CN102723584A - Metamaterial satellite antenna and satellite receiving system - Google Patents

Abstract

The invention discloses a metamaterial satellite antenna. The metamaterial satellite antenna comprises a feed source, a metamaterial flat plate, a flat plate supporting rod with one end fixedly connected with the metamaterial flat plate, a feed source clamping piece connected with the feed source and movably connected to the other end of the flat plate supporting rod, and a fastening piece used for fixation the flat plate supporting rod on a wall; a slide groove is formed at one end of the flat plate supporting rod, which is connected with the feed source clamping piece; a regulating groove intersecting with the slide groove is formed on the feed source clamping piece, at least one adjusting bolt sequentially passes through the regulating groove and the slide groove so as to lock and position the feed source clamping piece and the flat plate supporting rod at opposite positions; the metamaterial flat plate comprises a single-layered core layer and a reflecting plate arranged on the rear surface of the core layer; the core layer comprises a substrate and a plurality of artificial microstructures adhered to the front surface of the substrate; a reflecting plate is adhered to the rear surface of the substrate; and the refractive index distribution of the single-layered core layer satisfies a specific formula. The flaky metamaterial flat plate takes the place of a traditional parabolic antenna, so that the manufacturing is simple, and the structure is light and thin. The invention further provides a satellite receiving system.

Description

A kind of ultra material satellite antenna and satellite receiving system

Technical field

The present invention relates to the communications field, more particularly, relate to a kind of ultra material satellite antenna and satellite receiving system.

Background technology

Existing satellite antenna, for example satellite television receiving antenna adopts traditional reflector antenna to be generally parabolic antenna usually, and parabolic antenna is responsible for the signal reflex that receives to the signal receiver that is positioned at along.

Reception after parallel electromagnetic wave (because satellite is quite far away with the distance of the earth, its electromagnetic wave that sends can be thought plane wave when arriving ground) reflects through parabolic antenna, converges on the signal receiver during from electromagnetic wave signal that satellite transmits.

But the Machining of Curved Surface difficulty of the reflecting surface of parabolic antenna is big, and required precision is also high, therefore, make trouble, and cost is higher.

Summary of the invention

Technical problem to be solved by this invention is to difficult, the defect of high cost of existing satellite antenna processing, a kind of ultra material satellite antenna simple, low cost of manufacture of processing to be provided.

The technical solution adopted for the present invention to solve the technical problems is: a kind of ultra material satellite antenna; Comprise that feed, ultra material are dull and stereotyped, an end is connected with the dull and stereotyped pole of the dull and stereotyped fixed connection of ultra material, with said feed and be movably connected in feed fastener on the said dull and stereotyped pole other end, can be with the securing member of said dull and stereotyped strut fixation to the wall; An end that links to each other with said feed fastener of said dull and stereotyped pole offers slippage slot vertically; Offer the regulating tank that intersects with said slippage slot on the said feed fastener, thereby at least one adjusting said regulating tank of screw bolt passes and slippage slot are with the relative position locking positioning of said feed fastener and dull and stereotyped pole; The reflecting plate on surface after said ultra material flat board comprises the individual layer core layer and is arranged on core layer, said core layer comprise that substrate reaches a plurality of artificial micro-structural attached to the substrate front surface, and surface attachment has said reflecting plate behind the said substrate.

Further, the refraction index profile of said individual layer core layer satisfies following formula:

$n(x,y,0)=n_{\max }-\frac{\mathrm{dis}-v_{\mathrm{segment}}}{\stackrel{\‾}{D}};$

v _segment=ss+λ*num _segment；

${\mathrm{num}}_{\mathrm{segment}}=\mathrm{floor}\left(\frac{\mathrm{dis}-\mathrm{ss}}{\mathrm{\λ}}\right);$

$\stackrel{\‾}{D}=\frac{\mathrm{\λ}}{n_{\max }-n_{\min }};$

dis=d ₁+d ₂；

$d_1=\sqrt{x^2+{(y-y_{\mathrm{source}})}^2+{\mathrm{<figure-callout\; id="2"\; label="z\; source"\; filenames="HDA00001709449600041.png"\; state="\{\{state\}\}">z</figure-callout>}}_{\mathrm{source}}^{}};$

d ₂=sinγ*(L/2-y)；

ss=sinγ*(L/2-y _virtual)-cosγ*z _virtual；

Above formula is on ultra material flat board, to set up coordinate system, and the dull and stereotyped central point of wherein ultra material is the origin of coordinates (0,0; 0); Satellite is at the subpoint on the said vertical wall, ultra material dull and stereotyped central point and the subpoint three point on a straight line of feed on said vertical wall, and said 3 conllinear is the y axle, and towards the direction of satellite on said vertical wall for just; Vertical said ultra material flat board is the z axle, and outside wall surface for just;

Wherein, the refractive index value of any arbitrarily on n (x, y, 0) the expression core layer;

L representes the effective length that core layer is cut by coordinate surface yoz;

n _MaxThe maximum of the refractive index of expression core layer;

n _MinThe minimum value of the refractive index of expression core layer;

λ representes the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ representes to send from particular satellite is become with the dull and stereotyped normal of ultra material when ultra material planar surface incident;

Floor representes to round downwards;

(x _Source, y _Source, z _Source) coordinate of expression feed equivalent point;

(x _Virtual, y _Virtual, z _Virtual) expression feed equivalent point is with respect to the coordinate of the symmetric points of coordinate surface xoy.

Further, said feed fastener is the U-shaped spring leaf, and said feed inserts the arc area of said U-shaped spring leaf, and a holding screw passes two adjutages of said U-shaped spring leaf and pushes the two said feed is compressed the location.

Further, said dull and stereotyped strut fixation is comprised that to the securing member on the wall being placed on said flat board props up the compressing tablet on the rod outer surface and pass the stock screw with the entering wall respectively from said compressing tablet two ends.

Further, said ultra material satellite antenna also comprises the diaphragm that covers on the artificial micro-structural.

Further, said diaphragm is PS plastics, PET plastics or HIPS plastics, and the thickness of said diaphragm is 0.1-2mm.

Further, the metal micro structure of said artificial micro-structural for constituting by copper cash or silver-colored line, said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or the method at ion quarter attached on the said substrate.

Further; Said metal micro structure is the plane flakes; Said metal micro structure has first metal wire and second metal wire of vertically dividing equally each other, and said first metal wire is identical with the length of second metal wire, and the said first metal wire two ends are connected with two first metal branches of equal length; The said first metal wire two ends are connected on the mid point of two first metal branches; The said second metal wire two ends are connected with two second metal branches of equal length, and the said second metal wire two ends are connected on the mid point of two second metal branches, the equal in length of the said first metal branch and the second metal branch.

Further; Each the first metal branch of the alabastrine metal micro structure in said plane and the two ends of each second metal branch also are connected with identical the 3rd metal branch, and the mid point of corresponding the 3rd metal branch links to each other with the end points of the first metal branch and the second metal branch respectively.

Further; First metal wire of the alabastrine metal micro structure in said plane and second metal wire are provided with two kinks, and the alabastrine metal micro structure in said plane revolves the figure that turn 90 degrees to any direction with the intersection point of second metal wire around first metal wire and all overlaps with former figure in metal micro structure plane of living in.

According to ultra material satellite antenna of the present invention,, after responding through flat ultra plate of material, feasible electromagnetic wave of coming from satellites transmits converges at signal receiver through the refraction index profile of precise design core layer; In addition, by the traditional parabolic antenna of the dull and stereotyped replacement of the ultra material of sheet, make processing and be more prone to, cost is cheaper, and the dull and stereotyped integral thickness of the ultra material of design is in the millimeter rank according to this in addition, and suitable is frivolous.

The present invention also provides a kind of satellite receiving system, comprises the DVB of satellite antenna, connection signal receiver, and said satellite antenna is above-mentioned ultra material satellite antenna.

Description of drawings

Fig. 1 is the tomograph of ultra material satellite antenna of the present invention;

Fig. 2 is the tomograph at another visual angle of ultra material satellite antenna shown in Figure 1;

Fig. 3 is the dull and stereotyped structural representation of ultra material of the present invention;

Fig. 4 is the structural representation of core layer of the present invention;

Fig. 5 is the sketch map of one of them ultra material cell of core layer of the present invention;

Fig. 6 is the sketch map of the alabastrine metal micro structure in plane of the present invention;

Fig. 7 is a kind of derived structure of the alabastrine metal micro structure in plane shown in Figure 6;

Fig. 8 is a kind of distressed structure of the alabastrine metal micro structure in plane shown in Figure 6;

Fig. 9 is phase I of differentiation of the topology of the alabastrine metal micro structure in plane;

Figure 10 is the second stage of differentiation of the topology of the alabastrine metal micro structure in plane.

Embodiment

The present invention relates to a kind of ultra material satellite antenna,, comprise feed 3, ultra material flat board 100, feed fastener 4, dull and stereotyped pole 5, securing member 6 like Fig. 1, shown in Figure 2.Wherein, feed fastener 4 is the U-shaped spring leaf, and feed 3 inserts the arc area of U-shaped spring leaf, and a holding screw passes two adjutages of U-shaped spring leaf and pushes the two feed 3 is compressed the location.Two adjutages are then clamped an end of L shaped dull and stereotyped pole 5 and are passed through two adjustment screw location.The other end of dull and stereotyped pole 5 is fixedly connected with ultra material dull and stereotyped 100, make feed 3 towards ultra material flat board 100, and distance and relative position between feed 3 and the ultra material dull and stereotyped 100 is adjustable.

As shown in Figure 1; One end and the feed 3 of feed pole 5 flexibly connect; Concrete connected mode is: an end that links to each other with feed fastener 4 of dull and stereotyped pole 5 offers slippage slot 50 vertically; Respectively have two regulating tanks that parallel 40 on two adjutages of feed fastener 4; At least one is regulated bolt 40 and passes the regulating tank 40 of an adjutage, the slippage slot 50 on the dull and stereotyped pole 5,40 backs and nut tightenings of the regulating tank on another adjutage successively, thereby with the relative position locking positioning of feed fastener 4 and dull and stereotyped pole 5; Regulating tank 40 is crossing and not parallel with slippage slot 50 directions; Make and both can regulate the fore-and-aft distance of feed 3 along the direction of slippage slot 50 to dull and stereotyped 100 planes of ultra material; Also can regulate the lateral separation of feed 3 along the direction of regulating tank 40 to dull and stereotyped 100 centers of ultra material; Make more variation of adjusting, the result is more accurate.

Said dull and stereotyped pole 5 is fixed to the securing member 6 on the wall, in the present embodiment,, comprises the compressing tablet that is placed on dull and stereotyped pole 5 outer surfaces and pass stock screw respectively from the compressing tablet two ends with the entering wall like Fig. 1, shown in Figure 2.In order to strengthen fixed effect, also be installed with long dried screw at the center of ultra material dull and stereotyped 100, directly hammer in the wall.Obviously, securing member 6 has a variety of implementations, variety of way such as for example hinged, stickup, binding, welding with metope, and this paper repeats no more.

In addition, in order to improve the fastness between dull and stereotyped pole 5 and the ultra material dull and stereotyped 100, an end that is connected with ultra material dull and stereotyped 100 of dull and stereotyped pole 5 is arranged to cross, and four circumference bisecting point screws with the ultra material of circle dull and stereotyped 100 are connected respectively, and are as shown in Figure 2.

Be close to the surface on the wall surface because the promptly ultra material of the agent structure of satellite antenna of the present invention dull and stereotyped 100 is fixed on, the wind resistance that therefore receives is smaller, greatly reduces installation requirement, also saves spatial volume simultaneously, has good aesthetic.

Extremely shown in Figure 5 like Fig. 3; The reflecting plate 200 on surface after the ultra material dull and stereotyped 100 that is arranged on the feed rear comprises core layer 10 and is arranged on core layer; Said core layer 10 comprises a plurality of artificial micro-structural 12 that substrate 13 reaches attached to substrate 13 front surfaces, and said substrate 13 back surface attachment have said reflecting plate 200, and feed 3 is traditional corrugated horn; This polarization mode difference according to the TV signal of satellite has different selections; For example No. 9, culminant star, and the existing left-hand circular polarization of its TV signal has right-handed circular polarization again, so feed should adopt the corrugated horn of double-circle polarization.Among the present invention, the dull and stereotyped 100 arbitrary longitudinal sections of said ultra material are of similar shape and area, and the longitudinal section here is meant in the ultra material flat board the vertical section in axis with ultra material flat board.The dull and stereotyped longitudinal section of said ultra material is square, circular or oval; Preferably, the dull and stereotyped longitudinal section of said ultra material is square, the dull and stereotyped processing easily of the ultra material that obtains like this; The square of 300 * 300mm or 450 * 450mm for example, the rectangle of 450 * 475mm.Circle can be that diameter is 250,300 or the circle of 450mm.

Among the present invention, the refraction index profile of said individual layer core layer satisfies following formula:

$n(x,y,0)=n_{\max }-\frac{\mathrm{dis}-v_{\mathrm{segment}}}{\stackrel{\&OverBar;}{D}}---\left(1\right);$

v _segment=ss+λ*num _segment （2）；

${\mathrm{num}}_{\mathrm{segment}}=\mathrm{floor}\left(\frac{\mathrm{dis}-\mathrm{ss}}{\mathrm{\&lambda;}}\right)---\left(3\right);$

$\stackrel{\&OverBar;}{D}=\frac{\mathrm{\&lambda;}}{n_{\max }-n_{\min }}---\left(4\right);$

dis=d ₁+d ₂ （5）；

$d_1=\sqrt{x^2+{(y-y_{\mathrm{source}})}^2+z_{\mathrm{source}}^2}---\left(6\right);$

d ₂=sinγ*(L/2-y) （7）；

ss=sinγ*(L/2-y _virtual)-cosγ*z _virtual （8）；

Above formula is on ultra material flat board, to set up coordinate system, and the dull and stereotyped central point of wherein ultra material is the origin of coordinates (0,0; 0); Satellite is at the subpoint on the said vertical wall, ultra material dull and stereotyped central point and the subpoint three point on a straight line of feed on said vertical wall, and said 3 conllinear is the y axle, and towards the direction of satellite on said vertical wall for just; Vertical said ultra material flat board is the z axle, and outside wall surface for just;

Wherein, the refractive index value of any arbitrarily on n (x, y, 0) the expression core layer;

L representes the effective length that core layer is cut by coordinate surface yoz;

n _MaxThe maximum of the refractive index of expression core layer;

n _MinThe minimum value of the refractive index of expression core layer;

λ representes the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ representes to send from particular satellite is become with the dull and stereotyped normal of ultra material when ultra material planar surface incident;

Floor representes to round downwards;

(x _Source, y _Source, z _Source) coordinate of expression feed equivalent point;

(x _Virtual, y _Virtual, z _Virtual) expression feed equivalent point is with respect to the coordinate of the symmetric points of coordinate surface xoy.

As shown in Figure 4; For the relation of substrate in the displaing core layer clearly 13 with artificial micro-structural 12; The layer at artificial micro-structural 12 places representes that with hatching we are referred to as artificial microstructured layers 120, and artificial microstructured layers 120 promptly is made up of all artificial micro-structurals of adhering on the substrate.

Dull and stereotyped by the determined ultra material of formula (1) to formula (8), the plane wave that can make antenna receive can converge at feed equivalent point place behind ultra material flat board.

In addition, among the present invention, preferably; Said ultra material satellite antenna also comprises the diaphragm that covers on the artificial micro-structural 12, and diaphragm hides artificial microstructured layers 120 fully, can protect artificial micro-structural like this; Simultaneously, can also strengthen the dull and stereotyped mechanical performance of ultra material.Among the present invention, said diaphragm can be PS plastics (polystyrene plastics), PET plastics (poly terephthalic acid class plastics) or HIPS plastics (impact resistant polystyrene).

Among the present invention, the thickness of said diaphragm is 0.1-2mm, and concrete thickness combines wave penetrate capability and mechanical performance decision, for example can be 1mm.

Among the present invention, preferably, the thickness of said core layer is 0.11-2.5mm, and wherein, the thickness of substrate is 0.1-2mm, and the thickness of a plurality of artificial micro-structurals is 0.01-0.5mm, and promptly the thickness of artificial microstructured layers is 0.01-0.5mm.As a concrete example, the thickness of said core layer is 1.036mm, and wherein, the thickness of substrate is 1.018mm, and the thickness of a plurality of artificial micro-structurals is 0.018mm.

Ultra material satellite antenna of the present invention is when using as transmitting antenna, and promptly feed is as radiation source, and the dull and stereotyped effect of ultra material is the form outgoing with plane wave behind ultra material flat board of plane wave that signal receiver is sent.

Ultra material satellite antenna of the present invention is when using as reception antenna, and promptly feed is as wave collecting device, and the dull and stereotyped effect of ultra material is that the plane wave that can make antenna receive can converge at feed equivalent point place behind ultra material flat board.

Among the present invention, the metal micro structure of said artificial micro-structural for constituting by copper cash or silver-colored line, said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or the method at ion quarter respectively attached on the said substrate.Preferably, said artificial micro-structural is the alabastrine metal micro structure in plane shown in Figure 6 develops a plurality of different topology that obtains through topology a metal micro structure.

Among the present invention; Core layer can obtain through following method; Promptly on any one surface of substrate, cover copper, obtain a plurality of metal micro structures (shape of a plurality of metal micro structures and its arranging on substrate obtains through Computer Simulation in advance) through etching method again.

It is dull and stereotyped that core layer, reflecting plate pressing one are promptly obtained ultra material of the present invention.

Among the present invention, said substrate is made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material etc.Macromolecular material is available to have F4B composite material, FR-4 composite material, PS (polystyrene) etc.

Shown in Figure 6 is the sketch map of the alabastrine metal micro structure in plane; Described alabastrine metal micro structure has the first metal wire J1 and the second metal wire J2 that vertically divides equally each other; The said first metal wire J1 is identical with the length of the second metal wire J2; The said first metal wire J1 two ends are connected with two first F1 of metal branch of equal length; The said first metal wire J1 two ends are connected on the mid point of two first F1 of metal branch; The said second metal wire J2 two ends are connected with two second F2 of metal branch of equal length, and the said second metal wire J2 two ends are connected on the mid point of two second F2 of metal branch, the equal in length of said first F1 of metal branch and second F2 of metal branch.

Fig. 7 is a kind of derived structure of the alabastrine metal micro structure in plane shown in Figure 6.Its two ends at each first F1 of metal branch and each second F2 of metal branch all are connected with identical the 3rd F3 of metal branch, and the mid point of corresponding the 3rd F3 of metal branch links to each other with the end points of first F1 of metal branch and second F2 of metal branch respectively.The rest may be inferred, and the present invention can also derive the metal micro structure of other form.

Fig. 8 is a kind of distressed structure of the alabastrine metal micro structure in plane shown in Figure 6; The metal micro structure of this kind structure; The first metal wire J1 and the second metal wire J2 are not straight lines; But folding line, the first metal wire J1 and the second metal wire J2 are provided with two kink WZ, divide equally but the first metal wire J1 remains vertical with the second metal wire J2; Through be provided with kink towards with the relative position of kink on first metal wire and second metal wire, make metal micro structure shown in Figure 9 wind to revolve the figure that turn 90 degrees with the axis of the second metal wire intersection point to any direction all to overlap with former figure perpendicular to first metal wire.In addition, other distortion can also be arranged, for example, the first metal wire J1 and the second metal wire J2 all are provided with a plurality of kink WZ.

Among the present invention; Said core layer 11 can be divided into the ultra material cell D a plurality of as shown in Figure 4 of array arrangement; Each ultra material cell D comprises base board unit U and attached to the artificial micro-structural 12 on the base board unit U, the length and width height of ultra material cell D all is not more than 1/5th wavelength usually, is preferably 1/10th wavelength; Therefore, can confirm the size of ultra material cell D according to the operating frequency of antenna.As shown in Figure 4, said artificial micro-structural is attached to the SR surface of base board unit U.

Known refractive index

wherein μ is a relative permeability; ε is a relative dielectric constant, and μ and ε close and be called electromagnetic parameter.Experiment showed, when electromagnetic wave passes through refractive index dielectric material heterogeneous, can be to the big direction deviation of refractive index.Under the certain situation of relative permeability (usually near 1); Refractive index is only relevant with dielectric constant; Under the situation that substrate is selected; Utilize the arbitrary value (within the specific limits) that only can realize ultra material cell refractive index, under this center of antenna frequency, utilize simulation software the artificial micro-structural of electric field response; Like CST, MATLAB, COMSOL etc.; The dielectric constant of artificial micro-structural (the alabastrine metal micro structure in plane as shown in Figure 6) that obtains a certain given shape through emulation can be listed data one to one, the core layer 10 that the specific refractive index that can design us needs distributes along with the situation that the refractive index variable of topology changes.

Among the present invention, the structural design of core layer can obtain through Computer Simulation (CST emulation), and is specific as follows:

(1) confirms the attaching substrates of metal micro structure.For example dielectric constant is 2.7 medium substrate, and the material of medium substrate can be FR-4, F4b or PS.

(2) size of definite ultra material cell.The size of the size of ultra material cell is obtained by the centre frequency of antenna, utilizes frequency to obtain its wavelength, gets less than 1/5th a numerical value of wavelength length C D and the width KD as ultra material cell D again.For example, corresponding to the centre frequency of 11.95G, said ultra material cell D can for long CD as shown in Figure 4 and wide KD be 2.8mm, thickness HD is the square platelet of 1.036mm.

(3) confirm the material and the topological structure of metal micro structure.Among the present invention, the material of metal micro structure is a copper, and the topological structure of metal micro structure is the alabastrine metal micro structure in plane shown in Figure 6, and its live width W is consistent everywhere; The topological structure here is meant the basic configuration that topology develops.

(4) confirm the topology parameter of metal micro structure.As shown in Figure 6, among the present invention, the topology parameter of the alabastrine metal micro structure in plane comprises the live width W of metal micro structure, the length a of the first metal wire J1, the length b of first F1 of metal branch.

(5) confirm the differentiation restrictive condition of the topology of metal micro structure.Among the present invention; The differentiation restrictive condition of the topology of metal micro structure has, the minimum spacing WL between the metal micro structure (promptly as shown in Figure 6, the long limit of metal micro structure and ultra material cell or the distance of broadside are WL/2); The live width W of metal micro structure, the size of ultra material cell; Because the processing technology restriction, WL is more than or equal to 0.1mm, and same, live width W is greater than to equal 0.1mm.During emulation for the first time, WL can get 0.1mm, and W can get 0.3mm, and ultra material cell is of a size of the long and wide 2.8mm that is, thickness is 1.018mm, and this moment, the topology parameter of metal micro structure had only a and two variablees of b.The topology of metal micro structure through as Fig. 9 differentiation mode shown in Figure 10 extremely, corresponding to a certain CF (for example 11.95GHZ), can obtain a continuous variations in refractive index scope.

Particularly, the differentiation of the topology of said metal micro structure comprises two stages (basic configuration that topology develops is a metal micro structure shown in Figure 6):

Phase I: according to developing restrictive condition, under the situation that the b value remains unchanged, a value is changed to maximum from minimum value, the metal micro structure in this evolution process is " ten " font (except when a gets minimum value).In the present embodiment, the minimum value of a is 0.3mm (live width W), and the maximum of a is (CD-WL).Therefore, in the phase I, the differentiation of the topology of metal micro structure is as shown in Figure 9, is the square JX1 of W from the length of side promptly, develops into maximum " ten " font topology JD1 gradually.In the phase I, along with the differentiation of the topology of metal micro structure, the refractive index of the ultra material cell corresponding with it increases (respective antenna one CF) continuously.

Second stage: according to developing restrictive condition, when a was increased to maximum, a remained unchanged; At this moment, b is increased continuously maximum from minimum value, the metal micro structure in this evolution process is the plane flakes.In the present embodiment, the minimum value of b is 0.3mm, and the maximum of b is (CD-WL-2W).Therefore; In second stage, the differentiation of the topology of metal micro structure is shown in figure 10, promptly from " ten " font topology JD1 of maximum; Develop into the maximum alabastrine topology JD2 in plane gradually; The alabastrine topology JD2 in the plane of the maximum here is meant that the length b of first J1 of metal branch and second J2 of metal branch can not extend again, otherwise the first metal branch and the second metal branch will take place to intersect.In second stage, along with the differentiation of the topology of metal micro structure, the refractive index of the ultra material cell corresponding with it increases (respective antenna one CF) continuously.

Comprised n if obtain the variations in refractive index scope of ultra material cell through above-mentioned differentiation _MinTo n _MaxContinuous excursion, then satisfy design demand.Do not satisfy design demand if above-mentioned differentiation obtains the variations in refractive index scope of ultra material cell, for example maximum is too little or minimum value is excessive, then changes WL and W, and emulation again is up to obtaining the variations in refractive index scope that we need.

To (8), after a series of ultra material cell that emulation is obtained is arranged according to its corresponding refractive index (in fact being exactly a plurality of artificial micro-structural the arranging on substrate of different topology shape), can obtain core layer of the present invention according to formula (1).

After preparing core layer, reflecting plate 200 of the present invention adopts conventional pure aluminum plate with smooth surface or fine copper plate etc., to realize the effect of reflection electromagnetic wave.

The said ultra material satellite antenna of more than describing is different according to working frequency range and environment for use, can be satellite television receiving antenna, satellite communication antena (two-way communication), microwave antenna or radar antenna.Certainly, said ultra material satellite antenna of the present invention can also substitute other various reflector antennas.

In addition, the present invention also provides the present invention that a kind of satellite receiving system also is provided, and comprises the DVB of satellite antenna, signal receiver, connection signal receiver, and said satellite antenna is the above-mentioned ultra material satellite antenna of the present invention.Among the present invention, said signal receiver is traditional corrugated horn.DVB for example can adopt the N6188 of Tongzhou Electronics, is used to receive the satellite TV signal of No. 9, culminant star, and it is existing technology, no longer states here.

Combine accompanying drawing that embodiments of the invention are described above; But the present invention 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 enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.

Claims (11)

1. ultra material satellite antenna; It is characterized in that; Comprise that feed, ultra material are dull and stereotyped, an end is connected with the dull and stereotyped pole of the dull and stereotyped fixed connection of ultra material, with said feed and be movably connected in feed fastener on the said dull and stereotyped pole other end, with the securing member of said dull and stereotyped strut fixation to the wall; Said dull and stereotyped pole offers slippage slot vertically with the end that said feed fastener links to each other; Offer the regulating tank that intersects with said slippage slot on the said feed fastener, thereby at least one adjusting said regulating tank of screw bolt passes and slippage slot are with the relative position locking positioning of said feed fastener and dull and stereotyped pole; The reflecting plate on surface after said ultra material flat board comprises the individual layer core layer and is arranged on core layer, said core layer comprise that substrate reaches a plurality of artificial micro-structural attached to the substrate front surface, and surface attachment has said reflecting plate behind the said substrate.

2. ultra material satellite antenna according to claim 1 is characterized in that the refraction index profile of said individual layer core layer satisfies following formula:

$n(x,y,0)=n_{\max }-\frac{\mathrm{dis}-v_{\mathrm{segment}}}{\stackrel{\&OverBar;}{D}};$

v _segment=ss+λ*num _segment；

${\mathrm{num}}_{\mathrm{segment}}=\mathrm{floor}\left(\frac{\mathrm{dis}-\mathrm{ss}}{\mathrm{\&lambda;}}\right);$

$\stackrel{\&OverBar;}{D}=\frac{\mathrm{\&lambda;}}{n_{\max }-n_{\min }};$

dis=d ₁+d ₂；

$d_1=\sqrt{x^2+{(y-y_{\mathrm{source}})}^2+z_{\mathrm{source}}^2};$

d ₂=sinγ*(L/2-y)；

ss=sinγ*(L/2-y _virtual)-cosγ*z _virtual ；

Above formula is on ultra material flat board, to set up coordinate system, and the dull and stereotyped central point of wherein ultra material is the origin of coordinates (0,0; 0); Satellite is at the subpoint on the said vertical wall, ultra material dull and stereotyped central point and the subpoint three point on a straight line of feed on said vertical wall, and said 3 conllinear is the y axle, and towards the direction of satellite on said vertical wall for just; Vertical said ultra material flat board is the z axle, and outside wall surface for just;

Wherein, the refractive index value of any arbitrarily on n (x, y, 0) the expression core layer;

L representes the effective length that core layer is cut by coordinate surface yoz;

n _MaxThe maximum of the refractive index of expression core layer;

n _MinThe minimum value of the refractive index of expression core layer;

λ representes the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ representes to send from particular satellite is become with the dull and stereotyped normal of ultra material when ultra material planar surface incident;

Floor representes to round downwards;

(x _Source, y _Source, z _Source) coordinate of expression feed equivalent point;

(x _Virtual, y _Virtual, z _Virtual) expression feed equivalent point is with respect to the coordinate of the symmetric points of coordinate surface xoy.

3. ultra material satellite antenna according to claim 1; It is characterized in that; Said feed fastener is the U-shaped spring leaf, and said feed inserts the arc area of said U-shaped spring leaf, and a holding screw passes two adjutages of said U-shaped spring leaf and pushes the two said feed is compressed the location.

4. ultra material satellite antenna according to claim 1; It is characterized in that, said dull and stereotyped strut fixation is comprised that to the securing member on the wall being placed on said flat board props up the compressing tablet on the rod outer surface and pass the stock screw with the entering wall respectively from said compressing tablet two ends.

5. ultra material satellite antenna according to claim 1 is characterized in that, said ultra material satellite antenna also comprises the diaphragm that covers on the artificial micro-structural.

6. ultra material satellite antenna according to claim 5 is characterized in that, said diaphragm is PS plastics, PET plastics or HIPS plastics, and the thickness of said diaphragm is 0.1-2mm.

7. ultra material satellite antenna according to claim 1; It is characterized in that; The metal micro structure of said artificial micro-structural for constituting by copper cash or silver-colored line, said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or the method at ion quarter attached on the said substrate.

8. ultra material satellite antenna according to claim 7; It is characterized in that; Said metal micro structure is the plane flakes; Said metal micro structure has first metal wire and second metal wire of vertically dividing equally each other, and said first metal wire is identical with the length of second metal wire, and the said first metal wire two ends are connected with two first metal branches of equal length; The said first metal wire two ends are connected on the mid point of two first metal branches; The said second metal wire two ends are connected with two second metal branches of equal length, and the said second metal wire two ends are connected on the mid point of two second metal branches, the equal in length of the said first metal branch and the second metal branch.

9. ultra material satellite antenna according to claim 8; It is characterized in that; Each the first metal branch of the alabastrine metal micro structure in said plane and the two ends of each second metal branch also are connected with identical the 3rd metal branch, and the mid point of corresponding the 3rd metal branch links to each other with the end points of the first metal branch and the second metal branch respectively.

10. ultra material satellite antenna according to claim 8; It is characterized in that; First metal wire of the alabastrine metal micro structure in said plane and second metal wire are provided with two kinks, and the alabastrine metal micro structure in said plane revolves the figure that turn 90 degrees to any direction with the intersection point of second metal wire around first metal wire and all overlaps with former figure in metal micro structure plane of living in.

11. a satellite receiving system comprises satellite antenna, connects the DVB of signal receiver, it is characterized in that said satellite antenna is any described ultra material satellite antenna of claim 1 to 10.

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