises the base material of the metal micro structure with certain topological structure and the metal micro structure attachment be made up of wire.In the present embodiment, Meta Materials 50 can comprise the metamaterial sheet 51 that multiple edge is formed by stacking perpendicular to the direction of sheet surfaces, and each metamaterial sheet comprises base material 51a and is attached to the multiple metal micro structure 51b on base material.Generally, each metal micro structure 51b and accompanying base material 51a thereof part is defined as a metamaterial unit 52, and the size of each metamaterial unit 52 is between 1/10 to ten/5th of incident electromagnetic wave wavelength.So, Meta Materials 50 is just similar to the crystal with lattice structure.
Base material 51a can be any one material, as semi-conducting material conventional at present, such as silicon, germanium, selenium simple substance, or the compounds such as GaAs, gallium phosphide, indium phosphide, cadmium sulfide, cadmium selenide, zinc telluridse, zinc sulphide, vulcanized lead, lead selenide, carborundum, silicon nitride, and two or more the mixture any in above-mentioned material.Metal micro structure 51b is generally made up of wire, and it is attached on described base material 51a by certain processing technology, such as, etch, electroplate, bore quarter, photoetching, electronics are carved, ion quarter etc.
In the present embodiment, metal micro structure 51b is cross.Should be understood that metal micro structure 51b also can be formed as other shapes preset such as I-shaped grade.
Meanwhile, owing to containing metal micro structure in the Meta Materials that metamaterial antenna cover 40 uses, it can affect greatly for Electric Field Distribution, and it can form stronger electric field usually around the metal micro structure of thunder-lightning flow guide bar length direction end.Based on this feature, the length of thunder-lightning flow guide bar 10 can be made to be greater than length that the Meta Materials be arranged in below it has the bearing of trend along thunder-lightning flow guide bar 10 in the region of metal micro structure, thus can avoid occurring stronger electric field in metal micro structure.
Emulation shows, the thunder-lightning flow guide bar of the present embodiment is when covering has the Meta Materials of cross metal micro structure as above, between thunder-lightning flow guide bar adjacent metal sheet, the field intensity in gap can reach 600kV/m, this is much higher than the field intensity of metal micro structure in Meta Materials, and the flexible resin layer being enough to puncture in air or gap forms conductive channel.And, between the sheet metal at usual thunder-lightning flow guide bar two ends and adjacent metal sheet, electric field is maximum, therefore, first its gap can be punctured, subsequently, induced current will puncture to centre along thunder-lightning flow guide bar successively from two ends, finally make whole flow guide bar upper air layer form plasma channel.
This end, by arranging the end extended along described insulation baseband width direction on sheet metal, is embedded in flexible resin layer, enhances the constant intensity of sheet metal by the present embodiment, does not affect the guide performance of thunder-lightning flow guide bar simultaneously.
Fig. 6 is the schematic diagram of the thunder-lightning flow guide bar of another embodiment of the utility model.Fig. 7 is the vertical view of this thunder-lightning flow guide bar, Fig. 8 a-8c be its respectively along A-A ' direction, the sectional view in B-B ' direction and C-C ' direction.As shown in Fig. 6 and Fig. 8 a-8c, thunder-lightning flow guide bar 60 comprises insulation base band more than 61 sheet metal 62 and flexible resin layer 63.
Wherein, insulation base band 61 is arranged at the bottom of thunder-lightning flow guide bar 60, uses as substrate.Insulation base band 61 can select the dielectric bar be made up of the material with good insulating properties, toughness and intensity, and it can elect polyester film as, also can select other material.
Width and the thickness of insulation base band 61 can adjust as required.Wherein, the width of insulation base band 61 can be set to be more than or equal to 2mm and be less than or equal to 20mm, and be preferably 10mm, width is crossed conference and caused flow guide bar too heavy, is unfavorable for the maintaining of wave transparent and flow guide bar simultaneously; The too small meeting of width has influence on the adhesive strength of thunder-lightning flow guide bar 60, shortens its useful life.
In the puncture voltage of the insulation base band 61 of thunder-lightning flow guide bar with in metamaterial antenna cover, the puncture voltage of dielectric is identical, the thickness of insulation base band 61 should be more than or equal to spacing between sheet metal 62, with prevent insulation base band 61 gap between sheet metal 62 breakdown before breakdown.If the insulation property of insulation base band 61 are obviously better than the dielectric in Meta Materials, so this requirement can suitably be relaxed.Meanwhile, base thickness can not be excessive, otherwise can have influence on aerodynamic configuration and RCS (Radar Cross-Section, the RCS) characteristic of radome.In the present embodiment, the thickness of insulation base band 61 can be set to be more than or equal to 0.1mm and be less than or equal to 1mm, and its thickness is preferably 0.1mm.
Sheet metal 62 is fixed in insulation base band 61, arranges along insulation base band length direction interval.Different from a upper embodiment, in the present embodiment, sheet metal 62 is fixed in insulation base band 61 by binding agent 64, and its lower surface is fixed with insulation base band 62.Sheet metal 62 has the end 62a extended on insulation base band 61 Width.As shown in Figure 6, sheet metal 62 is cross, and it has the Part I extended along base band 61 Width that insulate and the Part II had along the extension of insulation base band 61 length direction, and the end of Part I is end 62a.
Preferably, the end 62b of the Part II of sheet metal 62 has the width narrowed gradually along bearing of trend, thus form wedge angle in its end, like this, in thunderbolt environment, due to the existence of highfield, charge inducing on sheet metal can be assembled to the wedge angle of end, strengthen the electric field strength between metal segments, thus, be conducive to the puncture voltage reducing lightning components.Meanwhile, when being with angular end 62b easily to puncture can to reduce manufacture, for the requirement of the spacing between sheet metal 62, even if larger spacing also can have satisfactory puncture voltage.
Flexible resin layer 63 is arranged in insulation base band 61, in the present embodiment, flexible resin layer 63 is arranged on the both sides on insulation base band 61 Width, is pressed in the top of sheet metal 62 end 62a, and the end 62a of sheet metal 62 is embedded in or below described flexible resin layer.
Because the end 62a of sheet metal 62 is by flexible resin layer 63 pile things on, therefore, it has stronger stable degree, makes sheet metal 62 not easily come off because of heating or loosen.
In thunder and lightning environment; electric field strength between sheet metal 62 strengthens; when this electric-field enhancing is to when exceeding predetermined threshold; the air that can puncture between sheet metal 62 forms plasma conducts electricity passage; thunder and lightning induced current is guided to flow through; thus protection radome is not breakdown, and then protect antenna and supporting electronic equipment.
In the present embodiment, sheet metal 62 can use arbitrary solid metallic or alloy, such as copper, stainless steel, aluminium etc.The thickness of sheet metal 62 can adjust according to actual conditions, and a preferred span is 0.1 to 0.3 millimeter.
Fig. 9 is the sectional view along A-A ' direction of thunder-lightning flow guide bar in another optional manner of the present embodiment.Wherein, sheet metal 62 is fixed on the top of insulation base band by binding agent 64.But different from Fig. 8 a-8c, the gap-fill of the sheet metal 62 of thunder-lightning flow guide bar 60 has the flexible resin identical with the flexible resin layer material of pile things on sheet metal end, both sides 62a.
Preferably, flexible resin layer 63 adopts conductive flexible resin, also namely with the flexible resin of conductive powder.Conductive powder contributes to the puncture voltage reducing flow guide bar further.The reduction of puncture voltage makes can suitably relax for the clearance requirement between sheet metal 62 during fabrication, thus reduces the requirement for manufacturing process, reduces costs.In flexible resin, the content of conductive powder can regulate according to the spacing between sheet metal, and spacing greatly then makes conductive powder content high, apart from little, makes conductive powder content low.The powder that conductive powder can select the various electric conducting material such as metal dust or carbon fiber powder to make.For metal dust, particle diameter generally can be selected at 10 micron dimension aluminium powders.
Should be understood that the thunder-lightning flow guide bar of the present embodiment is applied to metamaterial antenna cover, metamaterial antenna cover has Meta Materials as previously described in a prior embodiment, and meanwhile, the quantity of thunder-lightning flow guide bar is identical with previous embodiment with arrangement mode.
This end, by arranging the end extended along described insulation baseband width direction on sheet metal, is embedded in flexible resin layer, enhances the constant intensity of sheet metal by the present embodiment, does not affect the guide performance of thunder-lightning flow guide bar simultaneously.Meanwhile, the present embodiment need not arrange flexible resin layer at the zone line of insulation base band, and its manufacturing process can be simplified.
Be to be understood that this part only selected part embodiment exemplary illustration is carried out for the utility model, but not for limiting the utility model.All any amendments, equivalent replacement and improvement etc. made within the utility model spirit and principle, are all contained within protection range of the present utility model.
Claims (9)
1. a thunder-lightning flow guide bar, is characterized in that, described flow guide bar comprises:
Insulation base band;
Flexible resin layer, is arranged in described insulation base band;
Multiple sheet metal, is fixed in described insulation base band, arranges along described insulation base band length direction interval;
Described sheet metal comprises the end extended along described insulation baseband width direction, and described end is embedded in described flexible resin layer or below described flexible resin layer.
2. thunder-lightning flow guide bar according to claim 1, it is characterized in that, described sheet metal is cross sheet metal, described cross sheet metal comprises the end extended along described insulation base band length direction, and the described width along the end that described insulation base band length direction extends narrows gradually along bearing of trend.
3. thunder-lightning flow guide bar according to claim 1, is characterized in that, described sheet metal embeds and is arranged on described flexible resin layer, outside the part in a side surface of described sheet metal except the end extended along described insulation baseband width direction is exposed to.
4. thunder-lightning flow guide bar according to claim 1, is characterized in that, the spacing between described sheet metal is less than or equal to the thickness of described insulation base band.
5. thunder-lightning flow guide bar according to claim 1, is characterized in that, described flexible resin layer adopts conductive flexible resin.
6. thunder-lightning flow guide bar according to claim 5, is characterized in that, described insulation base band is polyester film.
7. a metamaterial antenna cover, is characterized in that, comprise the cover body that Meta Materials is formed, the surface of described cover body is fixedly installed at least one thunder-lightning flow guide bar according to any one of claim 1-6.
8. metamaterial antenna cover according to claim 7, it is characterized in that, described Meta Materials has the metal micro structure of array format, and the length of described thunder-lightning flow guide bar is greater than and is arranged in the length that cover body below it has the bearing of trend along described thunder-lightning flow guide bar in the region of metal micro structure.
9. metamaterial antenna cover according to claim 7, is characterized in that, described cover body surface is provided with groove, and described thunder-lightning flow guide bar is arranged in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478269.6U CN204045932U (en) | 2014-08-22 | 2014-08-22 | Thunder-lightning flow guide bar and metamaterial antenna cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478269.6U CN204045932U (en) | 2014-08-22 | 2014-08-22 | Thunder-lightning flow guide bar and metamaterial antenna cover |
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| Publication Number | Publication Date |
|---|---|
| CN204045932U true CN204045932U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420478269.6U Expired - Lifetime CN204045932U (en) | 2014-08-22 | 2014-08-22 | Thunder-lightning flow guide bar and metamaterial antenna cover |
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| CN (1) | CN204045932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262252A (en) * | 2017-07-18 | 2019-01-25 | 中国航空工业集团公司济南特种结构研究所 | A kind of device for the non-circular button straightness correction of shunt bar |
| CN111613891A (en) * | 2020-06-29 | 2020-09-01 | 中国舰船研究设计中心 | Lightning protection radome sandwich structure |
-
2014
- 2014-08-22 CN CN201420478269.6U patent/CN204045932U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262252A (en) * | 2017-07-18 | 2019-01-25 | 中国航空工业集团公司济南特种结构研究所 | A kind of device for the non-circular button straightness correction of shunt bar |
| CN111613891A (en) * | 2020-06-29 | 2020-09-01 | 中国舰船研究设计中心 | Lightning protection radome sandwich structure |
| CN111613891B (en) * | 2020-06-29 | 2021-01-19 | 中国舰船研究设计中心 | Lightning protection radome sandwich structure |
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Effective date of registration: 20151120 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 2, No. 9, building Patentee after: KUANG-CHI CUTTING EDGE TECHNOLOGY Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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Granted publication date: 20141224 |