CN102904051A - Base station antenna - Google Patents
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- CN102904051A CN102904051A CN2011102163391A CN201110216339A CN102904051A CN 102904051 A CN102904051 A CN 102904051A CN 2011102163391 A CN2011102163391 A CN 2011102163391A CN 201110216339 A CN201110216339 A CN 201110216339A CN 102904051 A CN102904051 A CN 102904051A
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Abstract
The invention relates to a base station antenna. The base station antenna comprises an antenna module with a plurality of arrayed oscillators and a metamaterial module corresponding to the oscillators. The metamaterial module comprises at least one metamaterial lamella. Each metamaterial lamella is formed by arraying a plurality of metamaterial units. Each metamaterial unit is provided with pores. An area of each metamaterial lamella, facing to each oscillator, forms a refractive index distribution area. The pores are arrayed on the metamaterial units of a plurality of concentric circles located in each refractive index area by centering on the position facing to the center of the corresponding oscillator, so that a plurality of refractive index circles centering on the position facing to the center of the corresponding oscillator are formed. Points on each refractive index circle in each refractive index distribution area are equal in refractive index. With increase of the diameter of the refractive index circles, the refractive index of each refractive index circle decreases and decrement increases. Therefore, half-power bandwidth of the base station antenna diminishes, directionality and gain are increased, and electromagnetic wave can propagate farther.
Description
Technical field
The present invention relates to the electromagnetic communication field, more particularly, relate to a kind of antenna for base station.
Background technology
Antenna for base station is the visual plant that guarantees mobile communication terminal realization wireless access.Along with the development of mobile communications network, the distribution of base station is more and more intensive, and the directivity of antenna for base station is had higher requirement, and to avoid the phase mutual interference, allows the farther of Electromagnetic Wave Propagation.
Generally, we represent the directivity of antenna for base station with half-power angle.In the power radiation pattern, in a certain plane that comprises main lobe greatest irradiation direction, the angle that relative greatest irradiation direction power flux-density is dropped between 2 of half place (or less than maximum 3dB) calls half-power angle.In the field strength pattern, in a certain plane that comprises main lobe greatest irradiation direction, relative greatest irradiation direction field intensity is dropped to 0.707 times of angle of locating be also referred to as half-power angle.Half-power angle also claims half-power bandwidth.Half-power bandwidth comprises horizontal plane half-power bandwidth and vertical plane half-power bandwidth.And the electromagnetic wave propagation of antenna for base station distance is determined by the vertical plane half-power bandwidth.The vertical plane half-power bandwidth is less, and the gain of antenna for base station is larger, good directionality, and the electromagnetic wave propagation distance is just far away, on the contrary the gain of antenna for base station is just less, and directivity is poor, and the electromagnetic wave propagation distance is also just nearer.
Summary of the invention
The technical problem to be solved in the present invention is, provides that a kind of half-power bandwidth is little, the antenna for base station of good directionality.
The technical solution adopted for the present invention to solve the technical problems is: a kind of antenna for base station, comprise the super material module that Anneta module with a plurality of oscillators that are arranged in array and corresponding these oscillators arrange, described super material module comprises at least one super sheet of material, each super sheet of material is arranged by a plurality of super material cell and is formed, and is formed with aperture on each super material cell; Each super sheet of material forms a refraction index profile district over against the zone of each oscillator, allow described aperture be arranged in to be positioned at each refraction index profile district take over against the position at the center of each oscillator on a plurality of concentrically ringed super material cell in the center of circle, in order to form take over against the position at the center of corresponding oscillator as a plurality of refractive indexes circles in the center of circle, the refractive index of the upper each point of same refractive index circle in each refraction index profile district is identical, along with the increase of refractive index diameter of a circle, the refractive index of each refractive index circle reduces and decrease increases.
Preferably, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of deep equality, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the diameter that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the diameter that is arranged in the aperture on each concentrically ringed super material cell increases.
Preferably, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of deep equality, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the diameter that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the diameter that is arranged in the aperture on each concentrically ringed super material cell reduces.
Preferably, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of equal diameters, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the degree of depth that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the degree of depth that is arranged in the aperture on each concentrically ringed super material cell increases.
Preferably, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of equal diameters, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the degree of depth that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the degree of depth that is arranged in the aperture on each concentrically ringed super material cell reduces.
Preferably, form the above aperture on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the quantity that is arranged in the aperture on same concentrically ringed each super material cell is identical, along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture on each concentrically ringed super material cell increases.
Preferably, form the above aperture on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the quantity that is arranged in the aperture on same concentrically ringed each super material cell is identical, along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture on each concentrically ringed super material cell reduces.
What preferably, fill in the described aperture is air.
Preferably, form the identical described aperture of number on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, the refractive index that is arranged in the medium of filling in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the refractive index that is arranged in the medium of filling in the aperture on each concentrically ringed super material cell reduces.
Preferably, the corresponding same oscillator of the super sheet of material of each of described super material module forms identical refraction index profile district, and the refractive index of the refractive index circle that the diameter of corresponding same oscillator is identical on each super sheet of material is all identical.
Antenna for base station of the present invention has following beneficial effect: form a plurality of apertures by the super sheet of material at described super material module, and allow arranging of described aperture satisfy certain rule, in order in the refraction index profile district of each oscillator, forming a plurality of refractive index circles with regularity of distribution that refractive index reduces and decrease increases, thereby change the electromagnetic wave propagation path when making the electromagnetic wave of being launched by oscillator pass described super material module, reduced the half-power bandwidth of antenna for base station, improved its directivity and gain, allowed the farther of Electromagnetic Wave Propagation.
Description of drawings
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the structural representation of antenna for base station of the present invention;
Fig. 2 is the front enlarged drawing of the Anneta module among Fig. 1;
Fig. 3 is the front enlarged drawing of a super sheet of material of the super material module among Fig. 1;
Fig. 4 is first schematic diagram of arranging of the aperture in the refraction index profile district of a corresponding oscillator;
Fig. 5 is that the refractive index in the refraction index profile district of a corresponding oscillator is justified distribution schematic diagram;
Fig. 6 is second schematic diagram of arranging of the aperture in the refraction index profile district of a corresponding oscillator;
Fig. 7 is the 3rd schematic diagram of arranging of the aperture in the refraction index profile district of a corresponding oscillator;
Fig. 8 is that the super material piece module of the corresponding oscillator of the present invention is to the electromagnetic schematic diagram that converges.
The name that each label is corresponding among the figure is called:
10 antenna for base station, 12 Anneta modules, 14 base plates, 16 oscillators, 20 surpass material module, 22 surpass sheet of material, 222 substrates, 223 surpass material cell, 224 apertures, 24 refractive indexes circle, 26 refraction index profile districts
Embodiment
The invention provides a kind of antenna for base station, one surpass material module half-power bandwidth is diminished by arranging at the emission of the electromagnetic wave of antenna or receive direction, to improve its directivity and gain.
We know, electromagnetic wave can reflect when spreading into another uniform dielectric by a kind of uniform dielectric, and this is different the causing of refractive index owing to two media.And for non-uniform dielectric, electromagnetic wave also can reflect in medium inside and to the larger position deviation of refractive index.And refractive index equals
The refractive index that also is medium depends on its dielectric constant and magnetic permeability.
Super material is a kind ofly to carry out spatial arrangement, have the artificial composite material of special electromagnetic response take artificial micro-structural as elementary cell and with ad hoc fashion, people often utilize the topology of artificial micro-structural and dielectric constant and the magnetic permeability that physical dimension changes each point in the space, as seen, we can utilize the topology of artificial micro-structural and/or dielectric constant and the magnetic permeability that physical dimension is modulated the space each point, thereby the refractive index of space each point is changed with certain rule, with the control electromagnetic wave propagation, and be applied to have the occasion that special electromagnetic responds demand.
As depicted in figs. 1 and 2, described antenna for base station 10 comprises Anneta module 12 and super material module 20, and described Anneta module 12 comprises that base plate 14 and array arrangement are in the oscillator 16 of described base plate 14.Be 4 * 9 arrays of per two row's adjacent vibration generators 16 interlaced arrangements shown in the figure, in other embodiment, can arrange in any way for any amount of oscillator 16, arrange such as matrix.Described super material module 20 comprises a plurality of edges perpendicular to the super sheet of material 22 that the direction of sheet surfaces (also being electromagnetic wave emission or the receive direction of antenna for base station) is formed by stacking, and is the in twos situations that bond together mutually of direct forward and backward surface each other of 3 super sheet of material 22 shown in the figure.During implementation, the number of described super sheet of material 22 can increase and decrease according to demand, and each super sheet of material 22 also can be arranged equally spacedly and be fitted together, and can impedance matching layer be set in described super material module 20 both sides, to reduce reflection of electromagnetic wave.Because the refraction index profile rule of each super sheet of material 22 is all identical, describe as example therefore only choose below a super sheet of material 22.
As shown in Figure 3 and Figure 4, each super sheet of material 22 comprises substrate 222 and a plurality of apertures 224 that are formed on the described substrate 222.Described substrate 222 can be made by the high molecular polymers such as polytetrafluoroethylene or ceramic material.Described aperture 224 can the suitable technique of different corresponding employings be formed on the described substrate 222 according to the material of described substrate 222.For example when described substrate 222 is made by high molecular polymer, can form described aperture 224 at described substrate 222 by techniques such as drilling machine boring, punch forming or injection mo(u)ldings, form described aperture 224 by techniques such as drilling machine boring, punch forming or high temperature sinterings at described substrate 222 and make Shi Zeke when described substrate 222 by ceramic material.
Generally, we with the substrate 222 part people at each aperture 224 and place thereof for being defined as a super material cell 223, and the size of each super material cell 223 should be less than 1/5th of the electromagnetic wavelength of required response, be preferably 1/10th, so that 22 pairs of electromagnetic waves of described super sheet of material produce continuous response.This shows, described aperture 224 is very small, thus in Fig. 3 with point of its approximate paintings.
The electromagnetic wave of launching from each oscillator 16 can be similar to sees spherical wave as, and wants long-distance communications, need to change it into plane wave.That is to say, described super material module 20 will converge the electromagnetic wave of spherical wave form and change into the electromagnetic wave of plane wave form.Therefore, the refraction index profile of described super sheet of material 22 space each points should satisfy following rule: form a plurality of concentric refractive indexes circles 24 as the center of circle take the position over against the center of each oscillator 16, the refractive index of each point is identical on the same refractive index circle 24, and along with the increase of the diameter of refractive index circle 24, the refractive index of each refractive index circle 24 reduces and decrease increases.Thereby corresponding each oscillator 16 forms a refraction index profile district 26 by corresponding refractive index circle 24 on described super sheet of material 22, as being delimited by a dashed line the zone of formation among Fig. 3.The refractive index of supposing the refractive index circle 24 that each diameters increase in the refraction index profile district 26 of a corresponding oscillator 16 is n
1, n
2, n
3... n
p, n is then arranged
1＞n
2＞n
3＞...＞n
p, and (n
P-1-n
p)＞...＞(n
2-n
3)＞(n
1-n
2), q is the natural number greater than 0.Represent refractive index circle 24 with concentric circles, and represent the variable quantity of the refractive index of adjacent refractive index circle 24 with the size of the spacing between the neighboring concentric circle, then the variations in refractive index rule of each refractive index circle 24 in the refraction index profile district 26 of a corresponding oscillator 16 is as shown in Figure 5.
By experiment as can be known, when identical and its refractive index is less than the refractive index of described base material 222 when the medium of the aperture 224 interior fillings on each super material cell 223, the volume that described aperture 224 accounts for whole super material cell 223 is larger, and the refractive index of described super material cell 223 is less; When identical and its refractive index was greater than the refractive index of described base material 222 when the medium of the aperture 224 interior fillings on each super material cell 223, the volume that described aperture 224 accounts for whole super material cell 223 was larger, and the refractive index of described super material cell 223 is larger; When the volume that accounts for whole super material cell 223 when described aperture 224 was identical, the refractive index of the different medium of described aperture 224 interior fillings was directly proportional with the refractive index of described super material cell 223.Described aperture 224 accounts for the volume of whole super material cell 223 and can realize by forming the different aperture 224 of physical dimension in described super material cell 223, also can realize by forming a plurality of measure-alike apertures 224 in described super material cell 223.The below describes one by one.
As shown in Figure 4, be the schematic diagram of arranging of the aperture 224 in the refraction index profile district 26 of a corresponding oscillator 16.The principle that changes the Electromagnetic Wave Propagation path by super material as can be known, we can be on described super sheet of material 22 form a plurality of concentric circless take the position over against the center of each oscillator 16 as the center of circle, thereby allow each super material cell 223 be arranged on these concentric circless.Make the degree of depth that is arranged in the aperture 224 on same concentrically ringed each super material cell 223 all identical with diameter, and along with the increase of concentrically ringed diameter, the degree of depth that is arranged in the aperture 224 on each concentrically ringed super material cell 223 is constant and diameter increases.Can on described super sheet of material 22, form described refraction index profile district 26 by these concentric circless.Because the aperture 224 on the different-diameter concentric circles has characterized different dielectric constants and magnetic permeability together from the appropriate section of described substrate 222, thereby form a plurality of refractive indexes circles 24 with regularity of distribution that refractive index reduces and decrease increases of corresponding each oscillator 16 in described super sheet of material 22.By as can be known front, each super sheet of material 22 can be regarded as to be arranged by a plurality of super material cell 223 and forms, and the size of each super material cell 223 is generally very small, can be similar to regard a point as, and then circle just can be regarded as by a plurality of super material cell 223 and forms along circumference is stacking.Therefore in Fig. 4, described aperture 224 array arrangements can be similar to regard as along concentric circles arranges.
In other embodiment, also can allow described aperture 224 with same diameter be arranged in take over against the position at the center of each oscillator 16 on a plurality of concentric circless in the center of circle, increase along with concentrically ringed diameter, only modulate its dielectric constant and magnetic permeability by the degree of depth of adjusting described aperture 224, allow have different refractive indexes on the concentric circles of different-diameter, thereby form a plurality of refractive indexes circles 24 with regularity of distribution that refractive index reduces and decrease increases.
In addition, we also can be at the identical circular hole of above physical dimension of super material cell 223 interior formation (being diameter all equates with the degree of depth), by its refractive index of how much adjusting of the circular hole offered on each super material cell 223, as shown in Figure 6.The distributed number rule of the aperture 224 on each the super material cell 223 on the described super sheet of material 22 in the refraction index profile district 26 of corresponding each oscillator 16 is: allow described aperture 224 be arranged in to be positioned at described refraction index profile district 26 take over against the center of corresponding oscillator 16 on a plurality of concentrically ringed super material cell 223 in the center of circle, the quantity that is arranged in the aperture 224 on same concentrically ringed each super material cell 223 is identical, along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture 224 on each concentrically ringed super material cell 223 increases.A plurality of refractive index circles 24 that like this, also can have in the refraction index profile district 26 interior formation over against corresponding oscillator 16 regularity of distribution that refractive index reduces and decrease increases.Owing to forming the circular hole that above physical dimension is identical on each super material cell 223, can be reduced at like this technique that forms described aperture 224 on the described base material 222.
Among above-described several embodiment, described aperture 224 interior fillings all are air, its refractive index is certainly less than the refractive index of described substrate 222.In fact, also can be at the medium of described aperture 224 interior filling refractive indexes greater than the refractive index of described substrate 222, as for situation shown in Figure 6, the distributed number rule of the aperture 224 on each the super material cell 223 on the described super sheet of material 22 in the refraction index profile district 26 of corresponding each oscillator 16 is: allow described aperture 224 be arranged in to be positioned at described refraction index profile district 26 take over against the center of corresponding oscillator 16 on a plurality of concentrically ringed super material cell 223 in the center of circle, the quantity that is arranged in the aperture 224 on same concentrically ringed each super material cell 223 is identical, along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture 224 on each concentrically ringed super material cell 223 reduces.
As shown in Figure 7, be the filling schematic diagram of the medium of each identical aperture 224 interior filling different refractivities of the physical dimension in the refraction index profile district 26 that is distributed on the described super sheet of material 22 a corresponding oscillator 16.Therefore have, the medium of different refractivity in the filling rule of described aperture 224 is: a plurality of concentrically ringed super material cell 223 that forms as the center of circle take the position over against the center of the oscillator 16 all identical apertures 224 of physical dimension of arranging, the refractive index of medium that is arranged in the aperture 224 interior fillings on same concentrically ringed each super material cell 223 is identical, along with the increase of concentrically ringed diameter, the refractive index that is arranged in the medium of the aperture 224 interior fillings on each concentrically ringed super material cell 223 reduces.If represent the size of the refractive index of the medium of filling in the described aperture 224 with hatched density, then the dielectric distribution of the different refractivity of each apertures 224 fillings in the refraction index profile district 26 of a corresponding oscillator 16 as described in Figure 7.Among Fig. 7, only form a described aperture 224 on each super material cell 223.In other execution mode, can form several identical or not identical described apertures 244 in each super material cell 223, all equate as long as guarantee the volume of the aperture 224 on each super material cell 223.
Then a plurality of described super sheet of material 22 are superimposed, allow corresponding same oscillator 16 forms identical refraction index profile district 26 on each described super sheet of material 22, and the refractive index of the refractive index that the diameter of corresponding same oscillator 16 is identical on each described super sheet of material 22 circle 24 is all identical.
Each super sheet of material 22 converges it and changes the schematic diagram that the electromagnetic wave of plane wave form penetrates into when as shown in Figure 8, passing the super material module 20 of the corresponding oscillator 16 of the present invention for the electromagnetic wave of spherical wave form.As seen, have the aperture 224 of certain rule of arranging or modulate dielectric constant and the magnetic permeability of each super material cell 223 at the identical or different medium of aperture 224 interior fillings by each super sheet of material 22 formation at described super material module 20, and then form in described super sheet of material 22 and to have that refractive index reduces and the refractive index of the regularity of distribution that decrease increases circle 24, make electromagnetic wave to specific direction deviation, thereby allow the electromagnetic wave of spherical wave form converge and change into the electromagnetic wave of plane wave form, the half-power bandwidth that has reduced antenna for base station diminishes, improved its directivity and gain, allowed the farther of Electromagnetic Wave Propagation.
The above only is a plurality of embodiment of the present invention and/or embodiment, should not be construed as limiting the invention.For those skilled in the art, under the prerequisite that does not break away from basic thought of the present invention, can also make a plurality of improvements and modifications, and these improvements and modifications also should be considered as protection scope of the present invention.Such as, the mode described in above-described embodiment can severally combine use, also can obtain the required refraction index profile rule of described super sheet of material 22.Described aperture 224 also can be the hole of any shape.
Claims (10)
1. antenna for base station, it is characterized in that, comprise the super material module that Anneta module with a plurality of oscillators that are arranged in array and corresponding these oscillators arrange, described super material module comprises at least one super sheet of material, each super sheet of material is arranged by a plurality of super material cell and is formed, and is formed with aperture on each super material cell; Each super sheet of material forms a refraction index profile district over against the zone of each oscillator, allow described aperture be arranged in to be positioned at each refraction index profile district take over against the position at the center of each oscillator on a plurality of concentrically ringed super material cell in the center of circle, in order to form take over against the position at the center of corresponding oscillator as a plurality of refractive indexes circles in the center of circle, the refractive index of the upper each point of same refractive index circle in each refraction index profile district is identical, along with the increase of refractive index diameter of a circle, the refractive index of each refractive index circle reduces and decrease increases.
2. antenna for base station according to claim 1, it is characterized in that, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of deep equality, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the diameter that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the diameter that is arranged in the aperture on each concentrically ringed super material cell increases.
3. antenna for base station according to claim 1, it is characterized in that, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of deep equality, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the diameter that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the diameter that is arranged in the aperture on each concentrically ringed super material cell reduces.
4. antenna for base station according to claim 1, it is characterized in that, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of equal diameters, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the degree of depth that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the degree of depth that is arranged in the aperture on each concentrically ringed super material cell increases.
5. antenna for base station according to claim 1, it is characterized in that, form a described aperture on each super material cell, and the aperture on each super material cell is the circular hole of equal diameters, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the degree of depth that is arranged in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the degree of depth that is arranged in the aperture on each concentrically ringed super material cell reduces.
6. antenna for base station according to claim 1, it is characterized in that, form the above aperture on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, when the refractive index of the medium of filling in the described aperture during less than the refractive index of described substrate, the quantity that is arranged in the aperture on same concentrically ringed each super material cell is identical, and along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture on each concentrically ringed super material cell increases.
7. antenna for base station according to claim 1, it is characterized in that, form the above aperture on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, when the refractive index of the medium of filling in the described aperture during greater than the refractive index of described substrate, the quantity that is arranged in the aperture on same concentrically ringed each super material cell is identical, and along with the increase of concentrically ringed diameter, the quantity that is arranged in the aperture on each concentrically ringed super material cell reduces.
8. according to claim 2,4 or 6 described antenna for base station, it is characterized in that, what fill in the described aperture is air.
9. antenna for base station according to claim 1, it is characterized in that, form the identical described aperture of number on each super material cell, and the aperture on each super material cell is the identical circular hole of physical dimension, the refractive index that is arranged in the medium of filling in the aperture on same concentrically ringed each the super material cell in each refraction index profile district is identical, along with the increase of concentrically ringed diameter, the refractive index that is arranged in the medium of filling in the aperture on each concentrically ringed super material cell reduces.
10. antenna for base station according to claim 1, it is characterized in that, the corresponding same oscillator of the super sheet of material of each of described super material module forms identical refraction index profile district, and the refractive index of the refractive index circle that the diameter of corresponding same oscillator is identical on each super sheet of material is all identical.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216339.1A CN102904051B (en) | 2011-07-29 | 2011-07-29 | Base station antenna |
| PCT/CN2011/084632 WO2013016938A1 (en) | 2011-07-29 | 2011-12-26 | Base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216339.1A CN102904051B (en) | 2011-07-29 | 2011-07-29 | Base station antenna |
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| Publication Number | Publication Date |
|---|---|
| CN102904051A true CN102904051A (en) | 2013-01-30 |
| CN102904051B CN102904051B (en) | 2015-04-22 |
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|---|---|---|---|
| CN201110216339.1A Active CN102904051B (en) | 2011-07-29 | 2011-07-29 | Base station antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636004A (en) * | 2019-10-09 | 2021-04-09 | 安徽工业大学 | Metamaterial focusing antenna for measuring space-time evolution of streamer electron density |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001085936A (en) * | 1999-09-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | High frequency substrate, dielectric lens antenna and its manufacture |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| US20110069377A1 (en) * | 2009-09-18 | 2011-03-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Planar gradient index optical metamaterials |
| JP2011112942A (en) * | 2009-11-27 | 2011-06-09 | Toyota Central R&D Labs Inc | Optical deflection element |
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2011
- 2011-07-29 CN CN201110216339.1A patent/CN102904051B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001085936A (en) * | 1999-09-09 | 2001-03-30 | Matsushita Electric Ind Co Ltd | High frequency substrate, dielectric lens antenna and its manufacture |
| US20110069377A1 (en) * | 2009-09-18 | 2011-03-24 | Toyota Motor Engineering & Manufacturing North America, Inc. | Planar gradient index optical metamaterials |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| JP2011112942A (en) * | 2009-11-27 | 2011-06-09 | Toyota Central R&D Labs Inc | Optical deflection element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636004A (en) * | 2019-10-09 | 2021-04-09 | 安徽工业大学 | Metamaterial focusing antenna for measuring space-time evolution of streamer electron density |
| CN112636004B (en) * | 2019-10-09 | 2022-09-13 | 安徽工业大学 | Metamaterial focusing antenna for measuring space-time evolution of streamer electron density |
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| CN102904051B (en) | 2015-04-22 |
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