CN103367870B - Logical satellite antenna during one is quiet - Google Patents

Abstract

The invention discloses a kind of quiet in logical satellite antenna, including being arranged on mobile vehicle end face and the metamaterial flat of parallel water plane and being arranged on the feed in mobile vehicle inner space, described metamaterial flat can be at himself residing rotation with in surface under the control of servosystem, described feed carries out optimum signal scanning under the control of servosystem, described metamaterial flat includes core layer, described core layer includes a core layer or multiple identical core layer, the first base material that each core layer includes lamellar and multiple first man-made microstructure being arranged on the first base material, index distribution by careful design metamaterial flat, the plane wave making special angle can converge after metamaterial flat at feed.According to the present invention quiet in logical satellite antenna, the metamaterial flat of lamellar replace traditional parabola antenna, manufacture processing and be more prone to, cost is cheaper.

Description

Logical satellite antenna during one is quiet

Technical field

The present invention relates to the communications field, more particularly, it relates to logical satellite antenna during one is quiet.

Background technology

Communication in moving is the abbreviation of " the ground satellite station communication system in Yi Dong ".By communication in moving system, vehicle, steamer, The carrier of the movements such as aircraft in motor process can the platform such as real-time tracking satellite, transmit voice, data, image etc. incessantly Multimedia messages, can meet the needs of multimedia communication under various military-civil emergency communication and mobile condition.Communication in moving system Solve the mobile vehicles such as various vehicle, steamer well at the volley by geostationary satellite, the most constantly transmit language The difficulty of the multimedia messages such as sound, data, the dynamic video image of high-resolution, fax, is the most great the dashing forward of the communications field Application that is broken, that be that the present satellites communications field is in great demand, quickly grow, has extremely wide in two fields of the army and the people Development prospect.

Communication in moving system is capable of mobile vehicle real-time Communication for Power under any kinestate；But it is relatively costly, Control the most complicated, it addition, in some cases, it is not necessary to the real-time Communication for Power under any state of mobile vehicle.

Quiet middle way system can solve problem above, and so-called quiet middle way system refers to can automatic seeking in fixing place The satellite communication earth station antenna system of star.Be applicable to drive the traveller in countryside, military system field work vehicle and Relevant departments' field work car (such as fire fighting command car), the live satellite of such as fixed location is live.

Quiet middle way system quiet in logical satellite antenna as an important component part of quiet middle way system, be responsible for satellite and lead to The letter reception of signal and/or transmission, traditional quiet in exceedingly high line typically use parabola antenna.

But, owing to the Machining of Curved Surface difficulty of the reflecting surface of parabola antenna is big, required precision is the highest, therefore, manufactures fiber crops Tired and relatively costly.

Summary of the invention

The technical problem to be solved is, for existing quiet in logical satellite antenna processing be difficult to, cost high Defect, it is provided that a kind of process simple, low cost of manufacture quiet in logical satellite antenna.

The technical solution adopted for the present invention to solve the technical problems is: a kind of quiet in logical satellite antenna, described quiet in logical Satellite antenna includes being arranged on mobile vehicle end face and the metamaterial flat of parallel water plane and is arranged on mobile vehicle internal empty Feed between, described metamaterial flat can be in himself residing rotation with in surface, described feedback under the control of servosystem Source carries out optimum signal scanning under the control of servosystem, and described metamaterial flat includes that core layer, described core layer include One core layer or multiple identical core layer, each core layer includes the first base material of lamellar and sets Put multiple first man-made microstructure on the first base material, in working order under, with the lower surface of arbitrary core layer as XY Plane, with feed equivalent point this core layer lower surface in the plane be projected as zero O, set up the two of XOY Dimension coordinate system, described core layer any point (x, refractive index y) meets equation below:

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

S=y_o×cosγ+z_o×sinγ；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\cos \mathrm{\γ}-(y_o\×\cos \mathrm{\γ}+z_o\×\sin \mathrm{\γ})}{\mathrm{\λ}}\right\};$

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

Wherein,

n_{(x, y)}Represent this core layer any point (x, refractive index value y)；

z_oRepresent the feed equivalent point vertical dimension to metamaterial flat lower surface；

y_oRepresent the y-coordinate value of the lower surface edge of this core layer and the intersection point of y-axis positive direction；

γ represents the elevation angle of satellite to be communicated；

n_maxRepresent the maximum of the refractive index of core layer；

n_minRepresent the minima of the refractive index of core layer；

λ represents the wavelength of the electromagnetic wave that frequency is center of antenna frequency；

D is the thickness of metamaterial flat；

Floor represents and rounds downwards.

Further, the thickness of described core layer is Dh, Dh=D.

Further, described first base material includes the first prebasal plate and first metacoxal plate of lamellar, the plurality of the first Making micro structure to be folded between the first prebasal plate and the first metacoxal plate, the thickness of described core layer is 0.21-2.5mm, its In, the thickness of the first prebasal plate is 0.1-1mm, and the thickness of the first metacoxal plate is 0.1-1mm, the thickness of multiple first man-made microstructure Degree is 0.01-0.5mm.

Further, described metamaterial flat also includes the impedance matching layer being arranged on core layer both side surface, described resistance Anti-matching layer includes an impedance matching layer lamella or the identical impedance matching layer lamella of multiple thickness, described impedance matching synusia The second base material that layer includes lamellar and multiple second man-made microstructure of being arranged on the second base material, the one or more resistance The index distribution of anti-matching layer lamella meets equation below:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\×n{\left(r\right)}^{\frac{m-i}{m}};$

Wherein, n_iR () represents that on impedance matching layer lamella, radius is the refractive index value at r, the folding of impedance matching layer lamella Penetrate the rate distribution center of circle and be the projection in corresponding impedance matching layer lamella outer surface place plane of the feed equivalent point；

Wherein, i represents the numbering of impedance matching layer lamella, near numbered the 1 of the impedance matching layer lamella of core layer, two The numbered m of limit outermost impedance matching layer lamella, is sequentially reduced to direction, both sides, numbering by core layer；

Above-mentioned n_max、n_minIdentical with the maximum of the refractive index of core layer, minima respectively.

Further, described metamaterial flat also includes the impedance matching layer being arranged on core layer both side surface, described resistance Anti-matching layer includes an impedance matching layer lamella or the identical impedance matching layer lamella of multiple thickness, described impedance matching synusia The second base material that layer includes lamellar and multiple second man-made microstructure of being arranged on the second base material, described each impedance matching Synusia layer has single refractive index, and the refractive index of the one or more impedance matching layer lamella meets below equation:

$n\left(i\right)={((n_{\max }+n_{\min })/2)}^{\frac{i}{m}};$

Wherein, m represents total number of plies of impedance matching layer, and i represents the numbering of impedance matching layer lamella, wherein, near core The numbered m of the impedance matching layer lamella of layer, is sequentially reduced to direction, both sides, numbering by core layer, the outermost impedance in both sides Numbered the 1 of matching layer lamella.

Further, the thickness of described core layer is Dh, and the thickness of the impedance matching layer of described every side is Dz, Dz+ 2Dh=D.

Further, described second base material includes the second prebasal plate and second metacoxal plate of lamellar, the plurality of second people Making micro structure to be folded between the second prebasal plate and the second metacoxal plate, the thickness of described impedance matching layer lamella is 0.21- 2.5mm, wherein, the thickness of the second prebasal plate is 0.1-1mm, and the thickness of the second metacoxal plate is 0.1-1mm, multiple second artificial micro- The thickness of structure is 0.01-0.5mm.

Further, described first man-made microstructure and the second man-made microstructure are all for the metal being made up of copper cash or silver wire Micro structure, described metal micro structure by etch, electroplate, bore the method at quarters, photoetching, electronics quarter or ion quarter and be respectively attached to the On one base material and the second base material.

Further, described metal micro structure is plane flakes, and described metal micro structure has and is mutually perpendicular to divide equally First metal wire and the second metal wire, the length of described first metal wire and the second metal wire is identical, described first metal wire two End connects two the first metal branch having equal length, and described first metal wire two ends are connected to two the first metal branch On midpoint, described second metal wire two ends connect two the second metal branch having equal length, described second metal wire two ends Being connected on the midpoint of two the second metal branch, the length of described first metal branch and the second metal branch is equal.

Further, each first metal branch and each second metal of the alabastrine metal micro structure of described plane divides Two ends be also associated with identical 3rd metal branch, the midpoint of corresponding 3rd metal branch respectively with the first metal The end points of branch and the second metal branch is connected.

Further, the first metal wire and second metal wire of the alabastrine metal micro structure of described plane is provided with two Individual kink, the alabastrine metal micro structure of described plane around the intersection point of the first metal wire and the second metal wire at metal micro structure All overlap with artwork to the figure of any direction 90-degree rotation in residing plane.

Further, the end face of described mobile vehicle offers wave transparent hole, described wave transparent hole is equiped with wave transparent plate, institute State metamaterial flat to be arranged on wave transparent plate.

Further, described wave transparent hole is circular hole, and wave transparent hole has been inwardly formed annular flange flange, and described wave transparent plate is cake Shape, the outward flange of described wave transparent plate overlaps with annular flange flange, and described metamaterial flat is round pie, and described metamaterial flat covers On wave transparent plate.

According to the present invention quiet in logical satellite antenna, by the index distribution of careful design metamaterial flat so that special The plane wave determining angle can converge after metamaterial flat at feed, the metamaterial flat of lamellar instead of traditional throwing Object plane antenna, manufactures processing and is more prone to, and cost is cheaper, and the metamaterial flat integral thickness designed the most according to this is at millimeter Rank so that during this is quiet, logical satellite antenna entirety is lighter.

Accompanying drawing explanation

Fig. 1 is the relative position view (work of the feed that in an embodiment of the present invention, metamaterial flat is corresponding State)；

Fig. 2 is the perspective diagram of one of them metamaterial unit of core layer of the present invention；

Fig. 3 is the structural representation of the core layer of the present invention；

Fig. 4 is the structural representation of the impedance matching layer lamella of the present invention；

Fig. 5 is the schematic diagram of the alabastrine metal micro structure of plane of the present invention；

Fig. 6 is a kind of derived structure of the alabastrine metal micro structure of the plane shown in Fig. 5；

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure of the plane shown in Fig. 5.

Fig. 8 is the first stage of the differentiation of the topology of the alabastrine metal micro structure of plane；

Fig. 9 is the second stage of the differentiation of the topology of the alabastrine metal micro structure of plane；

Figure 10 is the relative position view (work of the feed that in another kind embodiment of the present invention, metamaterial flat is corresponding Make state)；

Figure 11 be the present invention quiet in logical satellite antenna mounting structure schematic diagram (duty) on vehicle；

Figure 12 is the floor map of the square core layer of the present invention；

Figure 13 is the floor map of the circular core layer of the present invention；

Figure 14 be the present invention quiet in logical satellite antenna mounting structure schematic diagram on vehicle.

Detailed description of the invention

As shown in Fig. 1, Figure 11 and Figure 14, the present invention described quiet in logical satellite antenna JZT be loaded in mobile vehicle YDT The tip position of (such as vehicle, boats and ships, aircraft), it includes being arranged on mobile vehicle end face TS and the super material of parallel water plane Material flat board 100 and the feed 1 being arranged in mobile vehicle inner space, described metamaterial flat 100 is in the control of servosystem CF System is lower can be at himself residing rotation with in surface (with plane-parallel), and described feed 1 enters under the control of servosystem CF The scanning of row optimum signal (is i.e. found electromagnetic wave and is most preferably converged position).In the present invention, the end face TS of described mobile vehicle offers Having wave transparent hole TBK, be equiped with wave transparent plate TBB in described wave transparent hole TBK, described metamaterial flat 100 is arranged on wave transparent plate TBB On.Preferably, described wave transparent hole TBK is circular hole, and wave transparent hole TBK has been inwardly formed annular flange flange TY, described wave transparent plate TBB in Round pie, the outward flange of described wave transparent plate TBB and annular flange flange TY overlap, and described metamaterial flat 100 is in round pie, described super Material plates 100 covers on wave transparent plate TBB.Wave transparent plate TBB can use transparent glass, and transparent PS plate etc., as long as completely The high permeability of foot electromagnetic wave and general mechanical performance.In the present invention, described duty, refer to mobile vehicle When arriving communication locations, mobile vehicle will no longer be moved, the present invention quiet in exceedingly high line proceed by the state of satellite communication, this Shi Suoshu feed arrives optimum signal position under the control of servosystem, and (electromagnetic wave sent on selected telecommunication satellite passes through Position is most preferably converged) after metamaterial flat；The present invention quiet in state beyond logical Antenna Operation state be off working state. As shown in figure 11, illustrating for duty, now feed 1 is positioned at optimum signal position by the control of servosystem；And Off working state, feed then can be attached to car inner top under the control of servosystem, to prevent from accounting in a non-operative state Use interior space.

It addition, in order to satellite antenna JZT logical in quiet is protected (waterproof, sun-proof etc.), quiet in outside logical satellite antenna An antenna house, the most hemispheric antenna house can also cover in portion.

As shown in Figures 1 to 4, in one embodiment of the present of invention, described metamaterial flat 100 includes core layer 10, sets Putting the impedance matching layer 20 in core layer both side surface, described core layer 10 includes a core layer 11 or multiple thickness The core layer 11 that identical and index distribution is identical, described core layer includes the first base material 13 of lamellar and arranges Multiple first man-made microstructure 12 on the first base material 13, described impedance matching layer 20 includes an impedance matching layer lamella 21 Or multiple impedance matching layer lamellas 21 that thickness is identical, described impedance matching layer lamella 21 include lamellar the second base material 23 and Multiple second man-made microstructure being arranged on the second base material.In the present invention, the described arbitrary longitudinal section of metamaterial flat 100 has Identical shape and area, longitudinal section herein refers to section vertical with the axis of metamaterial flat in metamaterial flat. The longitudinal section of described metamaterial flat can be for square, it is possible to be circular or ellipse such as 300X300mm or The square of 450X450mm, or a diameter of 250,300 or the circle of 450mm.The effect of impedance matching layer is to realize from air To the impedance matching of core layer 10, to reduce the reflection of electromagnetic wave of air and Meta Materials joint, reduce the damage of electromagnetic wave energy Lose, improve satellite TV signal intensity.

As shown in Fig. 1, Figure 12 and Figure 13, the present invention quiet in logical satellite antenna in running order time, with arbitrary core The lower surface of central layer lamella is X/Y plane, with feed equivalent point X this core layer lower surface projection in the plane (the O point in Fig. 1) is zero O, sets up the two-dimensional coordinate system of XOY, it is preferable that such as, when core layer is square, and y Axle vertically divides the two edges of the metamaterial flat of its process equally；When core layer is circular, y-axis overlaps with its diameter；Core When synusia layer is oval, y-axis overlaps with its major axis；(x, refractive index y) meets following public described core layer any point Formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\cos \mathrm{\γ}-(s+\mathrm{k\λ})}{D}---\left(1\right);$

S=y_o×cosγ+z_o×sinγ (2)；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\cos \mathrm{\γ}-(y_o\×\cos \mathrm{\γ}+z_o\×\sin \mathrm{\γ})}{\mathrm{\λ}}\right\}---\left(3\right);$

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

Fig. 1 is that the plane that the axis Z1 of feed is constituted with geostationary satellite (being equivalent to a bit) to be communicated is cutd open Cut the present embodiment quiet in the metamaterial flat in logical satellite antenna and the sectional view obtained by feed two parts, namely y-axis with Plane cutting the present embodiment that feed axis is constituted quiet in metamaterial flat in logical satellite antenna and feed two parts Obtained sectional view.

Wherein, n_{(x, y)}Represent this core layer any point (x, refractive index value y)；

z_oRepresent the feed equivalent point vertical dimension to metamaterial flat；The equivalent point X of feed is actually sky herein The feed point (electromagnetic wave occurs the point focused in feed) of line；Feed axis Z1 is θ with the angle of metamaterial flat lower surface, In the present embodiment, the equivalent point X of feed is on the Z1 of feed axis, it is assumed that the equivalent point X at feed bore midpoint to feed away from From for ds, ginseng (i.e. allowing feed scan optimum position) can be become by variation ds, θ the two so that convergence effect is optimum；

y_oRepresent the y-coordinate value of the lower surface edge of this core layer and the intersection point of y-axis positive direction；As shown in figure 12, Core layer is square, y_oThe length of the O A line segment being in figure.As shown in figure 13, core layer is circular, y_oIt is The length of the O A line segment in figure.

γ represents the elevation angle of satellite to be communicated, elevation angle gamma and the longitude and latitude residing for satellite to be communicated and mobile vehicle Spend relevant；

n_maxRepresent the maximum of the refractive index of core layer；

n_minRepresent the minima of the refractive index of core layer；

λ represents the wavelength of the electromagnetic wave that frequency is center of antenna frequency；

In the present embodiment, the thickness of described core layer is Dh, and the thickness of the impedance matching layer of described every side is Dz, Dz+2Dh=D.

Floor represents and rounds downwards；

Such as, when $\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\cos \mathrm{\γ}-(y_o\×\cos \mathrm{\γ}+z_o\×\sin \mathrm{\γ})}{\mathrm{\λ}}$ More than or equal to 0 less than 1 Time, k takes 0；When $\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×\cos \mathrm{\γ}-(y_o\×\cos \mathrm{\γ}+z_o\×\sin \mathrm{\γ})}{\mathrm{\λ}}$ (during more than or equal to 1 less than 2, k Taking 1, the rest may be inferred.

By formula (1) to metamaterial flat determined by formula (4), it is possible to make the electromagnetic wave that feed sends through super material Can be with the form outgoing of the plane wave horizontal by γ angle after material flat board；Equally, as it is shown in figure 1, by formula (1) to formula (4) metamaterial flat determined by, it is possible to make electromagnetic wave that satellite to be communicated sends (be regarded as when arriving ground with Horizontal plane angle is the plane wave of γ) can converge at the equivalent point X of feed through after metamaterial flat.

Mobile vehicle YDT in working order time (static), by servosystem CF so that in quiet logical satellite antenna from The satellite that dynamic alignment is to be communicated, i.e. by synchronous axial system metamaterial flat so that described metamaterial flat is at any motion shape Under state, satellite position is pointed in the y-axis direction of its core layer upper surface all the time, and synchronous satellite to be communicated is in this core The projection of synusia layer upper surface just falls on the y axis, additionally by Three dimensional rotation feed, it is achieved feed is in the control of servosystem Under carry out optimum signal scanning, i.e. make feed be always at the optimal of electromagnetic wave and converge on position, additionally feed can also be consolidated Surely connecting a support ZJ, servosystem controls the Three dimensional rotation of feed by controlling support ZJ.

From the above it can be seen that the present invention quiet in logical its function of servosystem required by satellite antenna fairly simple, Compared to existing quiet in logical satellite antenna, it is not necessary to three-dimensional rotation, the present invention quiet in logical its Meta Materials of satellite antenna put down Plate two-dimensional rotary, controls simple, it addition, feed is inside car, is possible to prevent feed to disturb, feed is had guarantor simultaneously Protect effect.

Having in the servosystem prior art of above-mentioned functions and existed a lot, it is not the core of the present invention, and Those skilled in the art describes the principle combining in prior art the servosystem about quiet middle way system according to above-mentioned word Design can produce the servosystem with above-mentioned functions easily, and the present invention no longer describes in detail.

In the present embodiment, as it is shown on figure 3, described first base material 13 includes base after the first prebasal plate 131 and first of lamellar Plate 132, the plurality of first man-made microstructure 12 is folded between the first prebasal plate 131 and the first metacoxal plate 132.Described core The thickness of synusia layer is 0.5-2mm, and wherein, the thickness of the first prebasal plate is 0.5-1mm, and the thickness of the first metacoxal plate is 0.5- 1mm, the thickness of multiple first man-made microstructure is 0.01-0.5mm.Preferably, the thickness of described core layer is 0.543mm, wherein, the thickness of the first prebasal plate and the first metacoxal plate is 0.254mm, the thickness of multiple first man-made microstructure For 0.035mm.

In the present embodiment, the index distribution of the one or more impedance matching layer lamella meets equation below:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\×n{\left(r\right)}^{\frac{m-i}{m}}---\left(5\right);$

Wherein, n_iR () represents that on impedance matching layer lamella, radius is the refractive index value at r, the folding of impedance matching layer lamella Penetrate the rate distribution center of circle and be the projection in corresponding impedance matching layer lamella outer surface place plane of the feed equivalent point, preferably Ground, the vertical Meta Materials of line in the index distribution center of circle of impedance matching layer lamella and the index distribution center of circle of core layer The index distribution center of circle of flat board, i.e. impedance matching layer lamella and the index distribution center of circle of core layer are in metamaterial flat Outer surface projection overlap；

Wherein, i represents the numbering of impedance matching layer lamella, near numbered the 1 of the impedance matching layer lamella of core layer, two The numbered m of limit outermost impedance matching layer lamella, is sequentially reduced to direction, both sides, numbering by core layer；

Above-mentioned n_max、n_minIdentical with the maximum of the refractive index of core layer, minima respectively；

Specifically, such as m=2, then the impedance matching layer limited by formula (5), near the impedance matching layer of core layer The index distribution of lamella is:

$n_1\left(r\right)={n_{\min }}^{\frac{1}{2}}\×n{\left(r\right)}^{\frac{1}{2}};$

Its index distribution of impedance matching layer near feed is:

n₂(r)=n_min；

Certainly, impedance matching layer is not limited to this, and described each impedance matching layer lamella can also have single refraction Rate, the refractive index of one or more impedance matching layer lamellas meets below equation:

$n\left(i\right)={((n_{\max }+n_{\min })/2)}^{\frac{i}{m}}---\left(6\right);$

Wherein, m represents total number of plies of impedance matching layer, and i represents the numbering of impedance matching layer lamella, wherein, near core The numbered m of the impedance matching layer lamella of layer, is sequentially reduced to direction, both sides, numbering by core layer, the outermost impedance in both sides Numbered the 1 of matching layer lamella, above-mentioned n_max、n_minIdentical with the maximum of the refractive index of core layer, minima respectively.

Specifically, such as m=2, then the impedance matching layer limited by formula (6), near the impedance matching layer of core layer The index distribution of lamella is:

N (2)=(n_max+n_min)/2；

Its index distribution of impedance matching layer near feed is:

$n\left(1\right)={((n_{\max }+n_{\min })/2)}^{\frac{1}{2}}.$

In the present embodiment, described second base material 23 includes the second prebasal plate 231 and the second metacoxal plate 232 of lamellar, described Multiple second man-made microstructure are folded between the second prebasal plate 231 and the second metacoxal plate 232.Described impedance matching layer lamella Thickness is 0.21-2.5mm, and wherein, the thickness of the first prebasal plate is 0.1-1mm, and the thickness of the first metacoxal plate is 0.1-1mm, many The thickness of individual first man-made microstructure is 0.01-0.5mm.Preferably, the thickness of described impedance matching layer lamella is 0.543mm, Wherein, the thickness of the second prebasal plate and the second metacoxal plate is 0.254mm, and the thickness of multiple second man-made microstructure is 0.035mm。

In the present embodiment, the arbitrary longitudinal section of described metamaterial flat is of similar shape and area, i.e. core layer with Join layer and be of similar shape the longitudinal section with area, longitudinal section herein refer in metamaterial flat with in metamaterial flat The section that axis is vertical.Preferably, the longitudinal section of described metamaterial flat is square, and processing is very easy to.

In the present embodiment, described first man-made microstructure, the second man-made microstructure are all for the gold being made up of copper cash or silver wire Belonging to micro structure, the method that described metal micro structure is carved by etching, electroplate, bore quarter, photoetching, electronics quarter or ion is respectively attached to First base material, the second base material.Preferably, described first man-made microstructure, the second man-made microstructure are the plane snow shown in Fig. 5 Flower-shaped metal micro structure develops the metal micro structure of the multiple different topology obtained by topology.

In the present embodiment, core layer can obtain by the following method, i.e. at the first prebasal plate and the first metacoxal plate The surface overlying copper of any one, then lead to overetched method and obtain multiple first metal micro structure (multiple first metals are micro- The shape of structure is obtained by Computer Simulation in advance with arrangement), finally by the first prebasal plate and the pressing respectively of the first metacoxal plate Together, i.e. obtaining the core layer of the present invention, the method for pressing can be direct hot pressing, it is also possible to be to utilize PUR even Connect, certainly may also be other mechanical connection, such as bolt and connect.

In like manner, impedance matching layer lamella can also utilize identical method to obtain.The most respectively by multiple core layer Pressing one, i.e. defines the core layer of the present invention；Equally, by multiple impedance matching layer lamella pressings one, this is i.e. defined The impedance matching layer of invention；Core layer, impedance matching layer pressing are integrally i.e. obtained the metamaterial flat of the present invention.

In the present embodiment, described first base material, the second base material are by ceramic material, macromolecular material, ferroelectric material, ferrum oxygen material Material or ferromagnetic material etc. prepare.Macromolecular material is available F4B composite, FR-4 composite etc..

Fig. 5 show the schematic diagram of the alabastrine metal micro structure of plane, and described alabastrine metal micro structure has It is mutually perpendicular to the first metal wire J1 and the second metal wire J2 divided equally, described first metal wire J1 and the length of the second metal wire J2 Identical, described first metal wire J1 two ends connect two the first metal branch F1, described first metal wire J1 having equal length Two ends are connected on the midpoint of two the first metal branch F1, and described second metal wire J2 two ends connection has two of equal length Second metal branch F2, described second metal wire J2 two ends are connected on the midpoint of two the second metal branch F2, and described first The length of metal branch F1 and the second metal branch F2 is equal.

Fig. 6 is a kind of derived structure of the alabastrine metal micro structure of the plane shown in Fig. 5.It divides at each first metal The two ends propping up F1 and each second metal branch F2 are respectively connected with identical 3rd metal branch F3, and the corresponding 3rd The midpoint of metal branch F3 end points with the first metal branch F1 and the second metal branch F2 respectively is connected.The rest may be inferred, this Bright can be to derive the metal micro structure of other form.

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure of the plane shown in Fig. 5, the micro-knot of metal of this kind of structure 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 equal It 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 arranging bending Portion towards with the kink relative position on the first metal wire and the second metal wire so that the metal micro structure shown in Fig. 7 All overlap with artwork to the figure of any direction 90-degree rotation around the axis being perpendicular to the first metal wire and the second metal wire intersection point. Furthermore it is also possible to there is other to deform, such as, the first metal wire J1 and the second metal wire J2 is respectively provided with multiple kink WZ.

In the present embodiment, described core layer 11 can be divided into multiple Meta Materials as shown in Figure 2 of array arrangement Cells D, each metamaterial unit D includes prebasal plate unit U, metacoxal plate unit V and is arranged on base board unit U, metacoxal plate unit V Between the first man-made microstructure 12, the length, width and height of usual metamaterial unit D no more than 1/5th wavelength, be preferably the most very One of wavelength, therefore, may determine that the size of metamaterial unit D according to the operating frequency of antenna.Fig. 2 is the technique of painting of perspective, with Represent the position in metamaterial unit D of the first man-made microstructure, as in figure 2 it is shown, described first man-made microstructure is sandwiched in substrate Between unit U, metacoxal plate unit V, its surface, place SR represents.

Known refractive indexWherein μ is relative permeability, and ε is relative dielectric constant, μ Yu ε is collectively referred to as electromagnetism ginseng Number.During it is demonstrated experimentally that electromagnetic wave is by refractive index dielectric material heterogeneous, can be to the big direction deviation of refractive index.Relatively In the case of pcrmeability is certain (being generally near 1), refractive index is the most relevant with dielectric constant, in the case of the first base material is selected, Utilize and only the first man-made microstructure of electric field response can be realized the arbitrary value of metamaterial unit refractive index (in certain limit In), under this center of antenna frequency, utilize simulation software, such as CST, MATLAB, COMSOL etc., obtain a certain spy by emulation The dielectric constant of the man-made microstructure (the alabastrine metal micro structure of plane as shown in Figure 5) of shaped is along with topology The situation of refractive index variable change, can list data one to one, and the specific refractive index that can design us needs divides The core layer 11 of cloth, in like manner can obtain the index distribution of impedance matching layer lamella.

In the present embodiment, the structure design of core layer can be passed through Computer Simulation (CST emulation) and obtain, the most such as Under:

(1) the attachment base material (the first base material) of the first metal micro structure is determined.Such as dielectric constant is the medium base of 2.25 Plate, 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 mid frequency of antenna, profit Obtain its wavelength by frequency, then take a numerical value less than 1/5th of wavelength length CD as metamaterial unit D with wide Degree KD.Such as corresponding to the center of antenna frequency of 11.95G, described metamaterial unit D is that long CD as shown in Figure 2 is equal with wide KD For the square platelet that 2.8mm, thickness HD are 0.543mm.

(3) material and the topological structure of metal micro structure are determined.In the present invention, the material of metal micro structure is copper, metal The topological structure of micro structure is the alabastrine metal micro structure of the plane shown in Fig. 5, and its live width W is the most consistent；Topology herein Structure, refers to the basic configuration that topology develops.

(4) the topology parameter of metal micro structure is determined.As it is shown in figure 5, in the present invention, the alabastrine metal of plane is micro- The topology parameter of structure includes live width W of metal micro structure, length a of the first metal wire J1, the first metal branch F1's Length b.

(5) the differentiation restrictive condition of the topology of metal micro structure is determined.In the present invention, the topological shape of metal micro structure The differentiation restrictive condition of shape has, and minimum spacing WL between metal micro structure is (i.e. as it is shown in figure 5, metal micro structure and Meta Materials The long limit of unit or the distance of broadside are WL/2), live width W of metal micro structure, the size of metamaterial unit；Due to processing technique Limiting, WL is more than or equal to 0.1mm, and equally, live width W is also intended to more than or equal to 0.1mm.For the first time during emulation, WL can take 0.1mm, W can take 0.3mm, and the size of metamaterial unit is long and a width of 2.8mm, and thickness is 0.543mm, now the micro-knot of metal The topology parameter of structure only has two variablees of a and b.The topology of metal micro structure is by the differentiation as shown in Fig. 7 to Fig. 8 Mode, corresponding to a certain characteristic frequency (such as 11.95GHZ), can obtain a continuous print variations in refractive index scope.

Specifically, the differentiation of the topology of described metal micro structure includes that two stages, (it is basic that topology develops It is shaped as the metal micro structure shown in Fig. 5):

First stage: according to developing restrictive condition, in the case of the holding of b value is constant, a value is changed to from minima Big value, the metal micro structure in this evolution process is " ten " font when minima (a take except).In the present embodiment, the minimum of a Value is 0.3mm (live width W), and the maximum of a is (CD-WL).Therefore, in the first phase, the topology of metal micro structure Differentiation as shown in Figure 8, i.e. from the square JX1 that the length of side is W, be gradually evolved into maximum " ten " font topology JD1.? In first stage, along with the differentiation of the topology of metal micro structure, the refractive index of corresponding metamaterial unit increases continuously Greatly (respective antenna one characteristic frequency).

Second stage: according to developing restrictive condition, when a increases to maximum, a keeps constant；Now, by b from minimum Value increases continuously maximum, and the metal micro structure in this evolution process is plane flakes.In the present embodiment, the minimum of b It is (CD-WL-2W) that value is the maximum of 0.3mm, b.Therefore, in second stage, drilling of the topology of metal micro structure Become as it is shown in figure 9, i.e. from maximum " ten " font topology JD1, be gradually evolved into the plane alabastrine topology shape of maximum Shape JD2, maximum alabastrine topology JD2 of plane herein refers to, the first metal branch J1 and the second metal branch J2 Length b can not extend again, otherwise generation is intersected by the first metal branch and the second metal branch.In second stage, Along with the differentiation of the topology of metal micro structure, the refractive index of corresponding metamaterial unit increases (respective antenna continuously One characteristic frequency).

If the variations in refractive index scope being obtained metamaterial unit by above-mentioned differentiation meets design needs (i.e. this change model Enclose and contain n_min-n_maxScope).If the variations in refractive index scope that above-mentioned differentiation obtains metamaterial unit is unsatisfactory for design need , such as maximum is the least, then variation WL and W, emulates again, until obtaining the variations in refractive index scope that we need.

According to formula (1) to (4), a series of metamaterial unit emulation obtained is arranged according to the refractive index of its correspondence After (actually multiple first man-made microstructure of different topology shape arrangement on the first base material), can obtain this The core layer of invention.

In like manner, the impedance matching layer lamella of the present invention can be obtained according to formula (5)-(6).

As shown in Figure 10, in the another kind of embodiment of the present invention, described metamaterial flat 100 does not have impedance matching layer, In this embodiment, the thickness of described core layer is Dh, Dh=D.Other identical with the above embodiments.

Equally, Figure 10 be the axis of feed constituted with geostationary satellite (being equivalent to a bit) to be communicated flat Face cutting the present embodiment quiet in the metamaterial flat in logical satellite antenna and the sectional view obtained by feed two parts, namely y Plane cutting the present embodiment that axle and feed axis are constituted quiet in metamaterial flat in logical satellite antenna and feed two Sectional view obtained by part.

Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned concrete Embodiment, above-mentioned detailed description of the invention is only schematic rather than restrictive, those of ordinary skill in the art Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot Form, within these belong to the protection of the present invention.

Claims (13)

1. one kind quiet in logical satellite antenna, it is characterised in that described quiet in logical satellite antenna include being arranged on mobile vehicle end face And the metamaterial flat of parallel water plane and be arranged on the feed in mobile vehicle inner space, described metamaterial flat is in servo The control of system is lower can be at himself residing rotation with in surface, and described feed carries out optimum signal under the control of servosystem Scanning, described metamaterial flat includes that core layer, described core layer include a core layer or multiple identical core layer Lamella, the first base material that each core layer includes lamellar and the multiple first artificial micro-knots being arranged on the first base material Structure, in working order under, with the lower surface of arbitrary core layer as X/Y plane, with feed point in this core layer lower surface institute In the plane be projected as zero O, set up the two-dimensional coordinate system of XOY, described core layer any point (x, refraction y) Rate meets equation below:

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

S=y_o×cosγ+z_o×sinγ；

$k=floor\left\{\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\×cos\mathrm{\γ}-(y_o\×cos\mathrm{\γ}+z_o\×\sin \mathrm{\γ})}{\mathrm{\λ}}\right\};$

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

Wherein,

n_(x,y)Represent this core layer any point (x, refractive index value y)；

z_oRepresent the feed point vertical dimension to metamaterial flat lower surface；

y_oRepresent the y-coordinate value of the lower surface edge of this core layer and the intersection point of y-axis positive direction；

γ represents the elevation angle of satellite to be communicated；

n_maxRepresent the maximum of the refractive index of core layer；

n_minRepresent the minima of the refractive index of core layer；

λ represents the wavelength of the electromagnetic wave that frequency is center of antenna frequency；

D is the thickness of metamaterial flat；

Floor represents and rounds downwards.

The most according to claim 1 quiet in logical satellite antenna, it is characterised in that the thickness of described core layer is Dh, Dh= D。

The most according to claim 1 quiet in logical satellite antenna, it is characterised in that described first base material includes the first of lamellar Prebasal plate and the first metacoxal plate, the plurality of first man-made microstructure is folded between the first prebasal plate and the first metacoxal plate, institute The thickness stating core layer is 0.21-2.5mm, and wherein, the thickness of the first prebasal plate is 0.1-1mm, the thickness of the first metacoxal plate Degree is 0.1-1mm, and the thickness of multiple first man-made microstructure is 0.01-0.5mm.

The most according to claim 1 quiet in logical satellite antenna, it is characterised in that described metamaterial flat also includes being arranged on The impedance matching layer of core layer both side surface, described impedance matching layer includes that an impedance matching layer lamella or multiple thickness are identical Impedance matching layer lamella, described impedance matching layer lamella includes the second base material of lamellar and is arranged on the second base material many Individual second man-made microstructure, the index distribution of the one or more impedance matching layer lamella meets equation below:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\×n{\left(r\right)}^{\frac{m-i}{m}};$

Wherein, n_iR () represents that on impedance matching layer lamella, radius is the refractive index value at r, the refractive index of impedance matching layer lamella is divided The cloth center of circle is feed point at corresponding impedance matching layer lamella relative to the projection of the outer surface place plane of core layer；

Wherein, i represents the numbering of impedance matching layer lamella, and near numbered the 1 of the impedance matching layer lamella of core layer, both sides are The numbered m of the impedance matching layer lamella in outside, is sequentially reduced to direction, both sides, numbering by core layer.

The most according to claim 1 quiet in logical satellite antenna, it is characterised in that described metamaterial flat also includes being arranged on The impedance matching layer of core layer both side surface, described impedance matching layer includes that an impedance matching layer lamella or multiple thickness are identical Impedance matching layer lamella, described impedance matching layer lamella includes the second base material of lamellar and is arranged on the second base material many Individual second man-made microstructure, described each impedance matching layer lamella has single refractive index, the one or more impedance Join the refractive index of synusia layer and meet below equation:

$n\left(i\right)={\left(\right(n_{max}+n_{\min })/2)}^{\frac{i}{m}};$

Wherein, m represents total number of plies of impedance matching layer, and i represents the numbering of impedance matching layer lamella, wherein, near core layer The numbered m of impedance matching layer lamella, is sequentially reduced to direction, both sides, numbering by core layer, the outermost impedance matching in both sides Numbered the 1 of synusia layer.

6. according to satellite antenna logical in quiet described in claim 4 or 5, it is characterised in that the thickness of described core layer is Dh, institute The thickness of the impedance matching layer stating every side is Dz, Dz+2Dh=D.

7. according to satellite antenna logical in quiet described in claim 4 or 5, it is characterised in that described second base material includes lamellar Second prebasal plate and the second metacoxal plate, the plurality of second man-made microstructure be folded in the second prebasal plate and the second metacoxal plate it Between, the thickness of described impedance matching layer lamella is 0.21-2.5mm, and wherein, the thickness of the second prebasal plate is 0.1-1mm, after second The thickness of substrate is 0.1-1mm, and the thickness of multiple second man-made microstructure is 0.01-0.5mm.

The most according to claim 1 quiet in logical satellite antenna, it is characterised in that described first man-made microstructure and the second people Making micro structure all for the metal micro structure being made up of copper cash or silver wire, described metal micro structure is by etching, electroplate, boring quarter, light Quarter, the method that electronics is carved or ion is carved are respectively attached on the first base material and the second base material.

The most according to claim 8 quiet in logical satellite antenna, it is characterised in that described metal micro structure is plane snowflake Shape, described metal micro structure has the first metal wire and the second metal wire being mutually perpendicular to divide equally, described first metal wire and The length of two metal wires is identical, and described first metal wire two ends connect two the first metal branch of equal length, and described the One metal wire two ends are connected on the midpoint of two the first metal branch, and described second metal wire two ends connect equal length Two the second metal branch, described second metal wire two ends are connected on the midpoint of two the second metal branch, described first gold medal Belong to branch equal with the length of the second metal branch.

The most according to claim 9 quiet in logical satellite antenna, it is characterised in that the micro-knot of the alabastrine metal of described plane Each first metal branch of structure and the two ends of each second metal branch are also associated with identical 3rd metal branch, phase The midpoint of the 3rd metal branch answered end points with the first metal branch and the second metal branch respectively is connected.

11. according to claim 9 quiet in logical satellite antenna, it is characterised in that the micro-knot of the alabastrine metal of described plane First metal wire of structure and the second metal wire are provided with two kinks, and the alabastrine metal micro structure of described plane is around first The intersection point of metal wire and the second metal wire in plane residing for metal micro structure to the figure of any direction 90-degree rotation all with former Figure overlaps.

12. according to claim 1 quiet in logical satellite antenna, it is characterised in that offer on the end face of described mobile vehicle Having wave transparent hole, be equiped with wave transparent plate in described wave transparent hole, described metamaterial flat is arranged on wave transparent plate.

13. according to claim 12 quiet in logical satellite antenna, it is characterised in that described wave transparent hole is circular hole, and wave transparent Hole has been inwardly formed annular flange flange, and described wave transparent plate is round pie, and the outward flange of described wave transparent plate overlaps with annular flange flange, described Metamaterial flat is round pie, and described metamaterial flat covers on wave transparent plate.