CN102683820B - Metamaterial satellite antenna and satellite antenna receiving system - Google Patents
Metamaterial satellite antenna and satellite antenna receiving system Download PDFInfo
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- CN102683820B CN102683820B CN201210133041.9A CN201210133041A CN102683820B CN 102683820 B CN102683820 B CN 102683820B CN 201210133041 A CN201210133041 A CN 201210133041A CN 102683820 B CN102683820 B CN 102683820B
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Abstract
The invention discloses a metamaterial satellite antenna which comprises a signal receiver and a metamaterial flat plate. The metamaterial flat plate is fixed on a wall through a support. The metamaterial flat plate comprises a core layer and a grid-shaped reflecting plate arranged on the rear surface of the core layer. The core layer comprises a substrate and a plurality of artificial microstructures attached to the front surface of the substrate. The grid-shaped reflecting plate is attached to the rear surface of the substrate so that electromagnetic wave transmitted by the satellite converges in the signal receiver after being responded by the metamaterial flat plate. In addition, the sheet-shaped metamaterial flat plate replaces a traditional parabolic antenna, and therefore manufacture and machining are easy, and cost is low. Furthermore, the overall thickness of the metamaterial flat plate is in a millimeter level, and the metamaterial flat plate is thin and light. The invention further provides a satellite receiving system.
Description
Technical field
The present invention relates to communication technical field, more particularly, relate to a kind of meta-material satellite antenna and satellite antenna receiving system.
Background technology
Existing satellite antenna, such as satellite television receiving antenna, usually adopt traditional reflector antenna to be generally parabolic antenna, parabolic antenna is responsible for the signal reflex received to the signal receiver being positioned at focus place.
When receiving from the electromagnetic wave signal that satellite transmits, parallel electromagnetic wave is (because the distance of satellite and the earth is quite far away, its electromagnetic wave sent arrive ground time can think plane wave) reflected by parabolic antenna after, converge on signal receiver.
But the Machining of Curved Surface difficulty of the reflecting surface of parabolic antenna is large, 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, for the processing of existing satellite antenna not easily, defect that cost is high, provide a kind of and process meta-material satellite antenna that is simple, low cost of manufacture.
The technical solution adopted for the present invention to solve the technical problems is, provides a kind of meta-material satellite antenna, and described meta-material satellite antenna comprises signal receiver and metamaterial flat, and described metamaterial board is fixed on wall by support; Described metamaterial flat comprises single-layer core layer and is arranged on the reflecting plate of core layer rear surface, described core layer comprises substrate and is attached to multiple man-made microstructure of substrate front surface, described substrate rear surface is attached with described reflecting plate, and the refraction index profile of described single-layer core layer meets following formula:
Wherein, n (r) represents that in core layer, radius is the refractive index value at r place, and the refraction index profile center of circle of core layer is the projection of signal receiver equivalent point in core layer place plane;
S is the vertical range of signal receiver equivalent point to core layer;
N
maxrepresent the maximum of the refractive index of core layer;
N
minrepresent the minimum value of the refractive index of core layer;
λ represents that frequency is the electromagnetic wavelength of center of antenna frequency;
Floor represents and rounds downwards.
Further, described meta-material satellite antenna also comprises the diaphragm covered in man-made microstructure.
Further, described diaphragm is PS plastics, PET or HIPS plastic, and the thickness of described diaphragm is 0.1-2mm.
Further, the thickness of described core layer is 0.11-2.5mm, and wherein, the thickness of substrate is 0.1-2mm, and the thickness of multiple man-made microstructure is 0.01-0.5mm.
Further, the thickness of described core layer is 1.036mm, and wherein, the thickness of substrate is 1.018mm, and the thickness of multiple man-made microstructure is 0.018mm.
Further, described man-made microstructure is the metal micro structure be made up of copper cash or silver-colored line, described metal micro structure by etching, plating, bore quarters, photoetching, electronics carve or ion carve method adhere on the substrate.
Further, described metal micro structure is plane flakes, described metal micro structure has the first metal wire and the second metal wire mutually vertically divided equally, described first metal wire is identical with the length of the second metal wire, described first metal wire two ends are connected with two the first metal branch of equal length, described first metal wire two ends are connected on the mid point of two the first metal branch, described second metal wire two ends are connected with two the second metal branch of equal length, described second metal wire two ends are connected on the mid point of two the second metal branch, described first metal branch is equal with the length of the second metal branch.
Further, each first metal branch of the alabastrine metal micro structure of described plane and the two ends of each second metal branch are also connected with identical 3rd metal branch, and the mid point of corresponding 3rd metal branch is connected 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 of described plane and the second metal wire are provided with two kinks, and the alabastrine metal micro structure of described plane all overlaps with former figure to the figure of any direction 90-degree rotation with the intersection point of the second metal wire around the first metal wire in plane residing for metal micro structure.
According to meta-material satellite antenna of the present invention, by the refraction index profile of careful design core layer, the electromagnetic wave of coming from satellite launch is made to converge at signal receiver after flat metamaterial board response; In addition, replace traditional parabolic antenna by the metamaterial flat of sheet, manufacture processing and be more prone to, cost is cheaper, and the metamaterial flat integral thickness designed according to this is in addition in millimeter rank, and suitable is frivolous.
The present invention also provides a kind of satellite receiving system, comprises the satellite receiver of satellite antenna, connection signal receiver, and described satellite antenna is above-mentioned meta-material satellite antenna.
Accompanying drawing explanation
Fig. 1 is the structural representation of meta-material satellite antenna of the present invention;
Fig. 2 is the structural representation of core layer of the present invention;
Fig. 3 is the schematic diagram of one of them metamaterial unit of core layer of the present invention;
Fig. 4 is the schematic diagram of the alabastrine metal micro structure of plane of the present invention;
Fig. 5 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 4;
Fig. 6 is a kind of distressed structure of the alabastrine metal micro structure of plane shown in Fig. 4.
Fig. 7 is the first stage of the differentiation of the topology of the alabastrine metal micro structure of plane;
Fig. 8 is the second stage of the differentiation of the topology of the alabastrine metal micro structure of plane;
Fig. 9 is the structural representation of the satellite receiving system of an embodiment of the present invention;
Figure 10 is another visual angle figure of Fig. 9.
Embodiment
As shown in Figure 1 to Figure 3, meta-material satellite antenna according to the present invention comprises signal receiver 1 and is arranged on the metamaterial flat 100 at signal receiver 1 rear, and described metamaterial flat 100 is fixed on wall by support.Described metamaterial flat 100 core layer 10 and be arranged on the reflecting plate 200 of core layer rear surface, described core layer 10 comprises substrate 13 and is attached to multiple man-made microstructure 12 of substrate 13 front surface, described substrate 13 rear surface is attached with described reflecting plate 200, the axis Z2 of signal receiver 1 axis Z1 and metamaterial flat 100 plane has certain angle theta, the angle (Z3 is the parallel lines of Z1) of the axis Z1 namely in Fig. 1 and straight line Z3, signal receiver 1 on the axis Z2 of metamaterial flat plane, does not realize the offset-fed of antenna.In addition, in the present invention, reflecting plate is the metallic reflection plate with smooth surface, and can be such as the copper coin of polishing, aluminium sheet or iron plate etc., may also be PEC (perfect electric conductor) reflecting surface, can certainly be metal coating.In the present invention, the described arbitrary longitudinal section of metamaterial flat 100 is of similar shape and area, and longitudinal section herein refers to section vertical with the axis of metamaterial flat in metamaterial flat.The longitudinal section of described metamaterial flat is square, circular or oval, preferably, the longitudinal section of described metamaterial flat is square, and the metamaterial flat obtained so is easily processed, the square of such as 300X300mm or 450X450mm, the rectangle of 450X475mm.The circle of circle can be diameter be 250,300 or 450mm.
In the present invention, the refraction index profile of described core layer meets following formula:
Wherein, n (r) represents that in core layer, radius is the refractive index value at r place; The refraction index profile center of circle O1 of core layer is the projection of signal receiver equivalent point X in this core layer outer surface place plane, at a distance of sy, (sy is timing, represents that center of circle O1 is in the outside of this core layer in the lower edge of described center of circle O1 and this core layer; Sy, for time negative, represents that center of circle O1 is in this core layer), more preferably, when core layer is square, the lower edge of center of circle O1 and line this core layer vertical of the lower edge mid point of this core layer; When core layer is circular, the line on the summit, lower edge of center of circle O1 and this core layer is on the radius of circle; When core layer is oval, on the major axis of the ellipse on the summit, lower edge of center of circle O1 and this core layer.
S is the vertical range of signal receiver 1 equivalent point X to Meta Materials plane-reflector; In fact the equivalent point X of signal receiver 1 is exactly the feedback point (point focused on occurs electromagnetic wave in signal receiver 1) of antenna herein; When the angle theta of the axis Z2 of signal receiver 1 axis Z1 and panel metamaterial 3 changes, also can there is slight change in s.
The relative position of signal receiver equivalent point X and panel metamaterial is by s, θ and sy determines jointly, usually, signal receiver 1 equivalent point X is selected on the Z1 of signal receiver axis, the position of signal receiver 1 equivalent point X is relevant with the bore of signal receiver 1, can be such as and the position (ds be X point in Fig. 1 distance to Y point) of signal receiver 1 bore mid point Y at a distance of ds, as an embodiment, described ds equals 5mm, in fact in the design, ds and θ is relevant, along with the difference of θ, signal receiver 1 equivalent point X position is also different, namely ds is different, but, signal receiver 1 equivalent point is still on signal receiver 1 axis Z1.
N
maxrepresent the maximum of the refractive index of core layer;
N
minrepresent the minimum value of the refractive index of core layer;
λ represents that frequency is the electromagnetic wavelength of center of antenna frequency;
D is the equivalent thickness of core layer.
Floor represents and rounds downwards, such as, when
be more than or equal to 0 when being less than 1, NUMseg gets 0, when
be more than or equal to 1 when being less than 2, NUMseg gets 1, and the rest may be inferred.
As shown in Figure 2, in order to substrate in clearly displaing core layer 13 and the relation of man-made microstructure 12, the layer at man-made microstructure 12 place represents with hatching, and we are referred to as man-made microstructure layer 120, and namely man-made microstructure layer 120 is made up of all man-made microstructure that substrate adheres to.
By formula (1) to formula (4) determined metamaterial flat, the plane wave that antenna can be made to receive can converge at signal receiver equivalent point X place after metamaterial flat.Certainly, when receiving satellite antenna signals, the normal direction of panel metamaterial is towards the satellite that will receive, as for the satellite how making the normal direction of panel metamaterial towards wanted Received signal strength, then relate to the problem of traditional satellite antenna debugging, namely about the adjustment of antenna azimuth and the angle of pitch, it is common practise, repeats no more herein.
In addition, in the present invention, preferably; described meta-material satellite antenna also comprises the diaphragm covered in man-made microstructure 12, and diaphragm hides man-made microstructure layer 120 completely, can protect like this to man-made microstructure; meanwhile, the mechanical performance of metamaterial flat can also be strengthened.In the present invention, described diaphragm can be PS plastics (polystyrene plastics), PET (poly terephthalic acid class plastics) or HIPS plastic (impact resistant polystyrene).
In the present invention, the thickness of described diaphragm is 0.1-2mm, and concrete thickness determines in conjunction with wave penetrate capability and mechanical performance, such as, can be 1mm.
In the present invention, preferably, the thickness of described core layer is 0.11-2.5mm, and wherein, the thickness of substrate is 0.1-2mm, and the thickness of multiple man-made microstructure is 0.01-0.5mm, and namely the thickness of man-made microstructure layer is 0.01-0.5mm.As a concrete example, the thickness of described core layer is 1.036mm, and wherein, the thickness of substrate is 1.018mm, and the thickness of multiple man-made microstructure is 0.018mm.
Meta-material satellite antenna of the present invention is when using as transmitting antenna, and namely signal receiver is as radiation source, the effect of metamaterial flat be plane wave that signal receiver is sent after metamaterial flat with the form outgoing of plane wave.
Meta-material satellite antenna of the present invention is when using as reception antenna, namely signal receiver is as wave collecting device, and the effect of metamaterial flat is that the plane wave (incident with the direction in Fig. 1) that antenna can be made to receive can converge at signal receiver equivalent point X place after metamaterial flat.
In the present invention, described man-made microstructure is the metal micro structure be made up of copper cash or silver-colored line, described metal micro structure by etching, plating, bore quarters, photoetching, electronics carve or ion quarter method adhere to respectively on the substrate.Preferably, described man-made microstructure to develop the metal micro structure of the multiple different topology obtained for the alabastrine metal micro structure of the plane shown in Fig. 4 by topology.
In the present invention, core layer can obtain by the following method, namely on any one surface of substrate, cover copper, then obtain multiple metal micro structure (shape of multiple metal micro structure and its arrangement on substrate are obtained by Computer Simulation in advance) by etching method.
Namely core layer, reflecting plate pressing one are obtained metamaterial flat of the present invention.
In the present invention, described substrate is obtained by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material etc.Macromolecular material is available F4B composite material, FR-4 composite material, PS (polystyrene) etc.
Figure 4 shows that the schematic diagram of the alabastrine metal micro structure of plane, described alabastrine metal micro structure has the first metal wire J1 and the second metal wire J2 that mutually vertically divide equally, described first metal wire J1 is identical with the length of the second metal wire J2, described first metal wire J1 two ends are connected with two the first metal branch F1 of equal length, described first metal wire J1 two ends are connected on the mid point of two the first metal branch F1, described second metal wire J2 two ends are connected with two the second metal branch F2 of equal length, described second metal wire J2 two ends are connected on the mid point of two the second metal branch F2, described first metal branch F1 is equal with the length of the second metal branch F2.
Fig. 5 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 4.It is all connected with identical 3rd metal branch F3 at the two ends of each first metal branch F1 and each second metal branch F2, and the mid point of corresponding 3rd metal branch F3 is connected with the end points of the first metal branch F1 and the second metal branch F2 respectively.The rest may be inferred, and the present invention can also derive the metal micro structure of other form.
Fig. 6 is a kind of distressed structure of the alabastrine metal micro structure of plane shown in Fig. 4, the metal micro structure of this kind of structure, first metal wire J1 and the second metal wire J2 is not straight line, but folding line, first metal wire J1 and the second metal wire J2 is provided with two kink WZ, but the first metal wire J1 remains vertical with the second metal wire J2 to be divided equally, by arrange kink towards with the relative position of kink on the first metal wire and the second metal wire, metal micro structure shown in Fig. 7 is all overlapped with former figure to the figure of any direction 90-degree rotation around the axis perpendicular to the first metal wire and the second metal wire intersection point.In addition, other can also be had to be out of shape, such as, the first metal wire J1 and the second metal wire J2 all arranges multiple kink WZ.
In the present invention, described core layer 11 can be divided into multiple metamaterial unit D as shown in Figure 2 of array arrangement, each metamaterial unit D comprises base board unit U and is attached to the man-made microstructure 12 on base board unit U, the length, width and height of usual metamaterial unit D are all not more than 1/5th wavelength, be preferably 1/10th wavelength, therefore, the size of metamaterial unit D can be determined according to the operating frequency of antenna.As shown in Figure 2, described man-made microstructure is attached to the SR surface of base board unit U.
Known refractive index
wherein μ is relative permeability, and ε is relative dielectric constant, and μ and ε is collectively referred to as electromagnetic parameter.Experiment proves, when electromagnetic wave is by refractive index dielectric material heterogeneous, and can to the large direction deviation of refractive index.When relative permeability is certain (usually close to 1), refractive index is only relevant with dielectric constant, when substrate is selected, utilize the arbitrary value (within the specific limits) that only can realize metamaterial unit refractive index to the man-made microstructure of electric field response, under this center of antenna frequency, utilize simulation software, as CST, MATLAB, COMSOL etc., the situation that the dielectric constant being obtained the man-made microstructure (the alabastrine metal micro structure of plane as shown in Figure 4) of a certain given shape by emulation is changed along with the refractive index variable of topology, data one to one can be listed, the core layer 10 of the specific refractive index distribution that we need can be designed.
In the present invention, the structural design of core layer obtains by Computer Simulation (CST emulation), specific as follows:
(1) attaching substrates of metal micro structure is determined.Such as dielectric constant is the medium substrate of 2.7, and the material of medium substrate can be FR-4, F4b or PS.
(2) size of metamaterial unit is determined.The size of the size of metamaterial unit is obtained by the centre frequency of antenna, utilizes frequency to obtain its wavelength, then get be less than wavelength 1/5th a numerical value as the length CD of metamaterial unit D and width KD.Such as, corresponding to the centre frequency of 11.95G, described metamaterial unit D can be long CD as shown in Figure 2 and wide KD is 2.8mm, thickness HD is 1.036mm square platelet.
(3) material and the topological structure of metal micro structure is determined.In the present invention, the material of metal micro structure is copper, and the topological structure of metal micro structure is the alabastrine metal micro structure of the plane shown in Fig. 4, and its live width W is consistent everywhere; Topological structure herein, refers to the basic configuration that topology develops.
(4) the topology parameter of metal micro structure is determined.As shown in Figure 4, in the present invention, the topology parameter of the alabastrine metal micro structure of plane comprises the live width W of metal micro structure, the length a of the first metal wire J1, the length b of the first metal branch F1.
(5) the differentiation restrictive condition of the topology of metal micro structure is determined.In the present invention, the differentiation restrictive condition of the topology of metal micro structure has, the minimum spacing WL (namely as shown in Figure 4, the long limit of metal micro structure and metamaterial unit or the distance of broadside are WL/2) between metal micro structure, the live width W of metal micro structure, the size of metamaterial unit; Due to processing technology restriction, WL is more than or equal to 0.1mm, and equally, live width W is greater than to equal 0.1mm.First time, when emulating, WL can get 0.1mm, and W can get 0.3mm, and it is 2.8mm that metamaterial unit is of a size of long and wide, and thickness is 1.018mm, and now the topology parameter of metal micro structure only has a and b Two Variables.The topology of metal micro structure, by the differentiation mode as shown in Fig. 7 to Fig. 8, corresponding to a certain characteristic frequency (such as 11.95GHZ), can obtain a continuous print variations in refractive index scope.
Particularly, the differentiation of the topology of described metal micro structure comprises two stages (basic configuration that topology develops is the metal micro structure shown in Fig. 4):
First stage: according to differentiation restrictive condition, when b value remains unchanged, a value is changed to maximum from minimum value, the metal micro structure in this evolution process is " ten " font when minimum value (a get except).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 first phase, the differentiation of the topology of metal micro structure as shown in Figure 7, is namely the square JX1 of W from the length of side, develops into maximum " ten " font topology JD1 gradually.In the first phase, along with the differentiation of the topology of metal micro structure, the refractive index of the metamaterial unit corresponding with it increases (respective antenna one characteristic frequency) continuously.
Second stage: according to differentiation restrictive condition, when a is increased to maximum, a remains unchanged; Now, b is increased continuously maximum from minimum value, the metal micro structure in this evolution process is 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 as shown in Figure 8, namely from maximum " ten " font topology JD1, develop into the alabastrine topology JD2 of maximum plane gradually, the alabastrine topology JD2 of maximum plane herein refers to, the length b of the first metal branch J1 and the second metal branch J2 can not extend again, otherwise the first metal branch is crossing by generation with the second metal branch.In second stage, along with the differentiation of the topology of metal micro structure, the refractive index of the metamaterial unit corresponding with it increases (respective antenna one characteristic frequency) continuously.
If the variations in refractive index scope being obtained metamaterial unit by above-mentioned differentiation contains n
minto n
maxconsecutive variations scope, then meet design needs.If the variations in refractive index scope that above-mentioned differentiation obtains metamaterial unit does not meet design needs, such as maximum is too little or minimum value is excessive, then change WL and W, again emulate, until obtain the variations in refractive index scope of our needs.
According to formula (1) to (4), a series of metamaterial unit emulation obtained, according to after the refractive index arrangement of its correspondence (being in fact exactly the arrangement of multiple man-made microstructure on substrate of different topology shape), can obtain core layer of the present invention.
Described meta-material satellite antenna described above 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, described meta-material satellite antenna of the present invention can also substitute other various reflector antenna.
In addition, as shown in FIG. 9 and 10, the present invention also provides and present invention also offers a kind of satellite receiving system, comprise the satellite receiver (not indicating in figure) of satellite antenna, signal receiver 1, connection signal receiver 1, described satellite antenna is the above-mentioned meta-material satellite antenna of the present invention.In the present invention, described signal receiver 1 is traditional corrugated horn.Satellite receiver such as can adopt the N6188 of Tongzhou Electronics, and for receiving the satellite TV signal of No. 9, culminant star, it is existing technology, no longer states herein.
Metamaterial board support in Fig. 9 and Figure 10 is an optimal way of metamaterial board support of the present invention, and it comprises framework 3 and the metamaterial flat angle regulating device of fixing metamaterial flat 100; Described reflecting plate adjusting device comprise the Connection Block 4 be fixedly connected with frame 3 and signal receiver pole 2, the hinged seat 5 be fixed on Connection Block 4, with the rotating articulated joint 6 be connected of hinged seat 5 and the adjusting rod 7 removably connected with articulated joint 6.
In the present embodiment, described articulated joint 6 is placed in hinged seat 5, articulated joint 6 realizes rotating be connected by 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, described reflecting plate adjusting device also comprises the second screw rod LG2 running 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, described adjusting rod 7 is connected by locking device is dismountable with articulated joint 6, described adjusting rod 7 is round bar, described locking device comprises the latch SJB being close to the circular arc that adjusting rod 7 outer surface is arranged and the upper locking flange STY be oppositely arranged with latch SJB and lower locking flange XTY, the outward flange of described upper locking flange STY and lower locking flange XTY is arc-shaped, the outside of described upper locking flange STY and lower locking flange XTY is all close on the outer surface of adjusting rod 7, the both sides of latch SJB are threaded with articulated joint 6 by bolt LS3, the position that described upper locking flange STY and lower locking flange XTY contacts with adjusting rod 7 is arranged offers the equally distributed anti-slop serrations (not shown) of energy.
In the present embodiment, described antenna mounting seat also comprise be connected to adjusting rod 7 other end meet wallboard QB, described in meet strong plate QB and can be fixed to (as wall in the south) on the metope in house, be such as fixed on metope by plain screw or tapping screw.
In the present embodiment, described framework 3 comprises upper side frame 31, middle frame 32 and lower frame 33, described upper side frame 31, middle frame 32 and lower frame 33 are fixed on the back side of metamaterial flat 100 respectively by bolt LS4, and described upper side frame 31, middle frame 32 and lower frame 33 are fixed on feed pole 2 respectively by upper holder SJ, Connection Block 4 and lower fixed frame XJ.
In the present embodiment, a side of described hinged seat 5 is also provided with angle dial KD, so that the adjustment reading at the reflecting plate elevation angle, namely the elevation angle can directly read out from scale, the Installation and Debugging of convenient antenna.
The azimuth adjustment of metamaterial flat 100 is specific as follows:
First, looser a bolt LS3, then articulated joint 6 relieves locking, can relative adjustment bar 7 freely movable (adjusting rod 7 is fixed on metope); Turn to correct position, namely the azimuth of antenna is also debugged complete, and tight a bolt LS3 again, then reflecting plate is by towards selected communication satellite, completes azimuthal adjustment.
After azimuth is adjusted, just the elevation angle can be regulated.
The elevation angle of metamaterial flat 100 regulates specific as follows:
First, outside locking nut LM2 (namely removing the angle locking of reflecting plate);
Rotate metamaterial flat 100 (clockwise or counterclockwise), now metamaterial flat 100 can be rotated around the first screw rod LG1, until appropriate location, inside rotational lock nut LM2 (namely locking the angle of reflecting plate) again, appropriate location herein refers to, the elevation angle of reflecting plate just equals the satellite that will the communicate elevation angle (this angle directly can read on angle dial KD) in this geographical position, namely the elevation angle reaching reflecting plate regulates, and the elevation angle namely achieving antenna regulates.
Antenna azimuth and the elevation angle be adjusted to the conventional antenna debugging method in this area, the present invention no longer describes in detail.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1. a meta-material satellite antenna, is characterized in that: described meta-material satellite antenna comprises signal receiver and metamaterial flat, and described metamaterial flat is fixed on wall by support; Described metamaterial flat comprises single-layer core layer and is arranged on the reflecting plate of core layer back to the surface of described signal receiver, described core layer comprises substrate and is attached to multiple man-made microstructure of substrate front surface, described substrate rear surface is attached with described reflecting plate, and the refraction index profile of described single-layer core layer meets following formula:
Vseg＝s+λ×NUMseg；
Wherein, n (r) represents that in core layer, radius is the refractive index value at r place, and the refraction index profile center of circle of core layer is the projection of signal receiver equivalent point in core layer place plane;
S is the vertical range of signal receiver equivalent point to core layer, and electromagnetic wave focuses at described signal receiver equivalent point;
N
maxrepresent the maximum of the refractive index of core layer;
N
minrepresent the minimum value of the refractive index of core layer;
λ represents that frequency is the electromagnetic wavelength of center of antenna frequency;
Floor represents and rounds downwards.
2. meta-material satellite antenna according to claim 1, is characterized in that, described meta-material satellite antenna also comprises the diaphragm covered in man-made microstructure.
3. meta-material satellite antenna according to claim 2, is characterized in that, described diaphragm is PS plastics, PET or HIPS plastic, and the thickness of described diaphragm is 0.1-2mm.
4. meta-material satellite antenna according to claim 1, is characterized in that, the thickness of described core layer is 0.11-2.5mm, and wherein, the thickness of substrate is 0.1-2mm, and the thickness of multiple man-made microstructure is 0.01-0.5mm.
5. meta-material satellite antenna according to claim 4, is characterized in that, the thickness of described core layer is 1.036mm, and wherein, the thickness of substrate is 1.018mm, and the thickness of multiple man-made microstructure is 0.018mm.
6. meta-material satellite antenna according to claim 1, it is characterized in that, described man-made microstructure is the metal micro structure be made up of copper cash or silver-colored line, described metal micro structure by etching, plating, bore quarters, photoetching, electronics carve or ion carve method adhere on the substrate.
7. meta-material satellite antenna according to claim 6, it is characterized in that, described metal micro structure is plane flakes, described metal micro structure has the first metal wire and the second metal wire mutually vertically divided equally, described first metal wire is identical with the length of the second metal wire, described first metal wire two ends are connected with two the first metal branch of equal length, described first metal wire two ends are connected on the mid point of two the first metal branch, described second metal wire two ends are connected with two the second metal branch of equal length, described second metal wire two ends are connected on the mid point of two the second metal branch, described first metal branch is equal with the length of the second metal branch.
8. meta-material satellite antenna according to claim 7, it is characterized in that, each first metal branch of the alabastrine metal micro structure of described plane and the two ends of each second metal branch are also connected with identical 3rd metal branch, and the mid point of corresponding 3rd metal branch is connected with the end points of the first metal branch and the second metal branch respectively.
9. meta-material satellite antenna according to claim 7, it is characterized in that, first metal wire of the alabastrine metal micro structure of described plane and the second metal wire are provided with two kinks, and the alabastrine metal micro structure of described plane all overlaps with former figure to the figure of any direction 90-degree rotation with the intersection point of the second metal wire around the first metal wire in plane residing for metal micro structure.
10. a satellite receiving system, comprises the satellite receiver of satellite antenna, connection signal receiver, it is characterized in that, described satellite antenna is the meta-material satellite antenna described in claim 1 to 9 any one.
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| CN201210133041.9A CN102683820B (en) | 2012-04-28 | 2012-04-28 | Metamaterial satellite antenna and satellite antenna receiving system |
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| JP2006101117A (en) * | 2004-09-29 | 2006-04-13 | Nippon Hoso Kyokai <Nhk> | Uhf antenna and satellite receiving antenna |
| CN101162800A (en) * | 2006-10-10 | 2008-04-16 | 西北工业大学 | Mobile phone antenna medium substrates with anti-symmetric structure left hand material |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| CN101867094A (en) * | 2010-05-02 | 2010-10-20 | 兰州大学 | Focusing panel antenna |
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| US7570432B1 (en) * | 2008-02-07 | 2009-08-04 | Toyota Motor Engineering & Manufacturing North America, Inc. | Metamaterial gradient index lens |
| ES2561661T3 (en) * | 2009-10-22 | 2016-02-29 | Lockheed Martin Corporation | Metamaterial lens feed for multi-beam antennas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101117A (en) * | 2004-09-29 | 2006-04-13 | Nippon Hoso Kyokai <Nhk> | Uhf antenna and satellite receiving antenna |
| CN101162800A (en) * | 2006-10-10 | 2008-04-16 | 西北工业大学 | Mobile phone antenna medium substrates with anti-symmetric structure left hand material |
| CN101699659A (en) * | 2009-11-04 | 2010-04-28 | 东南大学 | Lens antenna |
| CN101867094A (en) * | 2010-05-02 | 2010-10-20 | 兰州大学 | Focusing panel antenna |
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| CN102683820A (en) | 2012-09-19 |
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