CN202231160U - Antenna based on metamaterial - Google Patents
Antenna based on metamaterial Download PDFInfo
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- CN202231160U CN202231160U CN2011201639688U CN201120163968U CN202231160U CN 202231160 U CN202231160 U CN 202231160U CN 2011201639688 U CN2011201639688 U CN 2011201639688U CN 201120163968 U CN201120163968 U CN 201120163968U CN 202231160 U CN202231160 U CN 202231160U
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Abstract
The utility model relates to an antenna based on a metamaterial, comprising a radiation source and a metamaterial panel with a function of collecting electromagnetic wave and used for converting the electromagnetic wave emitted by the radiation source to a planar wave, wherein the metamaterial panel comprises a plurality of core layers and a plurality of gradient layers symmetrically distributed at the both sides of each of the core layers; and each core layer and each gradient layer comprise a sheet-shaped substrate and a plurality of artificial microstructures disposed on the substrate respectively. The antenna based on a metamaterial disclosed by the utility model converts the electromagnetic wave emitted by the radiation source to a planar wave via the design of a metamaterial panel and the refractive index changes on the core layers, on the gradient layers and between the core layers and the gradient layers, thereby improving the collection performance of antenna, greatly reducing reflection loss and then avoiding the reduction of electromagnetic energy, increasing transmission distance, and improving the performance of antenna.
Description
Technical field
The utility model relates to field of antenna, more particularly, relates to the antenna based on ultra material.
Background technology
In the optics of routine, become plane wave after utilizing lens to make to be positioned at spherical wave that the point-source of light on the lens focus gives off through the lens refraction.Lens antenna is made up of lens and the radiator that is placed on the lens focus, the characteristic of utilizing lens to converge, and the electromagnetic wave that radiator is given off passes through the antenna of launching again after lens converge, and this antenna directivity is more intense.
Converging of lens is to rely on the refraction of the spherical shape of lens to realize at present, and as shown in Figure 1, the spherical wave that radiator 30 sends converges the back through spherical lens 40 and penetrates with plane wave.Utility model people is in implementing the utility model process, and find that there is following technical problem at least in lens antenna: the volume of sphere lens 40 is big and heavy, is unfavorable for the use of miniaturization; Sphere lens 40 has very big dependence for shape, needs relatively precisely could realize the direction propagation of antenna; Reflection of electromagnetic wave interference and loss ratio are more serious, and electromagnetic energy reduces.When electromagnetic wave passed through the interface of different medium, the partial reflection phenomenon can take place.Usually the big more reflection of electromagnetic parameter (dielectric constant or magnetic permeability) gap of both sides medium will be big more.Because the electromagnetic reflection of part, will corresponding loss along the electromagnetic energy of the direction of propagation, have a strong impact on the distance and the signal transmission quality of electromagnetic signal propagation.
The utility model content
The technical problem that the utility model will solve is that the defective that above-mentioned reflection loss is big, electromagnetic energy reduces to prior art provides a kind of antenna based on ultra material.
The utility model solves the technical scheme that its technical problem adopted: construct a kind of antenna based on ultra material, comprising: radiation source and have the electromagnetic wave aggregation feature and be used for the electromagnetic wave that said radiation source is launched is converted into the ultra material panel of plane wave; A plurality of graded beddings that said ultra material panel comprises a plurality of core layers and is symmetrically distributed in said core layer both sides, each core layer includes the substrate of sheet and is arranged on a plurality of artificial micro-structural on the said substrate with each graded bedding.
In the described antenna of the utility model; The refraction index profile of each core layer is all identical; Each core layer comprises a border circular areas and a plurality of annular regions concentric with said border circular areas, in said border circular areas and the said annular region refractive index along with the increase of radius from n
pBe reduced to n continuously
0And the refractive index at same radius place is identical.
In the described antenna of the utility model; Each graded bedding that is distributed in said core layer the same side includes a border circular areas and a plurality of annular regions concentric with said border circular areas, and the corresponding said border circular areas of each graded bedding is identical with variations in refractive index scope in the said annular region and along with the increase of radius is reduced to n continuously from its largest refractive index
0, the refractive index at same radius place is identical, and the largest refractive index of two adjacent graded beddings is expressed as n
iAnd n
I+1, n wherein
0＜n
i＜n
I+1＜n
p, i is a positive integer, n
iCorresponding to the said core layer of distance graded bedding far away.
In the described antenna of the utility model, said a plurality of artificial micro-structurals of each core layer have identical geometry, and the size of artificial micro-structural reduces along with the increase of radius and the artificial micro-structural at same radius place measure-alike continuously in each zone.
In the described antenna of the utility model; Said a plurality of artificial micro-structurals of each graded bedding have identical geometry; The size of artificial micro-structural reduces along with the increase of radius and the artificial micro-structural at same radius place measure-alike continuously in each zone, and the size of the artificial micro-structural at same radius place is less in the corresponding the same area of two adjacent said core layers of graded bedding middle distance graded bedding far away.
In the described antenna of the utility model, said artificial micro-structural is planar structure or the stereochemical structure of being made up of at least one one metal wire.
In the described antenna of the utility model, said wire is copper wire or filamentary silver.
In the described antenna of the utility model, said wire through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the substrate.
In the described antenna of the utility model, said artificial micro-structural is " worker " font, " ten " font or " H " shape.
In the described antenna of the utility model, said substrate is made by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
Implement the technical scheme of the utility model; Have following beneficial effect: the electromagnetic wave of radiation source being launched through the variations in refractive index that designs between reaching separately on ultra material panel core layer and the graded bedding converts plane wave into; Thereby improved the performance that converges of antenna, significantly reduced reflection loss, also just avoided the minimizing of electromagnetic energy; Strengthen transmission range, improved antenna performance.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is that the lens antenna of existing spherical shape converges electromagnetic sketch map;
Fig. 2 is that the antenna based on ultra material of the utility model one embodiment converges electromagnetic sketch map;
Fig. 3 is the structural representation of ultra material panel 10 shown in Figure 2;
Fig. 4 is the sketch map of the refractive index of core layer with change in radius;
Fig. 5 is the sketch map of the refractive index of graded bedding with change in radius;
Fig. 6 is the refractive index profile of core layer on the yz plane of ultra material panel;
Fig. 7 is the refractive index profile of i layer graded bedding on the yz plane of ultra material panel.
Embodiment
Ultra material is a kind ofly to be elementary cell and to carry out spatial arrangement, have the new material of special electromagnetic response with ad hoc fashion with artificial micro-structural 302, comprises artificial micro-structural 302 and the substrate 301 that supplies artificial micro-structural to adhere to.Artificial micro-structural 302 is planar structure or the stereochemical structure of being made up of at least one one metal wire, a plurality of artificial micro-structurals 302 array arrangement on substrate 301, each artificial micro-structural 302 with and appended substrate 301 shared parts be a ultra material cell.Substrate 301 can be any and artificial micro-structural 302 material different, and the stack of these two kinds of materials makes each ultra material cell produce an effective dielectric constant and magnetic permeability, these two physical parameters the are corresponding respectively electric field response and the magnetic responsiveness of ultra material cell.Ultra material is that characteristic by artificial micro-structural 302 determines to the characteristic of electromagnetic response, and topological characteristic and its physical dimension that the electromagnetic response of artificial micro-structural 302 depends on its pattern wiry to a great extent and had.According to the topological graph and the physical dimension of each artificial micro-structural 302 of arranging in the ultra material space of above-mentioned principle design, just can the electromagnetic parameter of every bit in the ultra material be provided with.
Fig. 2 shows a kind of antenna based on ultra material, comprising: radiation source 20 and the ultra material panel 10 with electromagnetic wave aggregation feature, ultra material panel 10 are used for converting the electromagnetic wave of radiation source 20 emissions into plane wave.Antenna is seen shown in Figure 2 to electromagnetic convergence effect.
We can know as common practise; Electromagnetic refractive index is proportional with
; When a branch of electromagnetic wave is propagated into other a kind of medium by a kind of medium; Electromagnetic wave can reflect; When the inner refraction index profile of material was non-homogeneous, electromagnetic wave will be to the bigger position deviation of refractive index ratio, through designing the electromagnetic parameter of every bit in the ultra material; Just can adjust, and then reach the purpose that changes the electromagnetic wave propagation path the refraction index profile of ultra material.The electromagnetic wave that the spherical wave form sent from radiation source 20 is dispersed according to above-mentioned principle is transformed into the electromagnetic wave of the plane wave form that is suitable for long-distance transmissions.
Fig. 3 is the structural representation of ultra material panel 10 shown in Figure 2; A plurality of graded beddings that ultra material panel 10 comprises a plurality of core layers and is symmetrically distributed in the core layer both sides, each core layer includes the substrate 301 of sheet and is arranged on a plurality of artificial micro-structural 302 on the substrate 301 with each graded bedding.Each artificial micro-structural 302 with and appended substrate 301 shared parts be a ultra material cell.Ultra material panel 10 is piled up by a plurality of ultra sheet of material and forms, and equidistantly arranges the ground assembling between this each ultra sheet of material, or in twos between the lamella direct forward and backward surface link into an integrated entity bondingly.During practical implementation, the number of ultra sheet of material can design according to demand.Each ultra sheet of material is formed by a plurality of ultra material cell arrays, and whole ultra material panel 10 can be regarded as by a plurality of ultra material cell and forms along X, Y, three direction array arrangements of Z.Through to the topological pattern of artificial micro-structural 302, physical dimension with and the design that on substrate 301, distributes; The refraction index profile of the core layer in the middle of making satisfies following rule: the refraction index profile of each layer is all identical; Each core layer comprises a border circular areas and a plurality of annular regions concentric with said border circular areas, in said border circular areas and the said annular region refractive index along with the increase of radius from n
pBe reduced to n continuously
0And the refractive index at same radius place is identical.
As shown in Figure 3, only show 7 layers, wherein middle three layers is core layer 3, and the two-layer of core layer both sides is graded bedding 1,2, and the symmetrical distribution of the graded bedding of both sides, and promptly the graded bedding characteristic apart from core layer same distance place is identical.The core layer of the ultra material panel among Fig. 3 and the quantity of graded bedding are merely example, can be provided with according to needs.The thickness of the ultra material panel of supposing finally to process is D, and the thickness of each layer is t, and the number of plies of the graded bedding of core layer one side is c, and the wavelength of ultra material panel 10 work is λ
1, the variations in refractive index interval of core layer is n
Max～n
Min, Δ n=n
Max-n
Min, the number of plies of core layer is b, then the number of plies c of core layer b and graded bedding has following relation: (b+c) t=λ
1/ Δ n; D=b+2c.Wherein, graded bedding mainly is in order to realize the cushioning effect of refractive index, and the bigger variation of refractive index reduces electromagnetic reflection when avoiding electromagnetic wave incident, and plays the effect of impedance matching and phase compensation.
With three layers of core layer; Each two-layer graded bedding of core layer both sides is an example; Three layers of core layer for the centre; The refraction index profile of each layer is all identical, and each core layer comprises a border circular areas and a plurality of annular regions concentric with said border circular areas, in said border circular areas and the said annular region refractive index along with the increase of radius from n
pBe reduced to n continuously
0And the refractive index at same radius place is identical.The refractive index of core layer is as shown in Figure 4 with the sketch map of change in radius.As an example, each core layer comprises three zones, and the first area is a border circular areas, and its radius length is L1; Second area is an annular region, and annular width is changed to L2 from L1; The 3rd zone is an annular region, and annular width is changed to L3 from L2, three zones along radius augment direction refractive index successively from n
p(be n
Max) be reduced to n
0(be n
Min), n
p＞n
0The refraction index profile of each of core layer layer is all identical.
The refractive index of graded bedding is as shown in Figure 5 with the sketch map of change in radius.With the distributional class of core layer seemingly, difference only is that each regional largest refractive index is different, the largest refractive index of core layer is n
p, the largest refractive index of graded bedding is n
i, and different graded bedding n
iDifferent.Each graded bedding that is distributed in core layer the same side includes a border circular areas and a plurality of annular regions concentric with said border circular areas, and two corresponding border circular areas and interior largest refractive indexs of annular region of adjacent graded bedding are expressed as n
iAnd n
I+1, n wherein
0＜n
i＜n
I+1＜n
p, i is a positive integer, n
iCorresponding to the said core layer of distance graded bedding far away; Said border circular areas that each graded bedding is corresponding and the refractive index in the said annular region are along with the increase of radius is reduced to n continuously from its largest refractive index
0And the refractive index at same radius place is identical.That is to say, for Fig. 3, the two-layer graded bedding in core layer left side, wherein leftmost graded bedding largest refractive index is n
1, another graded bedding largest refractive index is n
2, and n
0＜n
1＜n
2＜n
pIn like manner, because the graded bedding of core layer both sides is symmetrically distributed, therefore, it is identical that rightmost graded bedding and leftmost graded bedding refractive index are arranged, and the graded bedding on inferior the right is arranged identical with the graded bedding refractive index on the inferior left side.
For the refraction index profile of concrete each layer of ultra material panel along with the available following formula of the variation of radius r is represented:
Wherein which layer i representes, and i>=1, certainly as far as nearly (apart from the distance of core layer) i=1,2; N=c+1, c represent the number of plies of a side graded bedding; n
MaxThe largest refractive index of expression core layer, n
MinThe minimum refractive index of expression core layer; R is a radius; S representes the distance of radiation source and ultra material panel; D=(b+c) t, b representes the number of plies of core layer, and t representes the thickness of each layer, and c representes the number of plies of a side graded bedding; L (j) representes the start radius that each is regional, and which zone j representes, j>=1; The wherein start radius of L (1) expression first area (being border circular areas), so L (1)=0, the start radius of L (2) expression second area (annular region); The start radius in L (3) expression the 3rd zone (annular region), and the like, for Fig. 4 or shown in Figure 5; L (2)=L1, L (3)=L1+L2, L (4)=L1+L2+L3.Wherein, no matter be graded bedding or core layer, the value of the L (j) that each of each layer is regional is all identical; If will calculate the n (r) of first area, then above-mentioned formula L (j) value is L (1)=0, if will calculate the n (r) of second area; Then above-mentioned formula L (j) value is L (2), by that analogy.
For ultra material panel as shown in Figure 3, label is 1 graded bedding, and the i value is 1 in following formula; Label is that the i value is 2 in 2 the graded bedding following formula, is 3 core layer for label, and the i value is 3; The number of plies c=2 of one side graded bedding, the number of plies b=3 of core layer, N=c+1=3.
Be example with one group of experimental data below, the implication of the above-mentioned formula of illustrated in detail: the frequency f=15GHz of incident electromagnetic wave, wavelength X
1=2cm, the wavelength that antenna can be worked simultaneously are λ
2=0.67cm, λ
3=1cm (certain λ
1Also be the operation wavelength of antenna, that is to say to may be simultaneously operated in three wavelength at least), n
Max=6, n
Min=1, Δ n=5, s=20cm, L (1)=0cm, L (2)=9.17cm, L (3)=13.27cm, L (4)=16.61cm, c=2, N=c+1=3; Thickness t=the 0.818mm of each layer; Relation (b+c) t=λ according to the number of plies c of the number of plies b of core layer and graded bedding
1/ Δ n can get b=3; D=(b+c) t=5*0.818.The refraction index profile of ultra each layer of material panel is following:
For graded bedding, certainly as far as nearly (apart from the distance of core layer) i=1,2.
The ground floor graded bedding:
The value of each area L (j) in first graded bedding is different, wherein, and first area j=1, L (j)=L (1)=0; Second area j=2, L (j)=L (2)=9.17cm; The 3rd regional j=3, L (j)=L (3)=13.27cm.
Second layer graded bedding:
The value of each area L (j) in second graded bedding is different, wherein, and first area j=1, L (j)=L (1)=0; Second area j=2, L (j)=L (2)=9.17cm; The 3rd regional j=3, L (j)=L (3)=13.27cm.
For core layer, the refraction index profile of each layer is all identical, also promptly is n
3(r):
Through above-mentioned formula, can obtain following rule, the ultra material panel largest refractive index of each layer from left to right reduces successively; For example; Ground floor graded bedding largest refractive index n=2, second layer graded bedding largest refractive index n=4, third and fourth, five layers of core layer largest refractive index n=6; Because graded bedding is symmetrically distributed, so right side graded bedding right-to-left ground floor graded bedding largest refractive index n=2, second layer graded bedding largest refractive index n=4.That is to say the largest refractive index n of graded bedding shown in Figure 5
i(along with big more apart from the nearlyer i of core layer) satisfies following rule: n
I+1＞n
i, for core layer, largest refractive index is n
pPreceding text are merely example about the concrete value in the formula, not as the restriction to the utility model.In practical application, can adjust according to needs.Can change as required such as number of plies of largest refractive index, minimum refractive index, graded bedding or the like.
Satisfying the ultra material panel 10 of above-mentioned variations in refractive index relation, for the electromagnetic wave that the spherical wave form of sending from radiation source 20 is dispersed, is n with the refractive index
iOr n
pUltra material cell be the center of circle; Along with the refractive index variable quantity of the ultra material panel 10 of the increase of radius on the yz plane increases gradually; The deviation angle is big during along with the increase incident electromagnetic wave outgoing of radius, and is more little the closer to its outgoing deflection angle of ultra material cell incident electromagnetic wave at place, the center of circle.Through certain designed and calculating, make these deflection angles satisfy certain rules successively, can realize the parallel outgoing of sphere electromagnetic wave.Be similar to convex lens,, can design corresponding surface curvature characteristic and make from the parallel outgoing of lens focus incident divergent rays as long as know each surface point to the deviation angle of light and the refractive index of material.The utility model in like manner based on the antenna of ultra material artificial micro-structural through each ultra material cell of design; Obtain the DIELECTRIC CONSTANTS and the magnetic permeability μ of this unit; And then make the change of refractive of each adjacent ultra material cell can realize the deviation angle that electromagnetic wave is specific to the refraction index profile design of ultra material panel 10, can realize that electromagnetic wave that the spherical wave form is dispersed changes the electromagnetic wave of plane form into.
In order to represent ultra sheet of material refractive index refractive index regularity of distribution on the yz face more intuitively; The ultra material cell that refractive index is identical is linked to be a line; And represent the size of refractive index with the density of line; The close more refractive index of line is big more, and each the core layer refraction index profile of ultra sheet of material that then meets above all relational expressions is as shown in Figure 6, and largest refractive index is n
p, minimum refractive index is n
0The refraction index profile of graded bedding and core layer refraction index profile are similar, but the largest refractive index of each layer of graded bedding is different, as shown in Figure 7, and the largest refractive index of i layer graded bedding is n
i, minimum refractive index is n
0, the largest refractive index n of graded bedding
i(along with big more apart from the nearlyer i of core layer) satisfies following rule: n
I+1＞n
i
The experiment proof; The artificial micro-structural 302 of identical patterns; Its physical dimension becomes the ε direct ratio with dielectric constant, therefore under the situation that incident electromagnetic wave is confirmed, and artificial micro-structural 302 the arranging on ultra sheet of material of topological pattern and different size through the artificial micro-structural 302 of appropriate design; Just can adjust the refraction index profile of ultra material panel 10, and then realize that electromagnetic wave that the spherical wave form is dispersed changes the electromagnetic wave of plane form into.
But the artificial micro-structural 302 that realizes above-mentioned refractive index and refractive index variable quantity distribution relation has a variety of implementations, and for the artificial micro-structural 302 of planar structure, its geometry can be that axial symmetry also can non-axial symmetry; For three-dimensional structure, it can the rotational symmetric any 3-D graphic of right and wrong 90 degree.
Artificial micro-structural is planar structure or the stereochemical structure of being made up of at least one one metal wire.Wire is copper wire or filamentary silver, can be through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the substrate.
The electromagnetic wave that the utility model is launched radiation source through the variations in refractive index that designs between reaching separately on ultra material panel core layer and the graded bedding converts plane wave into; Thereby improved the performance that converges of antenna; Significantly reduced reflection loss; Also just avoid the minimizing of electromagnetic energy, strengthened transmission range, improved antenna performance.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (10)
1. the antenna based on ultra material is characterized in that, comprising: radiation source with have the electromagnetic wave aggregation feature and be used for the electromagnetic wave of said radiation source emission is converted into the ultra material panel of plane wave; A plurality of graded beddings that said ultra material panel comprises a plurality of core layers and is symmetrically distributed in said core layer both sides, each core layer includes the substrate of sheet and is arranged on a plurality of artificial micro-structural on the said substrate with each graded bedding.
2. antenna according to claim 1; It is characterized in that; The refraction index profile of each core layer is all identical, and each core layer comprises a border circular areas and a plurality of annular regions concentric with said border circular areas, in said border circular areas and the said annular region refractive index along with the increase of radius from n
pBe reduced to n continuously
0And the refractive index at same radius place is identical, n
pBe the largest refractive index of core layer, n
0Minimum refractive index for core layer.
3. antenna according to claim 2; It is characterized in that; Each graded bedding that is distributed in said core layer the same side includes a border circular areas and a plurality of annular regions concentric with said border circular areas, and the corresponding said border circular areas of each graded bedding is identical with variations in refractive index scope in the said annular region and along with the increase of radius is reduced to n continuously from its largest refractive index
0, the refractive index at same radius place is identical, and the largest refractive index of two adjacent graded beddings is expressed as n
iAnd n
I+1, n wherein
0＜n
i＜n
I+1＜n
p, i is a positive integer, n
iCorresponding to the said core layer of distance graded bedding far away.
4. antenna according to claim 3; It is characterized in that; Said a plurality of artificial micro-structurals of each core layer have identical geometry, and the size of artificial micro-structural reduces along with the increase of radius and the artificial micro-structural at same radius place measure-alike continuously in each zone.
5. antenna according to claim 4; It is characterized in that; Said a plurality of artificial micro-structurals of each graded bedding have identical geometry; The size of artificial micro-structural reduces along with the increase of radius and the artificial micro-structural at same radius place measure-alike continuously in each zone, and the size of the artificial micro-structural at same radius place is less in the corresponding the same area of two adjacent said core layers of graded bedding middle distance graded bedding far away.
6. according to each described antenna of claim 2～5, it is characterized in that said artificial micro-structural is planar structure or the stereochemical structure of being made up of at least one one metal wire.
7. antenna according to claim 6 is characterized in that, said wire is copper wire or filamentary silver.
8. antenna according to claim 6 is characterized in that, said wire through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the substrate.
9. antenna according to claim 6 is characterized in that, said artificial micro-structural is " worker " font, " ten " font or " H " shape.
10. antenna according to claim 1 is characterized in that, said substrate is made by ceramic material, epoxy resin, polytetrafluoroethylene, FR-4 composite material or F4B composite material.
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| CN2011201639688U CN202231160U (en) | 2011-05-20 | 2011-05-20 | Antenna based on metamaterial |
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| CN103579770A (en) * | 2012-07-31 | 2014-02-12 | 深圳光启创新技术有限公司 | Metamaterial, manufacturing method and metamaterial antenna |
| CN103682669A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682666B (en) * | 2012-08-31 | 2017-10-20 | 深圳光启岗达创新科技有限公司 | A kind of metamaterial microwave antenna |
| CN103682663A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682662A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682666A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682664A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682661A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682671A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682665B (en) * | 2012-08-31 | 2018-05-22 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103682662B (en) * | 2012-08-31 | 2018-02-23 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103682669B (en) * | 2012-08-31 | 2017-09-19 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103682664B (en) * | 2012-08-31 | 2017-09-19 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103682661B (en) * | 2012-08-31 | 2017-10-20 | 深圳光启岗达创新科技有限公司 | A kind of metamaterial microwave antenna |
| CN103682665A (en) * | 2012-08-31 | 2014-03-26 | 深圳光启创新技术有限公司 | Metamaterial microwave antenna |
| CN103682671B (en) * | 2012-08-31 | 2017-10-31 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103682663B (en) * | 2012-08-31 | 2017-11-24 | 深圳光启创新技术有限公司 | A kind of metamaterial microwave antenna |
| CN103050776A (en) * | 2012-12-20 | 2013-04-17 | 山东国威卫星通信有限公司 | High-gain high-efficiency flat plate antenna loaded with left-handed material |
| CN104466419A (en) * | 2013-09-17 | 2015-03-25 | 深圳光启创新技术有限公司 | Metamaterial and antenna |
| CN110943303A (en) * | 2019-10-29 | 2020-03-31 | Oppo广东移动通信有限公司 | Array lens, lens antenna, and electronic apparatus |
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