CN203589218U - Antenna - Google Patents
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- CN203589218U CN203589218U CN201320761985.0U CN201320761985U CN203589218U CN 203589218 U CN203589218 U CN 203589218U CN 201320761985 U CN201320761985 U CN 201320761985U CN 203589218 U CN203589218 U CN 203589218U
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- 230000006698 induction Effects 0.000 description 10
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- 230000005611 electricity Effects 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 2
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- 238000005388 cross polarization Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
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Abstract
The utility model provides an antenna. The antenna includes a reflection plate (10) and a radiation unit (20) which is arranged at one side of the reflection plate (10); the antenna also comprises at least one metamaterial plate (30); the metamaterial plate (30) comprises a substrate (31) and at least one a periodic frequency selection surface which is arranged on the substrate (31); the metamaterial plate (30) and the radiation unit (20) are arranged at a same side of the reflection plate (10);, and the distance between the metamaterial plate (30) and the reflection plate (20) is greater than the distance between the radiation unit (20) and the reflection plate (10). According to the antenna of the utility model, since the metamaterial plate is added and the metamaterial plate is provided with the periodic frequency selection surface, the antenna can effectively modulate the electromagnetic wave; so, the quite narrow reflection plate is used so as to realize the miniaturization of the antenna.
Description
Technical field
The utility model relates to wireless technical field, more specifically, relates to a kind of antenna.
Background technology
Antenna for base station is the important composition parts of Modern Mobile Communications Systems, is used to receive and propagation of electromagnetic waves.The fast development of present mobile communication business, has proposed more and more higher requirement to the indices of antenna for base station, especially shows that yield value, bandwidth characteristic, cross polarization characteristics, main lobe width are with aspects such as the fluctuation of frequency, front and back specific characteristics.
In the prior art, for making antenna obtain directed required lobe width, for example 65 degree, 90 degree etc., to meet basic network coverage requirement, general employing adjusted radiating element or by increasing the means such as reflecting plate width.The reflecting plate cross sectional shape of known base station antenna plays an important role for front and back specific characteristic and horizontal radiation pattern.When the front and back of directional antenna ratio reaches certain index, can obviously suppress the co-channel interference backward from antenna, thereby improve capacity of communication system.In order to improve front and back than index, constriction horizontal plane beamwidth, a kind of way is the width that continues to increase metallic reflection plate, reduces the electromagnetic backward diffraction that radiating element radiates, and strengthens the forward radiation of antenna.When reflecting plate is size-constrained, be ratio before and after improving, prior art generally can be well-designed to reflecting plate shape, as patent CN2760786Y, CN101826658A, CN102790284A; For constriction horizontal plane beamwidth, prior art increases parasitic dricetor element above radiating element, as patent CN102804495A, CN202474199U.
For reducing addressing and the difficulty of building a station of mobile communication website, the miniaturization of antenna is a kind of inexorable trend.But when indices is had relatively high expectations, conventional Antenna Design means of the prior art are still difficult to realize the miniaturization of antenna.
Utility model content
The utility model object is to provide a kind of antenna of miniaturization.
The utility model provides a kind of antenna, comprise reflecting plate and the radiating element that is arranged at reflecting plate one side, antenna also comprises at least one super plate of material, super plate of material comprises substrate and is arranged at least one period frequency selection surface on substrate, super plate of material and radiating element are positioned at the same side of reflecting plate, and the distance between super plate of material and reflecting plate is greater than the distance between radiating element and reflecting plate.
Further, each period frequency option table face comprises multiple conduction geometries.
Further, at least one period frequency selects surperficial at least a portion conduction geometry and this period frequency to select structure, size and/or the arrangement mode of remaining conduction geometry of surface different; Or at least one period frequency selects surperficial conduction geometry and all the other period frequencies to select structure, size and/or the arrangement mode of surperficial conduction geometry different.
Further, to be projected in the same plane that is parallel to substrate be Rotational Symmetry or axisymmetric to conduction geometry.
Further, conduction geometry comprises two bathtub constructions and the connecting line that is connected two bathtub constructions of opposing setting; Each bathtub construction comprises a foundation line and two branch lines, and an end of every branch line is vertically connected at an end of baseline; The baseline of two bathtub constructions be arranged in parallel, and the branch line of each bathtub construction all extends towards the direction away from another bathtub construction, and the two ends of connecting line are vertically connected in respectively the mid point of two foundation lines of two bathtub constructions.
Further, super plate of material comprise period 1 frequency-selective surfaces and second round frequency-selective surfaces, period 1 frequency-selective surfaces and second round frequency-selective surfaces be arranged at respectively on the close radiating element of substrate and two surfaces away from radiating element.
Further, be positioned at the conduction geometry and the conduction geometry corresponding setting one by one that is positioned at frequency-selective surfaces second round of period 1 frequency-selective surfaces.
Further, the each conduction geometry that is positioned at frequency-selective surfaces second round is with respect to the conduction geometry that be positioned at period 1 frequency-selective surfaces on the plane at second round frequency-selective surfaces place half-twist and the center-aligned corresponding with it.
Further, the multiple conduction geometries that are positioned at the same period frequency-selective surfaces on substrate are so arranged: the surface of the substrate at multiple conduction geometries place is divided into multiple rectangles with many imaginary lines, wherein, the inner correspondence of each rectangle arranges a conduction geometry, and the center superposition of the center of each conduction geometry and corresponding rectangle.
Further, it is upper that the exterior contour of conduction geometry is positioned at a square, and foursquare every limit is parallel with part imaginary line.
Further, conduction geometry is printed on substrate; Or conduction geometry is sprayed on substrate; Or conduction geometry is plated on substrate.
Further, substrate comprises at least one laminate body, and at least one laminate body comprises dielectric-slab, cystosepiment and/or cellular board.
Further, frequency-selective surfaces in super plate of material, radiating element and reflecting plate form resonant cavity, and the resonance frequency of resonant cavity is lower than the low-limit frequency of designated frequency band in the working frequency range of antenna, and higher than 90% of low-limit frequency.
Further, the base plate that reflecting plate comprises rectangle be positioned at the Width of base plate on two blocks of outer side plates at relative two ends, outer side plate extends towards the direction of super plate of material from base plate.
Further, reflecting plate also comprises two ends relative on the Width that is positioned at base plate and lays respectively at the internal layer side plates of two outer side plate inner sides, and internal layer side plate is the direction extension towards super plate of material from base plate.
Further, internal layer side plate is with respect to 15 degree to 30 degree that tilt toward the outer side of the direction perpendicular to base plate.
Further, the width of internal layer side plate is 100mm to 150mm.
Further, antenna comprises multiple radiating elements, and multiple radiating elements are arranged in a linear, and reflecting plate also comprises the dividing plate of separating each radiating element, and dividing plate is between two blocks of internal layer side plates, and dividing plate extends towards the direction of super plate of material from base plate.
Further, in the main radiation direction of antenna, be provided with at least two-layer super plate of material.
Further, radiating element is dipole or chip unit.
According to antenna of the present utility model, because loading super plate of material, in super plate of material, there is period frequency and select surface, can play effective modulating action to electromagnetic wave, therefore, adopt narrower reflecting plate, can realize the miniaturization of antenna.Period frequency option table face comprises conduction geometry, conduction geometry can produce induced current, and inspire induction field, induction field and the stack of primary radiation field produce new field distribution, by size and the spacing of conduction geometry are set, can make induction field and primary radiation field produce with superimposed, thereby improve the directivity of antenna, the main lobe beamwidth of constriction antenna, realizes higher antenna performance index.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.
Fig. 1 is according to the perspective view of the antenna of the utility model preferred embodiment;
Fig. 2 is the sectional view of the corresponding antenna of Fig. 1;
Fig. 3 is the structural representation of the conduction geometry of super plate of material in the corresponding antenna of Fig. 1;
Fig. 4 is the horizontal directivity pattern simulation result of the corresponding antenna of Fig. 1 at 1880MHz;
Fig. 5 is the horizontal directivity pattern simulation result of the corresponding antenna of Fig. 1 at 2025MHz.
Reference numeral: 10, reflecting plate; 11, base plate; 12, side plate; 13, dividing plate; 14, internal layer side plate; 20, radiating element; 30, super plate of material; 31, substrate; 32, conduction geometry; 321, bathtub construction; 322, connecting line; 321A, baseline; 321B, branch line.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Fig. 1 is according to the perspective view of the antenna of the utility model preferred embodiment.Fig. 2 is the sectional view of the corresponding antenna of Fig. 1.As depicted in figs. 1 and 2, the antenna of the utility model embodiment comprises reflecting plate 10 and is arranged at the radiating element 20 of reflecting plate 10 1 sides, also comprise super plate of material 30, super plate of material 30 comprises substrate 31 and is arranged on the period frequency selection surface on substrate 31, super plate of material 30 and radiating element 20 are positioned at the same side of reflecting plate 10, and the distance between super plate of material 30 and reflecting plate 10 is greater than the distance between radiating element 20 and reflecting plate 10.As depicted in figs. 1 and 2, radiating element 20 is positioned at the forward direction of reflecting plate 10, and super plate of material 30 is positioned at radiating element 20 front certain distances.Antenna of the present utility model uses preferably as antenna for base station.
According to antenna of the present utility model, because loading super plate of material, in super plate of material, there is period frequency and select surface, can play effective modulating action to electromagnetic wave, therefore, adopt narrower reflecting plate, can realize the miniaturization of antenna.
Super plate of material 30 can only comprise the period frequency selection surface of one side, also can comprise two-sided period frequency selection surface.
The period frequency option table face of super plate of material 30 comprises multiple conduction geometries 32.Coupling meeting between conduction geometry 32 and radiating element 20 produces specific resonance frequency, by the size of conduction geometry 32, can adjust this resonance frequency, and near this resonance frequency, directivity factor has obvious lifting.And the distance of conducting electricity between spacing between geometry 32, conduction geometry 32 and radiating element 20 by adjustment also can be finely tuned resonance frequency, the while can also be adjusted the degree of depth of reflectivity curve.Therefore, select suitable conduction geometry size and arrangement mode, can make the gain of antenna have obvious lifting, thereby narrow wave beam.
In the present embodiment, the period frequency of super plate of material 30 selects multiple conduction geometry 32 rules on surface to arrange.Through well-designed, the conduction geometry 32 of super plate of material 30 can produce induced current, and inspire induction field, induction field and the stack of primary radiation field produce new field distribution, by size and the spacing of conduction geometry are set, can make induction field and primary radiation field produce with superimposed, thereby can play effective modulating action to electromagnetic wave, the directivity that improves antenna, the main lobe beamwidth of constriction antenna, realizes higher antenna performance index.
The distance that super plate of material 30 is positioned at radiating element 20 fronts is preferably the centre frequency wavelength of 0.01 times of wavelength to 0.3 times radiated electromagnetic wave.The present embodiment is preferably 40mm.
The geometry of conduction geometry 32 can be the shapes such as I-shaped, cross, herringbone.Preferably, to be projected in the same plane that is parallel to substrate 31 be Rotational Symmetry or axisymmetric to conduction geometry 32.
Fig. 3 is the structural representation of the conduction geometry 32 of super plate of material 30 in the corresponding antenna of Fig. 1.As shown in Figure 3, in the present embodiment, conduction geometry 32 comprises the bathtub construction 321 and the connecting line 322 that is connected two bathtub constructions 321 of two opposing settings.Each bathtub construction 321 comprises a foundation line 321A and two branch line 321B.An end of every branch line 321B is vertically connected at an end of baseline 321A.The baseline of two bathtub constructions 321 be arranged in parallel, and the branch line of each bathtub construction 321 all extends towards the direction away from another bathtub construction 321, and the two ends of connecting line 322 are vertically connected in respectively the mid point of two foundation line 321A of two bathtub constructions 321.This conduction geometry 32 is axially symmetric structure.
The arrangement mode of multiple conduction geometries is rationally set, can makes induction field and primary radiation field produce the coupling effect needing.
In the present embodiment, respectively conduct electricity structure and the size of geometry all identical.But in some unshowned embodiment, preferably can be set to: at least one period frequency selects surperficial at least a portion conduction geometry and this period frequency to select structure, size and/or the arrangement mode of remaining conduction geometry of surface different; Or at least one period frequency selects surperficial conduction geometry and all the other period frequencies to select structure, size and/or the arrangement mode of surperficial conduction geometry different.Can realize by structure, size and/or the arrangement mode of selecting surface that multiple conduction geometry is set at one or more period frequencies the effect of multifrequency.
In the present embodiment, super plate of material 30 comprise the period 1 frequency-selective surfaces that is oppositely arranged and second round frequency-selective surfaces.Period 1 frequency-selective surfaces and second round frequency-selective surfaces be arranged at respectively on the close radiating element of substrate 31 and two surfaces away from radiating element.Preferably, be positioned at the conduction geometry 32 and the conduction geometry 32 corresponding setting one by one that is positioned at frequency-selective surfaces second round of period 1 frequency-selective surfaces.Further preferably, the each conduction geometry 32 that is positioned at frequency-selective surfaces second round is with respect to the conduction geometry 32 that be positioned at period 1 frequency-selective surfaces on the plane at second round frequency-selective surfaces place half-twist and the center-aligned corresponding with it.The set-up mode of conduction geometry is set dielectric-slab two-sided for conduction geometry is set at the one side of medium substrate, is conducive to for two kinds of orthogonal polarization electromagnetic wave propagations.
Further, in the present embodiment, the multiple conduction geometries 32 that are positioned at the same period frequency-selective surfaces on substrate 31 are so arranged: the surface of the substrate 31 at multiple conduction geometries 32 places is divided into multiple rectangles with many imaginary lines, wherein, the inner correspondence of each rectangle arranges a conduction geometry 32, and the center superposition of each conduction geometry 32 center and corresponding rectangle.Preferably, it is upper that the exterior contour of conduction geometry 32 is positioned at a square, and foursquare every limit is parallel with part imaginary line.
In the present embodiment, conduction geometry 32 is printed on substrate 31.In a further embodiment, conduction geometry 32 can be sprayed on substrate 31, or conduction geometry 32 also can be plated on substrate 31.
The substrate 31 of super plate of material 30 comprises at least one laminate body, and at least one laminate body comprises dielectric-slab, cystosepiment and/or cellular board.Super plate of material 30 in the present embodiment, only adopts one deck dielectric-slab as substrate 31.
Frequency-selective surfaces, radiating element 20 and reflecting plate in super plate of material 30 form a resonant cavity, and the resonance frequency of resonant cavity is a little less than the low-limit frequency of designated frequency band in the working frequency range of antenna.The frequency range of being concerned about when the designated frequency band in the utility model refers to designing antenna.Because the working frequency range of antenna is conventionally wider, for example, antenna can work between working frequency range 1710MHz to 2690MHZ, and the frequency range relative narrower that conduction geometry works, therefore, when designing antenna, need be for the corresponding conduction of a certain frequency range (or some frequency range) design geometry, for example, designated frequency band for the 1710MHz to 1880MHz in the working frequency range 1710MHz to 2690MHZ of antenna is proposed high performance design, the frequency range of this 1710MHz to 1880HHz is exactly be concerned about designated frequency band, wherein 1710MHz is the low-limit frequency in designated frequency band.Preferably, the resonance frequency of resonant cavity is lower than the low-limit frequency of designated frequency band, and higher than 90% of the low-limit frequency of this designated frequency band.Antenna is set like this and can promotes antenna gain, narrow wave beam.
In the present embodiment, the base plate 11 that reflecting plate 10 comprises rectangle be positioned at the Width of base plate 11 on two blocks of outer side plates 12 at relative two ends, outer side plate 12 extends towards the direction of super plate of material 30 from base plate 11.In the present embodiment, side plate 12 is vertical with respect to base plate 11, but in other embodiments, side plate 12 can be also off plumb with respect to base plate 11.Outer side plate 12 is set to be beneficial to the front and back ratio of raising antenna and to narrow wave beam.
Preferably, internal layer side plate 14 is with respect to 15 degree to 30 degree that tilt toward the outer side of the direction perpendicular to base plate.In addition preferably, the width of internal layer side plate 14 is 100mm to 150mm, and more preferably, the width of internal layer side plate 14 is 120mm left and right.Antenna comprises multiple radiating elements 20, and multiple radiating elements 20 are arranged in a linear, and reflecting plate 10 also comprises the dividing plate 13 of separating each radiating element 20, and dividing plate 13 is between two blocks of internal layer side plates 14, and dividing plate 13 extends towards the direction of super plate of material 30 from base plate 11.In the present embodiment, each dividing plate 13 is vertical with respect to base plate 11, but do not get rid of dividing plate 13 in other embodiments, with respect to base plate 11, is set to off plumb.Dividing plate 13 is set and can regulates the coupling between antenna element, can improve isolation and promote antenna gain.
In the present embodiment, the super plate of material 30 of one deck is only set, but, in unshowned embodiment, in the main radiation direction of antenna, can be provided with at least two-layer super plate of material.
In addition, arranging of the conduction geometry 32 in Fig. 1 is schematically, and for example, the arrangement mode of size, quantity and the array of conduction geometry unit is all schematically, should not form restriction of the present utility model.
In Fig. 1 and embodiment corresponding to Fig. 2, antenna can adopt existing radiating element, and for example, radiating element 20 can be dipole or chip unit.At this, be not described specifically.
Antenna can also comprise bracing or strutting arrangement (not shown), and bracing or strutting arrangement for example can comprise many support bars, and the two ends of every support bar are fixedly connected with reflecting plate with super plate of material respectively, thereby will surpass plate of material, is arranged on reflecting plate.
In addition, antenna can also comprise radome (not shown).Radiating element in reflecting plate and super plate of material and super plate of material is all arranged in radome.In the situation that bracing or strutting arrangement not being set, super plate of material can be fixed on radome.
Antenna of the present utility model, because loading super plate of material, therefore, adopts narrower reflecting plate, can realize higher antenna performance index, realizes the miniaturization of antenna.The resonance characteristic of super plate of material utilization conduction geometry, and induced current is coupled between radiating element, produce secondary radiation, and cause the electromagnetic wave of aerial radiation partly between super plate of material and reflecting plate, super plate of material and super plate of material, to form multiple reflections, form Fabry-Perot resonant cavity with reflecting plate, can obviously promote the directivity of antenna, thus the main lobe beamwidth of constriction antenna.By adjusting, in the height of super plate of material and super plate of material, conduct electricity size and the spacing of geometry, bandwidth, standing-wave ratio, isolation or the cross polarization that can obviously improve antenna than and front and back the index such as compare.
The structure of change reflecting plate and size also can change the performance of antenna.Can be by experiment or emulation determine the spacing between best reflecting plate size and inside and outside two-layer side plate.
The reflecting plate 10 of above embodiment adopts the double-deck side plate arrangement form with outer side plate and internal layer side plate, and internal layer side plate and baseplate vertical direction inclination 15～30 degree, the width 120mm of reflecting plate 10.Through analogue test, prove, the in the situation that of super plate of material not being set adopting this reflecting plate 10, can make antenna front and back in the frequency range of 1880MHz～2025MHz than reaching 28dB, after being provided with super plate of material 30, can make the front and back of antenna than more than being further increased to 31dB.
Fig. 4 is the horizontal directivity pattern simulation result of the corresponding antenna of Fig. 1 at 1880MHz.In Fig. 4, Phi is 45 degree, and frequency is 1880MHz, and main lobe width is 14.1dB, and main lobe direction is 1.0 degree, and angular width is 67.1 degree, and sidelobe level is-32.6dB.As can be known from Fig. 4, when frequency is 1880MHz, the front and back ratio of the antenna of the present embodiment is greater than 31dB.
Fig. 5 is the horizontal directivity pattern simulation result of the corresponding antenna of Fig. 1 at 2025MHz.In Fig. 5, Phi is 45 degree, and frequency is 2025MHz, and main lobe width is 14.7dB, and main lobe direction is 0.0 degree, and angular width is 62.2 degree, and sidelobe level is-31.2dB.As can be known from Fig. 5, when frequency is 2025MHz, the front and back ratio of the antenna of the present embodiment is greater than 31dB.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Because loading super plate of material, in super plate of material, there is period frequency and select surface, can play effective modulating action to electromagnetic wave, therefore, adopt narrower reflecting plate, can realize the miniaturization of antenna.
The conduction geometry that super plate of material comprises produces induced current, and inspire induction field, induction field and the stack of primary radiation field produce new field distribution, by size and the spacing of conduction geometry are set, can make induction field and primary radiation field produce with superimposed, thereby the directivity that improves antenna, the main lobe beamwidth of constriction antenna, realizes higher antenna performance index.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (20)
1. an antenna, comprise reflecting plate (10) and be arranged at the radiating element (20) of described reflecting plate (10) one sides, it is characterized in that, described antenna also comprises at least one super plate of material (30), described super plate of material (30) comprises substrate (31) and is arranged at least one period frequency selection surface on described substrate (31), described super plate of material (30) and described radiating element (20) are positioned at the same side of described reflecting plate (10), and the distance between described super plate of material (30) and described reflecting plate (10) is greater than the distance between described radiating element (20) and described reflecting plate (10).
2. antenna according to claim 1, is characterized in that, each described period frequency option table face comprises multiple conduction geometries (32).
3. antenna according to claim 2, is characterized in that,
Described at least one, period frequency selects surperficial at least a portion conduction geometry and this period frequency to select structure, size and/or the arrangement mode of remaining conduction geometry of surface different; Or,
Described at least one, period frequency selects surperficial conduction geometry and period frequency described in all the other to select structure, size and/or the arrangement mode of surperficial conduction geometry different.
4. antenna according to claim 3, is characterized in that, it is Rotational Symmetry or axisymmetric that described conduction geometry (32) is projected in the same plane that is parallel to described substrate (31).
5. antenna according to claim 3, is characterized in that, described conduction geometry (32) comprises two bathtub constructions (321) and the connecting line (322) that is connected described two bathtub constructions (321) of opposing setting; Each described bathtub construction (321) comprises a foundation line (321A) and two branch lines (321B), and an end of every described branch line (321B) is vertically connected at an end of described baseline (321A); The baseline of described two bathtub constructions (321) be arranged in parallel, the described branch line of each bathtub construction (321) all extends towards the direction away from another bathtub construction (321), and the two ends of described connecting line (322) are vertically connected in respectively the mid point of two foundation lines (321A) of described two bathtub constructions (321).
6. antenna according to claim 3, it is characterized in that, described super plate of material (30) comprise period 1 frequency-selective surfaces and second round frequency-selective surfaces, described period 1 frequency-selective surfaces and described second round frequency-selective surfaces be arranged at respectively on the close described radiating element of described substrate (31) and two surfaces away from described radiating element.
7. antenna according to claim 6, is characterized in that, the conduction geometry (32) that is positioned at described period 1 frequency-selective surfaces and conduction geometry (32) the corresponding setting one by one that is positioned at described second round of frequency-selective surfaces.
8. antenna according to claim 7, it is characterized in that, be positioned at the each described conduction geometry (32) of described second round of frequency-selective surfaces with respect to the described conduction geometry (32) that be positioned at described period 1 frequency-selective surfaces on the plane at described second round frequency-selective surfaces place half-twist and the center-aligned corresponding with it.
9. antenna according to claim 3, it is characterized in that, the described multiple conduction geometries (32) that are positioned at the same period frequency-selective surfaces on described substrate (31) are so arranged: the surface of the substrate (31) at described multiple conduction geometries (32) place is divided into multiple rectangles with many imaginary lines, wherein, the inner correspondence of each described rectangle arranges a described conduction geometry (32), and the center superposition of the center of each described conduction geometry (32) and corresponding described rectangle.
10. antenna according to claim 9, is characterized in that, it is upper that the exterior contour of described conduction geometry (32) is positioned at a square, and described foursquare every limit is parallel with the described imaginary line of part.
11. antennas according to claim 3, is characterized in that,
Described conduction geometry (32) is printed on described substrate (31); Or,
Described conduction geometry (32) is sprayed on described substrate (31); Or,
Described conduction geometry (32) is plated on described substrate (31).
12. antennas according to claim 1, is characterized in that, described substrate (31) comprises at least one laminate body, and described at least one laminate body comprises dielectric-slab, cystosepiment and/or cellular board.
13. antennas according to claim 1, it is characterized in that, described frequency-selective surfaces in described super plate of material (30), described radiating element (20) and described reflecting plate (10) form resonant cavity, the resonance frequency of described resonant cavity is lower than the low-limit frequency of designated frequency band in the working frequency range of described antenna, and higher than 90% of described low-limit frequency.
14. antennas according to claim 1, it is characterized in that, the base plate (11) that described reflecting plate (10) comprises rectangle be positioned at the Width of described base plate (11) on two blocks of outer side plates (12) at relative two ends, described outer side plate (12) extends towards the direction of described super plate of material (30) from described base plate (11).
15. antennas according to claim 14, it is characterized in that, described reflecting plate (10) also comprises two ends relative on the Width that is positioned at described base plate (11) and lays respectively at the internal layer side plate (14) of described two blocks of outer side plates (12) inner sides, and described internal layer side plate (14) extends towards the direction of described super plate of material (30) from described base plate (11).
16. antennas according to claim 15, is characterized in that, described internal layer side plate (14) is with respect to 15 degree to 30 degree that tilt toward the outer side of the direction perpendicular to described base plate.
17. antennas according to claim 15, is characterized in that, the width of described internal layer side plate (14) is 100mm to 150mm.
18. antennas according to claim 15, it is characterized in that, described antenna comprises multiple described radiating elements (20), multiple described radiating elements (20) are arranged in a linear, described reflecting plate (10) also comprises the dividing plate (13) of separating each described radiating element (20), described dividing plate (13) is positioned between described two blocks of internal layer side plates (14), and described dividing plate (13) extends towards the direction of described super plate of material (30) from described base plate (11).
19. antennas according to claim 1, is characterized in that, are provided with at least two-layer described super plate of material (30) in the main radiation direction of described antenna.
20. antennas according to claim 1, is characterized in that, described radiating element (20) is dipole or chip unit.
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| CN106876982A (en) * | 2017-02-22 | 2017-06-20 | 西安电子科技大学 | Improve the super surface of multiaerial system performance and the multiaerial system using super surface |
| CN107181050A (en) * | 2017-04-06 | 2017-09-19 | 上海交通大学 | The high-gain circular polarised array antenna of bowl-type high impedance reflector |
| CN107317102A (en) * | 2017-05-26 | 2017-11-03 | 上海无线电设备研究所 | A kind of integrated high-gain band cover antenna coupled system and its design method |
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| CN113471670A (en) * | 2021-07-02 | 2021-10-01 | 安徽大学 | 5G multi-frequency broadband dual-polarized base station antenna loaded with antenna decoupling surface |
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| CN114899614A (en) * | 2022-05-11 | 2022-08-12 | 西南交通大学 | Metamaterial dual-frequency filtering antenna |
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