CN106252897A - Transparent broadband Meta Materials wave absorbing device - Google Patents
Transparent broadband Meta Materials wave absorbing device Download PDFInfo
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- CN106252897A CN106252897A CN201610721042.3A CN201610721042A CN106252897A CN 106252897 A CN106252897 A CN 106252897A CN 201610721042 A CN201610721042 A CN 201610721042A CN 106252897 A CN106252897 A CN 106252897A
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- transparent
- transparency carrier
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- lower floor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses transparent broadband Meta Materials wave absorbing device, cellular construction including multiple periodic arrangement, described cellular construction includes the transparent resonance structure in upper strata, middle level transparency carrier and the lower floor's transparent reflecting layer being positioned at cellular construction center, the transparent resonance structure in described upper strata is positioned at the top of middle level transparency carrier, and described lower floor transparent reflecting layer is positioned at the lower section of middle level transparency carrier；The transparent resonance structure in described upper strata is symmetric figure, including the band minor matters ring that a ring is peripheral with being positioned at ring；The transparent resonance structure in described upper strata and lower floor's transparent reflecting layer are transparent conductive material.The present invention effectively can decay the reflectance of incident electromagnetic wave in X-band, and be simple to manufacture, technical maturity, overall structure light transmission excellence is capable of, at visible-range iuuminting rate >=80%, having the highest application prospect.
Description
Technical field
This patent relates to radar invisible and Novel manual electromagnetic material, particularly relates to a kind of transparent broadband material wave absorbing device.
Background technology
Traditional multiple resonant structures is the extension utilizing multiple-level stack technology to realize bandwidth mostly, so for transparent suction
For ripple device, cost is high, and while manufacturing difficulty, light transmission there will be serious deterioration.
The Novel manual electromagnetic material (Metamaterials) related in the present invention is tied by the sub-wavelength unit of certain scale
Structure periodic arrangement forms, and by its cellular construction of engineer, can control the effective dielectric constant of material, pcrmeability, refraction
The electromagnetic parameter such as rate, natural impedance, it is achieved the character that the material that nature exists does not has.Along with people are to novel artificial electromagnetism
Going deep into of materials theory research and application and development, its application in radar invisible field also result in the emerging of numerous research worker
Interest.Principle based on Meta Materials resonance absorbing, utilizes multiple resonant structures, by using transparent conductive material, reduces Meta Materials and inhales
Ripple device Q-value at resonance location, merges multiple resonance points and forms wide band absorption, meanwhile transparency carrier and electrically conducting transparent material
Material and the use of transparent adhesive so that entirety maintains high light transmission while ensureing wide band absorption, it is possible to realize existing
Visible region light transmittance >=80%.Particularly three layers transparent broadband Meta Materials wave absorbing device, it is possible to use two-layer is effectively protected up and down
Protect internal film plating layer, considerably increase the environmental resistance of wave absorbing device, there is high engineer applied and be worth.
Summary of the invention
Goal of the invention: in order to solve the problem that prior art exists, strengthening the Stealth Fighter of wave absorbing device, the present invention provides one
Plant transparent broadband Meta Materials wave absorbing device.
Technical scheme: the present invention provides a kind of transparent broadband Meta Materials wave absorbing device, including multiple cellular constructions, described unit
Structure includes the transparent resonance structure in upper strata, middle level transparency carrier and the lower floor's transparent reflecting layer being positioned at cellular construction center, described
The transparent resonance structure in upper strata is positioned at the top of middle level transparency carrier, and described lower floor transparent reflecting layer is positioned under the transparency carrier of middle level
Side；The transparent resonance structure in described upper strata is symmetric figure, including the band minor matters ring that a ring is peripheral with being positioned at ring；Described upper strata is saturating
Bright resonance structure and lower floor's transparent reflecting layer are transparent conductive material.
Preferably, also include that upper strata transparency carrier and lower floor's transparency carrier, the transparent resonance structure in described upper strata are positioned at upper strata
In the middle of transparency carrier and middle level transparency carrier, described lower floor transparent reflecting layer be positioned at middle level transparency carrier and lower floor's transparency carrier it
Between.
Preferably, described ring is square loop, and the length of side making cellular construction is a, and the thickness making middle level transparency carrier is h,
The transparent conductive material live width making the transparent resonance structure in upper strata is d, makes the gap between regular square ring and band minor matters Q-RING
For g, the length of side making square loop is L, makes a length of L ' of minor matters of band minor matters square loop, and value is as follows: a=10mm, h=
3.0mm, g=0.1mm, d=0.1mm, L=2.8mm, L '=2.8mm.
Preferably, described ring is square loop, and the length of side making cellular construction is a1, and upper strata transparency carrier thickness is h1, in
Layer transparency carrier thickness is h2, and lower floor's transparency carrier thickness is h3, transparent conductive material used in the transparent resonance structure in upper strata
Live width is d1, and annulus gap is g1, and the length of side of square loop is L1, a length of L1 ' of minor matters of peripheral band minor matters square loop, value
As follows: a1=10mm, h1=2.0mm, h2=3.0mm, h3=2.0mm, g1=0.7mm, d1=0.6mm, L1=2.0mm.
Beneficial effect: compare prior art, the one transparent broadband Meta Materials wave absorbing device that the present invention provides, structure letter
Single, processing technique is ripe, easy to process；The single layer structure manufacturing process that the present invention uses is relatively easy, it is only necessary to a step photoetching
Process, saves cost；And for the three-decker in the present invention, merely add layer and layer compared with the processing of single layer structure
Between bonding program, avoid multiple structure compared with conventional multilayer structure and align the mismachining tolerance caused, preparation technology letter
Single；There is broadband character, it is possible to achieve in X-band so that more than normal incidence reflection of electromagnetic wave rate 10dB decay；At visible ray
District has the light transmission of excellence, it is possible to realize light transmittance >=80%, has the visual effect of excellence, will not shadow in application process
Ring vision；Three layers of transparent broadband Meta Materials wave absorbing device, transparent windmill mechanism and transparent reflecting layer are in upper strata transparency carrier and lower floor
Between transparency carrier, it is possible to be effectively protected, there is the environmental suitability of excellence, shellproof grade can be done simultaneously and process,
There is high practical value.The internal ring of the transparent resonance structure in upper strata can be made with outer by each structural parameters of appropriate design wave absorbing device
Ring produces resonance respectively on close frequency, thus realizes multi-resonant and reach to widen the purpose of unit bandwidth.
Accompanying drawing explanation
Fig. 1 a is the individual unit structure front view of single-layer and transparent broadband Meta Materials wave absorbing device.
Fig. 1 b is the individual unit structural side view of single-layer and transparent broadband Meta Materials wave absorbing device.
Fig. 1 c is the size marking figure of the individual unit structure of single-layer and transparent broadband Meta Materials wave absorbing device.
Fig. 2 a is three layers of transparent broadband Meta Materials wave absorbing device individual unit structure front view.
Fig. 2 b is three layers of transparent broadband Meta Materials wave absorbing device individual unit structural side view.
Fig. 2 c is the size marking figure of three layers of transparent broadband Meta Materials wave absorbing device individual unit structure.
Fig. 3 is single-layer and transparent broadband Meta Materials wave absorbing device normal incidence reflectance simulation result.
Fig. 4 is the front schematic view on Meta Materials wave absorbing device surface, single-layer and transparent broadband.
Fig. 5 is three layers of transparent broadband Meta Materials wave absorbing device normal incidence reflectance simulation result.
Fig. 6 is the front schematic view on Meta Materials wave absorbing device surface, three layers of transparent broadband.
Detailed description of the invention
Below in conjunction with the accompanying drawings with detailed description of the invention, the invention will be further described.
Embodiment one: transparent broadband Meta Materials wave absorbing device is single-layer and transparent broadband Meta Materials wave absorbing device, including multiple cycles
The cellular construction of arrangement, as shown in Figure 4.Described cellular construction include being positioned at cellular construction center the transparent resonance structure in upper strata 1,
Middle level transparency carrier 2 and lower floor's transparent reflecting layer 3, the transparent resonance structure in described upper strata 1 is positioned at the top of middle level transparency carrier 2,
Described lower floor transparent reflecting layer 3 is positioned at the lower section of middle level transparency carrier 2, as shown in Figure 1 b；The transparent resonance structure in described upper strata 1 is
Symmetric figure, including the band minor matters ring that a ring is peripheral with being positioned at ring, the transparent resonance structure in upper strata 1 in the present embodiment is square
The band minor matters square loop that shape ring is peripheral with being positioned at square loop, the pinwheel shape as described in Fig. 1 a, it is also possible to be this area skill
Art personnel it is contemplated that other symmetric figures, such as annulus be positioned at band minor matters annulus, regular hexagon ring and the position that annulus is peripheral
In the band minor matters regular hexagon ring that regular hexagon ring is peripheral；The transparent resonance structure in described upper strata 1 is with lower floor transparent reflecting layer 3
Tin indium oxide, it would however also be possible to employ other transparent conductive materials is as thin in fluorine-doped tin dioxide, zinc oxide aluminum, tin-antiomony oxide, Graphene
Film, metal grill (metal mesh), metal nano wire material etc..The material of middle level transparency carrier 2 is glass, it is possible to use
Other transparent mediums, such as lucite, quartz glass, polyethylene terephthalate, polyether-ether-ketone etc..Described upper strata is transparent
Resonance structure 1 and lower floor's transparent reflecting layer 3 are plated in middle level transparency carrier 2 surface, and the transparent resonance structure in described upper strata 1 passes through
Etching, photoetching or chemical attack are formed.
Single-layer and transparent broadband Meta Materials wave absorbing device is principle based on Meta Materials resonance absorbing, utilizes symmetrical multi-resonant knot
Structure, by using transparent conductive material, reduces Meta Materials wave absorbing device Q-value at resonance location, thus by original sharp-pointed suction
Receive the smooth wide in range of peak change, thus multiple resonance points can be merged and form wide band absorption.The transparent resonance structure in upper strata 1 is by being positioned at
One regular square ring at center and peripherally located band minor matters square loop are constituted, and are typical multiple resonant structures unit.
By the annulus width of the transparent resonance structure in appropriate design upper strata 1, interannular gap size, the thickness of middle level transparency carrier 2 and
The transparent resonance structure in upper strata 1, the sheet resistance of lower floor's transparent reflecting layer 3, make the internal ring of the transparent resonance structure in upper strata 1 and outer shroud divide
On close frequency, do not produce resonance, thus realize multi-resonant and reach to widen the purpose of unit bandwidth.
As illustrated in figure 1 c, cellular construction is square, and the length of side making cellular construction is a, and the thickness of middle level transparency carrier 2 is
H, in the transparent resonance structure in upper strata 1, the live width of transparent conductive material used is d, is positioned at regular square ring and the position of unit center
Gap between the band minor matters square loop that this square loop is peripheral is g, and the square loop length of side is L, and peripheral band minor matters are square
The a length of L ' of minor matters of shape ring.A, h, g, d, L, L ' span of parameter includes, meets specific multi-resonant divide by dimensionally-optimised
The all values of cloth；The distribution of described multi-resonant refers to: multi-resonant position is close to each other and is distributed in the even broader frequency band of X-band,
Meanwhile resonance peak has low Q-value, in order to make resonance peak mutually merge, and forms wide band absorption.Each ginseng in the present embodiment
Number is specifically provided that a=10mm, h=3.0mm, g=0.1mm, d=0.1mm, L=2.8mm, L '=2.8mm.As Fig. 3 can
Seeing, result shows at X-band, normal incidence reflection of electromagnetic wave rate decay more than 10dB.
Embodiment two: transparent broadband Meta Materials wave absorbing device is three layers of transparent broadband Meta Materials wave absorbing device, including multiple cycles
The cellular construction of arrangement, as shown in Figure 6.Described cellular construction include being positioned at cellular construction center the transparent resonance structure in upper strata 4,
Upper strata transparency carrier 5, middle level transparency carrier 6, lower floor's transparency carrier 7 and lower floor's transparent reflecting layer 8, the transparent resonance in described upper strata is tied
Structure 4 is between upper strata transparency carrier 5 and middle level transparency carrier 6, and described lower floor transparent reflecting layer 8 is positioned at middle level transparency carrier 6
And between lower floor's transparency carrier 7, as shown in Figure 2 b；The transparent resonance structure in described upper strata 4 is symmetric figure, including a ring and position
In the band minor matters ring that ring is peripheral, the transparent resonance structure in upper strata 4 in the present embodiment is for square loop and is positioned at square loop periphery
Band minor matters square loop, the pinwheel shape as described in Fig. 2 a, it is also possible to be that other that it may occur to persons skilled in the art that are right
Claim figure, such as annulus be positioned at the peripheral band minor matters annulus of annulus, regular hexagon ring and be positioned at the band branch that regular hexagon ring is peripheral
Joint regular hexagon ring；The transparent resonance structure in described upper strata 4 and lower floor's transparent reflecting layer 8 are tin indium oxide, it would however also be possible to employ its
His transparent conductive material, such as fluorine-doped tin dioxide, zinc oxide aluminum, tin-antiomony oxide, graphene film, metal grill (metal
Mesh), metal nano wire material etc..Upper strata transparency carrier 5, middle level transparency carrier 6, the material of lower floor's transparency carrier 7 are glass,
Other transparent mediums can also be used, such as lucite, quartz glass, polyethylene terephthalate, polyether-ether-ketone etc..Institute
Stating the transparent resonance structure in upper strata 4 and be plated in middle level transparency carrier 6 surface with lower floor's transparent reflecting layer 8, described upper strata is transparent humorous
Structure of shaking 4 is formed by etching, photoetching or chemical attack.Described upper strata transparency carrier and middle level transparency carrier, the transparent base in middle level
Use transparent adhesive hot-forming between plate and lower floor's transparency carrier.
The absorption mechanism design of three layers of transparent broadband Meta Materials wave absorbing device and the method for absorbent properties regulation and single-layer and transparent
Broadband Meta Materials wave absorbing device is similar, i.e. big by the annulus width of the transparent resonance structure in appropriate design upper strata 4, interannular gap
Little, the transparent resonance structure of the thickness of upper, middle and lower layer transparency carrier and upper strata 4, the sheet resistance of lower floor's transparent reflecting layer 8, make
The internal ring of the transparent resonance structure 4 of layer and outer shroud produce resonance respectively on close frequency, thus realize multi-resonant and reach to widen
The purpose of unit bandwidth.
As shown in Figure 2 c, cellular construction is square, and the length of side making cellular construction is a1, and upper strata transparency carrier 5 thickness is
H1, middle level transparency carrier 6 thickness is h2, and lower floor's transparency carrier 7 thickness is h3, used in the transparent resonance structure in upper strata 4 transparent leads
The live width of electric material is d1, and annulus gap is g1, and the length of side of square loop is L1, and the minor matters of peripheral band minor matters square loop are a length of
L1’.A1, h1, h2, h3, g1, d1, L1, L1 ' span of parameter includes, meets specific multi-resonant be distributed by dimensionally-optimised
All values；The distribution of described multi-resonant refers to: multi-resonant position is close to each other and is distributed in the even broader frequency band of X-band, with
This simultaneously resonance peak there is low Q-value, in order to make resonance peak mutually merge, form wide band absorption.The parameter that the present embodiment is chosen
Specific as follows: a1=10mm, h1=2.0mm, h2=3.0mm, h3=2.0mm, g1=0.7mm, d1=0.6mm, L1=
2.0mm, L1 '=2.0mm.As shown in Figure 5, result shows at X-band, normal incidence reflection of electromagnetic wave rate decay more than 10dB.
Above-mentioned monolayer and three slice width band transparent metamaterial wave absorbing device, all can realize normal incidence reflection of electromagnetic wave at X-band
More than rate 10dB decay.
Above description and explain the principal character of the present invention, ultimate principle and advantages of the present invention.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention.Without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, such as skill
Above-mentioned various parameters can be modified by art personnel so that it is operated in its all band, or amendment relevant parameter is so that it is tied
Structure, performance are different with the present embodiment, and these changes and improvements both fall within scope of the claimed invention.The present invention wants
Protection domain is asked to be defined by claim and equivalent thereof.
Claims (10)
1. a transparent broadband Meta Materials wave absorbing device, it is characterised in that include the cellular construction of multiple periodic arrangement, described unit
Structure includes the transparent resonance structure in upper strata, middle level transparency carrier and the lower floor's transparent reflecting layer being positioned at cellular construction center, described
The transparent resonance structure in upper strata is positioned at the top of middle level transparency carrier, and described lower floor transparent reflecting layer is positioned under the transparency carrier of middle level
Side；The transparent resonance structure in described upper strata is symmetric figure, including the band minor matters ring that a ring is peripheral with being positioned at ring；Described upper strata is saturating
Bright resonance structure and lower floor's transparent reflecting layer are transparent conductive material.
Transparent broadband the most according to claim 1 Meta Materials wave absorbing device, it is characterised in that the transparent resonance structure in described upper strata
Being plated in transparency carrier surface with lower floor transparent reflecting layer, the transparent resonance structure in described upper strata is by etching, photoetching or chemistry
Corrosion is formed.
Transparent broadband the most according to claim 1 and 2 Meta Materials wave absorbing device, it is characterised in that also include the transparent base in upper strata
Plate and lower floor's transparency carrier, the transparent resonance structure in described upper strata is positioned in the middle of upper strata transparency carrier and middle level transparency carrier, described
Lower floor's transparent reflecting layer is between middle level transparency carrier and lower floor's transparency carrier.
Transparent broadband the most according to claim 1 and 2 Meta Materials wave absorbing device, it is characterised in that described middle level transparency carrier
Material be one or more in glass, lucite, quartz glass, polyethylene terephthalate, polyether-ether-ketone.
Transparent broadband the most according to claim 1 and 2 Meta Materials wave absorbing device, it is characterised in that the transparent resonance in described upper strata
Structure and described lower floor transparent reflecting layer be tin indium oxide, fluorine-doped tin dioxide, zinc oxide aluminum, tin-antiomony oxide, graphene film,
One or more in metal grill, metal nano wire material.
Transparent broadband the most according to claim 3 Meta Materials wave absorbing device, it is characterised in that described upper strata transparency carrier with under
The material of layer transparency carrier is in glass, quartz glass, lucite, polyethylene terephthalate, polyether-ether-ketone
Plant or several.
Transparent broadband the most according to claim 3 Meta Materials wave absorbing device, it is characterised in that described upper strata transparency carrier with in
Layer transparency carrier, between middle level transparency carrier and lower floor's transparency carrier use transparent adhesive hot-forming.
Transparent broadband the most according to claim 1 and 2 Meta Materials wave absorbing device, it is characterised in that described cellular construction is just
Square, described ring is square loop, and described band minor matters ring is band minor matters square loop.
Transparent broadband the most according to claim 8 Meta Materials wave absorbing device, it is characterised in that the length of side making cellular construction is a,
The thickness making middle level transparency carrier is h, and the transparent conductive material live width making the transparent resonance structure in upper strata is d, makes regular square ring
With the gap between band minor matters Q-RING is g, the length of side making square loop is L, and the minor matters making band minor matters square loop are a length of
L ', value is as follows: a=10mm, h=3.0mm, g=0.1mm, d=0.1mm, L=2.8mm, L '=2.8mm.
Transparent broadband the most according to claim 3 Meta Materials wave absorbing device, it is characterised in that described cellular construction is square
Shape, described ring is square loop, and described band minor matters ring is band minor matters square loop, and the length of side making cellular construction is a1, and upper strata is saturating
Bright substrate thickness is h1, and middle level transparency carrier thickness is h2, and lower floor's transparency carrier thickness is h3, institute in the transparent resonance structure in upper strata
Being d1 by the live width of transparent conductive material, annulus gap is g1, and the length of side of square loop is L1, peripheral band minor matters square loop
The a length of L1 ' of minor matters, value is as follows: a1=10mm, h1=2.0mm, h2=3.0mm, h3=2.0mm, g1=0.7mm, d1=
0.6mm, L1=2.0mm, L1 '=2.0mm.
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Cited By (19)
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| CN106992364A (en) * | 2017-04-30 | 2017-07-28 | 电子科技大学 | A kind of transparent electromagnetic darkroom |
| CN107809006A (en) * | 2017-10-22 | 2018-03-16 | 南京理工大学 | Transparent ultra-wideband microwave wave absorbing device based on transparent conductive film |
| CN108711681A (en) * | 2018-04-10 | 2018-10-26 | 东南大学 | A kind of difunctional Meta Materials of sound insulation microwave stealth |
| CN109687162A (en) * | 2018-11-19 | 2019-04-26 | 电子科技大学 | A kind of adjustable three frequency ranges THz meta-material absorber based on dirac material |
| CN111048908A (en) * | 2018-10-12 | 2020-04-21 | 南京大学 | Design method of optical transparent broadband super-surface Salisbury screen wave-absorbing structure |
| CN111207626A (en) * | 2020-01-08 | 2020-05-29 | 北京航天发射技术研究所 | Compatible radar and optical characteristic conversion device |
| CN111525272A (en) * | 2020-04-06 | 2020-08-11 | 桂林电子科技大学 | Broadband terahertz wave absorber based on three-dart-shaped graphene |
| CN111585040A (en) * | 2020-04-21 | 2020-08-25 | 桂林电子科技大学 | All-dielectric wave absorber based on graphene and Dirac semimetal |
| CN111817022A (en) * | 2020-07-13 | 2020-10-23 | 中国电子科技集团公司第三十三研究所 | Broadband ultrathin wave-absorbing metamaterial for visual window of aircraft |
| CN112038777A (en) * | 2020-09-15 | 2020-12-04 | 江苏易珩空间技术有限公司 | Electromagnetic space regulation and control system composed of transparent super surface and application thereof |
| CN112688084A (en) * | 2020-12-17 | 2021-04-20 | 宁波大学 | Electromagnetic absorption structure with optical transparency and adjustable wave-absorbing frequency |
| CN112928492A (en) * | 2021-01-25 | 2021-06-08 | 中国科学院上海光学精密机械研究所 | Tunable optical transparent broadband metamaterial wave absorber based on water layer |
| CN113097741A (en) * | 2021-03-05 | 2021-07-09 | 宁波大学 | Optically transparent broadband electromagnetic absorption structure with adjustable wave-absorbing amplitude |
| CN113328261A (en) * | 2021-05-11 | 2021-08-31 | 中国科学院上海光学精密机械研究所 | Double-resonance broadband transparent metamaterial wave absorber based on toothed bending ring and square ring |
| CN113517569A (en) * | 2021-04-29 | 2021-10-19 | 杭州光学精密机械研究所 | Metamaterial optical window and preparation method thereof |
| CN113871895A (en) * | 2021-09-03 | 2021-12-31 | 西安电子科技大学 | Transparent wave absorber of groove type resonance layer and mesh floor |
| CN114421175A (en) * | 2022-03-04 | 2022-04-29 | 浙江大学 | Large-incidence-angle stable suction-transmission integrated conformal frequency selective surface |
| CN114465015A (en) * | 2022-01-05 | 2022-05-10 | 南京航空航天大学 | Light-transmitting flexible metamaterial wave absorber with low infrared emissivity |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992364A (en) * | 2017-04-30 | 2017-07-28 | 电子科技大学 | A kind of transparent electromagnetic darkroom |
| CN107809006A (en) * | 2017-10-22 | 2018-03-16 | 南京理工大学 | Transparent ultra-wideband microwave wave absorbing device based on transparent conductive film |
| CN108711681B (en) * | 2018-04-10 | 2020-06-30 | 东南大学 | Sound insulation microwave stealth dual-function metamaterial |
| CN108711681A (en) * | 2018-04-10 | 2018-10-26 | 东南大学 | A kind of difunctional Meta Materials of sound insulation microwave stealth |
| CN111048908A (en) * | 2018-10-12 | 2020-04-21 | 南京大学 | Design method of optical transparent broadband super-surface Salisbury screen wave-absorbing structure |
| CN111048908B (en) * | 2018-10-12 | 2021-07-09 | 南京大学 | Design method of optical transparent broadband super-surface Salisbury screen wave-absorbing structure |
| CN109687162A (en) * | 2018-11-19 | 2019-04-26 | 电子科技大学 | A kind of adjustable three frequency ranges THz meta-material absorber based on dirac material |
| CN111207626A (en) * | 2020-01-08 | 2020-05-29 | 北京航天发射技术研究所 | Compatible radar and optical characteristic conversion device |
| CN111525272A (en) * | 2020-04-06 | 2020-08-11 | 桂林电子科技大学 | Broadband terahertz wave absorber based on three-dart-shaped graphene |
| CN111525272B (en) * | 2020-04-06 | 2021-07-30 | 桂林电子科技大学 | Broadband terahertz wave absorber based on three-dart-shaped graphene |
| CN111585040B (en) * | 2020-04-21 | 2022-03-15 | 桂林电子科技大学 | All-dielectric wave absorber based on graphene and Dirac semimetal |
| CN111585040A (en) * | 2020-04-21 | 2020-08-25 | 桂林电子科技大学 | All-dielectric wave absorber based on graphene and Dirac semimetal |
| CN111817022A (en) * | 2020-07-13 | 2020-10-23 | 中国电子科技集团公司第三十三研究所 | Broadband ultrathin wave-absorbing metamaterial for visual window of aircraft |
| CN112038777A (en) * | 2020-09-15 | 2020-12-04 | 江苏易珩空间技术有限公司 | Electromagnetic space regulation and control system composed of transparent super surface and application thereof |
| CN112688084A (en) * | 2020-12-17 | 2021-04-20 | 宁波大学 | Electromagnetic absorption structure with optical transparency and adjustable wave-absorbing frequency |
| CN112688084B (en) * | 2020-12-17 | 2023-02-14 | 宁波大学 | Electromagnetic absorption structure with optical transparency and adjustable wave-absorbing frequency |
| CN112928492A (en) * | 2021-01-25 | 2021-06-08 | 中国科学院上海光学精密机械研究所 | Tunable optical transparent broadband metamaterial wave absorber based on water layer |
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| CN113097741A (en) * | 2021-03-05 | 2021-07-09 | 宁波大学 | Optically transparent broadband electromagnetic absorption structure with adjustable wave-absorbing amplitude |
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