CN102723582A - Meta-material satellite antenna and satellite receiving system - Google Patents

Abstract

The invention discloses a meta-material satellite antenna, comprising a meta-material flat plate which is arranged behind a signal transceiver, wherein the meta-material flat plate comprises a core layer and a reflection plate arranged on the rear surface of the core layer; the core layer comprises a substrate and a plurality of artificial micro-structures attached to the front surface of the substrate; the reflection plate is attached to the rear surface of the substrate; after electromagnetic waves sent by the signal receiver pass through the meta-material flat plate, the minor lobe level of the satellite antenna is effectively reduced; and the sheet-shaped meta-material flat plate replaces a traditional parabolic antenna, so that the manufacturing and machining are easier and the cost is lower; the whole thickness of the meta-material flat plate designed by the invention is at a millimeter grade and the meta-material flat plate is very light and thin; and the special artificial micro-structures are adopted so that the satellite antenna has a frequency selection function. 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 transceiver 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 transceiver during from electromagnetic wave signal that satellite transmits.Usually, the signal transceiver that parabolic antenna is corresponding is a horn antenna, and this satellite antenna has certain limitation to the selection of frequency.

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 existing satellite antenna processing be difficult for, defect of high cost, a kind of ultra material satellite antenna of processing simple, low cost of manufacture and having the frequency selection function is provided.

The technical solution adopted for the present invention to solve the technical problems is: a kind of ultra material satellite antenna; Said ultra material satellite antenna comprises that the ultra material that is arranged on the signal transceiver rear is dull and stereotyped; The reflecting plate on surface after said ultra material flat board comprises core layer and is arranged on core layer; Said core layer comprises 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, and said reflecting plate is latticed reflecting plate; Said each artificial micro-structural comprises many from outside spiral extension of a central point and mutually disjoint helix; Said core layer refractive index on normal direction remains unchanged; Front surface with core layer is the XY plane; On plane, core layer front surface place, be projected as origin of coordinates O with the signal transceiver equivalent point; Set up the two-dimensional coordinate system of XOY, said core layer front surface any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\sin \mathrm{\γ}-(s+\mathrm{k\λ})}{D};$

s＝2z _o?cosγ；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA00001709384800051.png,HDA00001709384800061.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{z_o}^2}+(y_o-y)\&times;\sin \mathrm{\&gamma;}-2z_o\cos \mathrm{\&gamma;}}{\mathrm{\&lambda;}}\right\};$

$D=\frac{\mathrm{\&lambda;}}{2(n_{\max }-n_{\min })};$

Wherein, n _{(x, y)}Expression core layer front surface any point (x, refractive index y);

z _oExpression signal transceiver equivalent point is to the vertical range of core layer front surface;

y _oThe y coordinate figure of intersection point of representing front surface edge and the y axle positive direction of this core layer;

When γ expression signal transceiver was used as emission, the electromagnetic wave of its emission was through behind the ultra material flat board, and the angle that the plane electromagnetic wave of outgoing is become with the core layer normal direction, γ are not equal to zero;

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 pairing electromagnetic wavelength of the centre frequency of ultra material satellite antenna;

D is the thickness of core layer;

Floor representes to round downwards.

Further, each bar helix of said each artificial micro-structural outwards is clockwise or counterclockwise spiral from said central point.

Further, said each artificial micro-structural comprises many spiral broken lines.

Further, said each bar spiral broken line forms the right angle in the position of bending.

Further, said helix is a metal wire.

Further, said ultra material satellite antenna also comprises the diaphragm that covers on the artificial micro-structural, and said diaphragm is PS plastics, PET plastics or HIPS plastics, and the thickness of said diaphragm is 0.1-2mm.

Further, 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.

Further, 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.

Further, each sheet metal is identical square-shaped metal sheet in the said latticed reflecting plate, and its length of side is 18-20mm; Gap between the adjacent metal sheet is 0.13-0.18mm, and the thickness of sheet metal is 0.01-0.5mm.

Further, each sheet metal of said reflecting plate is that the length of side is the square-shaped metal sheet of 19mm, and the gap between the adjacent metal sheet is 0.15mm, and the thickness of sheet metal is 0.018mm.

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.

According to ultra material satellite antenna of the present invention, through the refraction index profile of precise design core layer, after the electromagnetic wave that makes signal transceiver send passes through ultra material flat board; The plane electromagnetic wave of outgoing is non-vanishing with the angle that the core layer normal direction is become; The electromagnetic wave that is outgoing is different with the normal direction of core layer, with respect to the normal direction outgoing of electromagnetic wave with core layer, can reduce the minor level of satellite antenna effectively; Conversely; The electromagnetic wave that is sent by satellite behind ultra material flat board, can converge at signal transceiver equivalent point place during with above-mentioned angle incident; 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; Comprise the tuner of satellite antenna, signal transceiver, connection signal transceiver and the DVB that is connected with tuner; Said satellite antenna is above-mentioned ultra material satellite antenna, and said satellite antenna set is at the rear of signal transceiver.

Description of drawings

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

Fig. 2 is the structural representation of core layer of the present invention;

Fig. 3 is the sketch map of one of them ultra material cell of core layer of the present invention;

Fig. 4 is the sketch map of artificial micro-structural of the present invention;

Fig. 5 is the sketch map of another artificial micro-structural of the present invention;

Fig. 6 is the structural representation of the satellite receiving system of an embodiment of the present invention;

Fig. 7 is another visual angle figure of Fig. 6.

Embodiment

Extremely shown in Figure 3 like Fig. 1; Ultra material satellite antenna according to the present invention comprises the ultra material dull and stereotyped 100 that is arranged on signal transceiver 1 rear; The reflecting plate 200 on surface after said ultra material dull and stereotyped 100 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; Said substrate 13 back surface attachment have said reflecting plate 200, and the front surface of signal transceiver axis Z1 and ultra material flat board 100 has a non-vanishing angle theta.Signal transceiver is traditional corrugated horn in addition.

Reflecting plate 200 of the present invention adopts conventional pure aluminum plate with smooth surface or fine copper plate etc., also can metal coating directly be coated on the effect that core surface realizes reflection electromagnetic wave.

Among the present invention, the arbitrary longitudinal section of core layer of said ultra material dull and stereotyped 100 is 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 longitudinal section of the core layer that said ultra material is dull and stereotyped is square, circular or oval; Preferably, the longitudinal section of the core layer of said ultra material flat board is that square, such core layer is processed easily; The square of 300X300mm or 450X450mm for example, the rectangle of 450X475mm.Circle can be that diameter is 250,300 or the circle of 450mm.The shape of reflecting plate and core layer coupling, and reflecting plate covers on the surface of core layer basically fully.

Among the present invention; Said core layer 10 refractive index on normal direction remains unchanged, and like Fig. 1 and Fig. 2, is the XY plane with the front surface of core layer 10; On plane, core layer front surface place, be projected as origin of coordinates O with signal transceiver equivalent point X; Set up the two-dimensional coordinate system of XOY, said core layer front surface any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\&times;\sin \mathrm{\&gamma;}-(s+\mathrm{k\&lambda;})}{D}---\left(1\right);$

s＝2z _o?cosγ （2）；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA00001709384800051.png,HDA00001709384800061.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{z_o}^2}+(y_o-y)\&times;\sin \mathrm{\&gamma;}-2z_o\cos \mathrm{\&gamma;}}{\mathrm{\&lambda;}}\right\}---\left(3\right);$

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

Fig. 1 be signal transceiver axis Z1 with the plane that constituted of the geostationary satellite (equivalence for a bit) that will communicate by letter dissect ultra material flat board and the resulting cutaway view of signal transceiver two parts in the satellite antenna of the present invention, also be that ultra material flat board and the resulting cutaway view of signal transceiver two parts in the communication in moving satellite antenna of present embodiment dissectd on plane that y axle and signal transceiver axis Z1 are constituted.Wherein, As shown in Figure 2, 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 is represented 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.

Wherein, n _{(x, y)}Expression core layer front surface any point (x, refractive index y);

z _oExpression signal transceiver equivalent point X is to the vertical range of core layer front surface; In fact the equivalent point X of signal transceiver is exactly the feedback point (point of focusing takes place in signal transceiver electromagnetic wave) of satellite antenna of the present invention here; The angle of the dull and stereotyped front surface of signal transceiver axis Z1 and ultra material is θ; In the present embodiment; The equivalent point X of signal transceiver is on the Z1 of signal transceiver axis; Putative signal transceiver bore mid point is ds to the distance of the equivalent point X of signal transceiver, can become ginseng (promptly letting signal transceiver scan the optimum position) through change ds, these two of θ, makes convergence effect optimum;

y _oThe y coordinate figure of intersection point of representing front surface edge and the y axle positive direction of this core layer.

γ expression signal transceiver is as when emission, and the electromagnetic wave of its emission is through behind the ultra material flat board, and the angle that the plane electromagnetic wave of outgoing is become with the core layer normal direction, γ are not equal to zero, preferably 10 °≤γ≤80 °; Concrete angle is determined by multiple factor, like the performance index (gain, minor level etc.) of the residing geographical position of satellite antenna (longitude and latitude), satellite antenna.

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 that frequency is the electromagnetic wavelength of center of antenna frequency;

D is the thickness of core layer;

Floor representes to round downwards, for example, when $\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA00001709384800051.png,HDA00001709384800061.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{{\mathrm{<figure-callout\; id="2"\; label="z\; o"\; filenames="HDA00001709384800051.png,HDA00001709384800061.png"\; state="\{\{state\}\}">z</figure-callout>}}_o}^2}+(y_o-y)\&times;\mathrm{Sin}\mathrm{\&gamma;}-2z_o\mathrm{Cos}\mathrm{\&gamma;}}{\mathrm{\&lambda;}}$ More than or equal to 0 less than 1 o'clock, k gets 0, when

More than or equal to 1 less than 2 o'clock, k gets 1, and the rest may be inferred.

Dull and stereotyped by the determined ultra material of formula (1) to formula (4), the electromagnetic wave that can make signal transceiver send can be the form outgoing of the plane wave of γ angle with the normal direction with ultra material flat board behind ultra material flat board; Equally; As shown in Figure 1; Dull and stereotyped by the determined ultra material of formula (1) to formula (4), the plane wave (being the form incident of the plane wave of γ angle with the normal direction with ultra material flat board) that can make antenna receive can converge at signal transceiver equivalent point X 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 signal transceiver 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 transceiver is sent.

Ultra material satellite antenna of the present invention is when using as reception antenna; Be signal transceiver as wave collecting device, the dull and stereotyped effect of ultra material is that the plane wave (with the direction incident among Fig. 1) that can make antenna receive can converge at signal transceiver equivalent point X 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.Said each artificial micro-structural comprises many from outside spiral extension of a central point and mutually disjoint helix.Preferably, said artificial micro-structural is a metal micro structure shown in Figure 4, through adopting this artificial micro-structural, makes satellite antenna have the function that frequency is selected.

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.

Please refer to Fig. 4, be first embodiment of artificial micro-structural of the present invention.Said artificial micro-structural comprises many identical spiral broken lines, in the present embodiment, and preferred four identical spiral broken lines, these four spiral broken lines form from the outwards clockwise respectively spiral bending of same central point extension.Every the spiral broken line overlaps with adjacent spiral broken line after 360 ° of said central point rotations/4=90 ° angle.Each bar spiral broken line of artificial micro-structural described in the figure forms the right angle in the position of bending, and each bar spiral broken line from the central point of corresponding ultra material cell respectively outwards clockwise the spiral bending extend, outermost one section straight line respectively with four parallel sided of said ultra material cell.Certainly, these spiral broken lines also can extend to form from the outwards counterclockwise respectively spiral bending of same central point.

Please refer to Fig. 5, be second embodiment of artificial micro-structural of the present invention.Said artificial micro-structural comprises six identical helical curves, and these six helical curves form from the outwards clockwise respectively helical buckling extension of same central point.Every helical curve overlaps with adjacent helical curve after 360 ° of this central point rotations/6=60 °.The same, these helical curves also can extend to form from the outwards counterclockwise respectively helical buckling of same central point.

It is thus clear that every people from outside clockwise or counterclockwise spiral of same central point and a mutually disjoint above helix formation all is protection scope of the present invention in micro-structural.

Among the present invention; Said core layer 11 can be divided into the ultra material cell D a plurality of as shown in Figure 3 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 2, 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, utilizes the arbitrary value (within the specific limits) that only can realize ultra material cell refractive index to the artificial micro-structural of electric field response; Under this center of antenna frequency; Utilize simulation software,, obtain the situation that the dielectric constant of the artificial micro-structural of a certain given shape changes along with the refractive index variable of topology through emulation like CST, MATLAB, COMSOL etc.; Can list data one to one, the core layer 10 that the specific refractive index that can design us needs distributes.

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 2 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 a structure shown in Figure 4, and its live width W is consistent everywhere;

In addition; The present invention also provides a kind of satellite receiving system; Comprise satellite antenna, signal transceiver 1, connect the tuner of signal transceiver 1 and the DVB that is connected through cable with tuner (not indicating among the figure); Said satellite antenna is the above-mentioned ultra material satellite antenna of the present invention, and said satellite antenna set is at the rear of signal transceiver 1.Among the present invention, said signal transceiver 1 is traditional corrugated horn.DVB and tuner also are existing technology, no longer state here.Here, ultra material satellite antenna is used to satellite earth antenna, for example satellite television receiving antenna.

Said signal transceiver for example can be the CL11R integral high frequency head of Tongzhou Electronics, and incoming frequency is 11.7 ~ 12.2GHz, and output frequency is 950 ~ 1450MHz, can watch most of Ku band satellite TV.DVB for example can adopt the N6188 of Tongzhou Electronics, is used to receive the satellite TV signal of No. 9, culminant star.

In addition, the ultra plate of material support among Fig. 6 and Fig. 7 is an optimal way of the ultra plate of material support of the present invention, and it comprises the framework 3 and the dull and stereotyped angle regulating device of ultra material of fixing ultra material dull and stereotyped 100; Said reflecting plate adjusting device comprises the Connection Block 4 that is fixedly connected with frame 3 and signal transceiver pole 2, be fixed on hinged seat 5 on the Connection Block 4, with hinged seat 5 rotating articulated joints that are connected 6 and the adjusting rod 7 that removably connects with articulated joint 6.

In the present embodiment; Said articulated joint 6 places hinged seat 5; Articulated joint 6 realizes rotating be connected through running through articulated joint with the first screw rod LG1 of hinged seat with hinged seat 5; The two ends of the first screw rod LG1 are provided with two screwed retaining ring LM1; The bilateral symmetry of hinged seat 5 is provided with the first sliding tray HC1 and the second sliding tray HC2, and said reflecting plate adjusting device also comprises the second screw rod LG2 that runs through the first sliding tray HC1, articulated joint 6 and the second sliding tray HC2, and the two ends of the second screw rod LG2 are provided with two locking nut LM2.

In the present embodiment; Said adjusting rod 7 is connected through locking device is dismountable with articulated joint 6; Said adjusting rod 7 is a round bar; Said locking device comprises that the latch SJB of the circular arc of being close to adjusting rod 7 outer surface settings reaches the last locking flange STY that is oppositely arranged with latch SJB and reaches locking flange XTY down; The said locking flange STY of going up reaches down, and the outward flange of locking flange XTY is circular-arc; Said go up locking flange STY and down the outside of locking flange XTY all be close on the outer surface of adjusting rod 7, the both sides of latch SJB are threaded with articulated joint 6 through bolt LS3, said go up locking flange STY and down the position setting that contacts with adjusting rod 7 of locking flange XTY offers the equally distributed anti-slop serrations (not shown) of ability.

In the present embodiment, said antenna mount pad also comprise be connected adjusting rod 7 other ends meet wallboard QB, said connecing on the metope that strong plate QB can be fixed to the house (like wall in the south) for example is fixed on the metope through plain screw or tapping screw.

In the present embodiment; Said framework 3 comprises upper side frame 31, middle frame 32 and lower frame 33; Said upper side frame 31, middle frame 32 and lower frame 33 are fixed on the back side of ultra material dull and stereotyped 100 respectively through bolt LS4, said upper side frame 31, middle frame 32 and lower frame 33 are fixed on the feed pole 2 through upper holder SJ, Connection Block 4 and lower fixed frame XJ respectively.

In the present embodiment, also be provided with angle dial KD on the side of said hinged seat 5, so that the adjusting reading at the reflecting plate elevation angle, promptly the elevation angle can directly read out from scale, the Installation and Debugging of convenient antenna.

The azimuth adjustment of ultra material dull and stereotyped 100 is specific as follows:

At first, the LS3 that loosers a bolt, then locking has been removed in articulated joint 6, can relative adjustment bar 7 movable (adjusting rod 7 is to be fixed on the metope) freely; Turn to correct position, promptly the azimuth of antenna is also debugged and is finished, the LS3 that tights a bolt once more, and then reflecting plate will be accomplished azimuthal adjusting towards selected communication satellite.

After adjust at the azimuth, just can regulate the elevation angle.

The elevation angle of ultra material dull and stereotyped 100 is regulated specific as follows:

At first, outside locking nut LM2 (promptly removing the angle locking of reflecting plate);

Rotate dull and stereotyped 100 (clockwise or counterclockwise) of ultra material; Dull and stereotyped 100 meetings of ultra material this moment are rotated around the first screw rod LG1, by the time the appropriate location, inside once more rotational lock nut LM2 (promptly locking the angle of reflecting plate); The appropriate location here is meant; The elevation angle of reflecting plate just equal the satellite that will communicate by letter at the elevation angle in this geographical position (this angle can directly be read on angle dial KD), the elevation angle that has promptly reached reflecting plate is regulated, and has realized that promptly the elevation angle of antenna is regulated.

The antenna azimuth and the elevation angle be adjusted to this area antenna adjustment method commonly used, the present invention no longer details.

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 (10)

1. ultra material satellite antenna; It is characterized in that; Said ultra material satellite antenna comprises that the ultra material that is arranged on the signal transceiver rear is dull and stereotyped and will surpass the material flat board and is fixedly mounted on the antenna mount pad on the metope; The reflecting plate on surface after said ultra material flat board comprises core layer and is arranged on core layer; Said core layer comprises 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, and said each artificial micro-structural comprises many from outside spiral extension of a central point and mutually disjoint helix; Said core layer refractive index on normal direction remains unchanged; Front surface with core layer is the XY plane; On plane, core layer front surface place, be projected as origin of coordinates O with the signal transceiver equivalent point; Set up the two-dimensional coordinate system of XOY, said core layer front surface any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\&times;\sin \mathrm{\&gamma;}-(s+\mathrm{k\&lambda;})}{D};$

s＝2z _o?cosγ；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\&times;\sin \mathrm{\&gamma;}-2z_o\cos \mathrm{\&gamma;}}{\mathrm{\&lambda;}}\right\};$

$D=\frac{\mathrm{\&lambda;}}{2(n_{\max }-n_{\min })};$

Wherein, n _{(x, y)}Expression core layer front surface any point (x, refractive index y);

z _oExpression signal transceiver equivalent point is to the vertical range of core layer front surface;

y _oThe y coordinate figure of intersection point of representing front surface edge and the y axle positive direction of this core layer;

When γ expression signal transceiver was used as emission, the electromagnetic wave of its emission was through behind the ultra material flat board, and the angle that the plane electromagnetic wave of outgoing is become with the core layer normal direction, γ are not equal to zero;

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 pairing electromagnetic wavelength of the centre frequency of ultra material satellite antenna;

D is the thickness of core layer;

Floor representes to round downwards.

2. ultra material satellite antenna according to claim 1 is characterized in that, each bar helix of said each artificial micro-structural outwards is clockwise or counterclockwise spiral from said central point.

3. ultra material satellite antenna according to claim 1 is characterized in that, said each artificial micro-structural comprises many spiral broken lines.

4. ultra material satellite antenna according to claim 3 is characterized in that, said each bar spiral broken line forms the right angle in the position of bending.

5. ultra material satellite antenna according to claim 1 is characterized in that said helix is a metal wire.

6. ultra material satellite antenna according to claim 1; It is characterized in that; Said ultra material satellite antenna also comprises the diaphragm that covers on the artificial micro-structural, and 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 is characterized in that 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.

8. ultra material satellite antenna according to claim 7 is characterized in that 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.

9. 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.

10. a satellite receiving system comprises satellite antenna, signal transceiver, DVB, it is characterized in that, said satellite antenna is any described ultra material satellite antenna of claim 1 to 9, and said satellite antenna set is at the rear of signal transceiver.

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