CN102760950B - Portable satellite antenna and satellite antenna receiving system - Google Patents

Abstract

The invention provides a portable satellite antenna which comprises a feed source, a feed source support rod, a reflecting board, a frame and a reflecting board elevation angle adjusting device, wherein one end of the feed source support rod is fixedly connected with the feed source, the other end of the feed source support rod is fixed on the frame, the reflecting board elevation angle adjusting device comprises a horizontal base, a connecting rod, a slide way and a locking device, the horizontal base further comprises a second hinge hinged with the feed source support rod, the upper end of the connecting rod can slide relative to the slide way under the status that the locking device is unlocked, the reflecting board is a metamaterial flat board, the metamaterial flat board comprises a core layer and a reflecting layer arranged on the surface at one side of the core layer, the core layer comprises a core layer sheet layer or a plurality of core layer sheet layers which are as the same as one another, and each core layer sheet layer comprises a sheet-shaped first base material and a plurality of first artificial micro-structures arranged on the first base material. According to the portable satellite antenna disclosed by the invention, the reflecting board is the metamaterial flat board which adopts a metamaterial technology, so that the elevation angle of the antenna can be very conveniently adjusted, and the portable satellite antenna is small and portable.

Description

A kind of Portable satellite aerial and satellite antenna receiving system

Technical field

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

Background technology

The satellite earth receiving station that traditional satellite antenna receiving system is made up of parabolic reflecting plate, feed, tuner, satellite receiver.Parabolic reflecting plate is responsible for satellite-signal to reflex to the feed and tuner that are positioned at focus place.Feed be arrange at the focus place of parabolic reflecting plate one for collecting the loudspeaker of satellite-signal, also known as corrugated horn.Its major function has two: one to be collected by the electromagnetic wave signal that antenna receives, and is transformed into signal voltage, supply high frequency head.Two is carry out polarization conversion to the electromagnetic wave received.Tuner LNB(is also known as frequency demultiplier) be that the satellite-signal sent here by feed carries out frequency reducing and then signal amplification is sent to satellite receiver.Generally can be divided into C-band frequency LNB (3.7GHz-4.2GHz, 18-21V) and Ku audio range frequency LNB (10.7GHz-12.75GHz, 12-14V).The workflow of LNB be exactly first satellite high-frequency signals is amplified to hundreds thousand of times afterwards recycle local oscillation circuit high-frequency signals is converted to intermediate frequency 950MHz-2050MHz, be beneficial to the transmission of coaxial cable and the solution mediation work of satellite receiver.Satellite receiver is that the satellite-signal transported by tuner carries out demodulation, demodulates satellite television image or digital signal and audio signal.

During receiving satellite signal, parallel electromagnetic wave is converged on feed after being reflected by parabolic reflecting plate.Usually, the feed that parabolic reflecting plate is corresponding is a horn antenna.

But because the Machining of Curved Surface difficulty of the reflecting surface of parabolic reflecting plate is large, 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, manufactures the large defect of difficulty of processing for existing satellite antenna, provides a kind of easy processing and manufacturing and the low Portable satellite aerial of cost.

The technical solution adopted for the present invention to solve the technical problems is: a kind of Portable satellite aerial, comprise feed, feed pole, reflecting plate, the framework of fixation reflex plate and reflecting plate angle regulating device, one end of described feed pole is fixedly connected with feed, the other end is fixed on framework, described reflecting plate angle regulating device comprises horizontal base, lower end is by the first hinge and the hinged connecting rod of horizontal base, be arranged on the locking device of chute on feed pole and lock link position, described horizontal base also comprises second hinge hinged with feed pole, the upper end of described connecting rod can slide relatively under locking device is in unlocked state, described reflecting plate is metamaterial flat, described metamaterial flat comprises core layer and is arranged on the reflector of core layer one side surface, described core layer comprises a core layer or multiple identical core layer, the first base material that each core layer comprises sheet and multiple first man-made microstructure be arranged on the first base material.

Further, described connecting rod is set on the outer surface of feed pole, and described locking device comprises slide bolt and is connected to the locking nut of slide bolt one end, and described slide bolt runs through connecting rod and chute.

Further, the refraction index profile of described core layer meets following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{r^2+s^2}-\mathrm{Vseg}}{D};$

Vseg=s+λ×NUMseg；

$\mathrm{NUMseg}=\mathrm{floor}\left\{\frac{\sqrt{r^2+s^2}-s}{\mathrm{\λ}}\right\};$

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

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 feed equivalent point in this core layer place plane;

S is the vertical range of feed equivalent point to Meta Materials plane-reflector;

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, the thickness of described core layer is Dh, 2Dh=D.

Further, described first base material comprises the first prebasal plate and first metacoxal plate of sheet, described multiple first man-made microstructure is folded between the first prebasal plate and the first metacoxal plate, the thickness of described core layer is 0.21-2.5mm, wherein, the thickness of the first prebasal plate is 0.1-1mm, and the thickness of the first metacoxal plate is 0.1-1mm, and the thickness of multiple first man-made microstructure is 0.01-0.5mm.

Further, described Meta Materials plane-reflector also comprises the impedance matching layer being arranged on core layer opposite side surface, described impedance matching layer comprises an impedance matching layer lamella or the identical impedance matching layer lamella of multiple thickness, the second base material that described impedance matching layer lamella comprises sheet and multiple second man-made microstructure be arranged on the second base material, the refraction index profile of described one or more impedance matching layer lamella meets following formula:

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

Wherein, n _ir () represents that on impedance matching layer lamella, radius is the refractive index value at r place, the refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point in corresponding impedance matching layer lamella outer surface place plane;

Wherein, i represents the numbering of impedance matching layer lamella, near feed impedance matching layer lamella be numbered m, by feed to core layer direction, numbering reduce successively, near core layer impedance matching layer lamella be numbered 1;

Above-mentioned n _max, n _minidentical with the maximum of the refractive index of core layer, minimum value respectively.

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

Further, described second base material comprises the second prebasal plate and second metacoxal plate of sheet, described multiple second man-made microstructure is 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, and the thickness of multiple second man-made microstructure is 0.01-0.5mm.

Further, described first man-made microstructure and the second man-made microstructure metal micro structure all for being made up of copper cash or silver-colored line, described metal micro structure is by etching, plating, bore and carve, photoetching, the method that electronics is carved or ion is carved is attached on the first base material and the second base material respectively, 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.

According to Portable satellite aerial of the present invention, reflecting plate is the metamaterial flat adopting Meta Materials technology, can adjust antenna elevation angle easily, and is small and exquisitely easy to carry.Further, replace traditional parabolic reflecting plate 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 millimeter rank, and suitable is frivolous.

Present invention also offers a kind of satellite antenna receiving system, comprise the tuner connecting feed and the satellite receiver be connected with tuner, described satellite antenna receiving system also comprises above-mentioned Portable satellite aerial.

Accompanying drawing explanation

Fig. 1 is that Meta Materials plane-reflector of the present invention converges electromagnetic schematic diagram;

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 core layer of the present invention;

Fig. 4 is the structural representation of 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 plane shown in Fig. 5;

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure of 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 structural representation of the Portable satellite aerial of an embodiment of the present invention;

Figure 11 is another visual angle figure of Figure 10.

Embodiment

As shown in figs.10 and 11, according to the Portable satellite aerial of this invention, comprise feed 1, feed pole 2, reflecting plate 100, the framework 3 of fixation reflex plate and reflecting plate angle regulating device, one end of described feed pole 2 is fixedly connected with feed 1, the other end is fixing on the frame 3, described reflecting plate angle regulating device comprises horizontal base 4, lower end is by the first hinge JL1 and the hinged connecting rod 5 of horizontal base 4, be arranged on the locking device of chute HC on feed pole 2 and lock link position, described horizontal base 4 also comprises the second hinge JL2 hinged with feed pole 2, can relatively slide by chute HC in the upper end of described connecting rod 5 under locking device is in unlocked state.In the present invention, described feed 1 is traditional corrugated horn, the CL11R integral high frequency head of such as Tongzhou Electronics.

In the present embodiment, described connecting rod 5 is set on the outer surface of feed pole 2, and described locking device comprises slide bolt 6 and is connected to the locking nut 7 of slide bolt 6 one end, and described slide bolt 6 runs through connecting rod 5 and chute HC.The relative sliding of connecting rod and feed pole is realized by the slip of slide bolt 6 in chute, horizontal base 4 also has multiple horizontal location hole, like this, horizontal base can be fixed on the ground of basic horizontal or the surface of other object by screw, when horizontal base is fixing, unscrew locking nut 7, the adjustment to the reflecting plate elevation angle can be realized.

In the present embodiment, described framework 3 comprises upper side frame 31, middle frame 32 and lower frame 33, and described upper side frame 31, middle frame 32 and lower frame 33 are fixed on the back side of reflecting plate respectively by bolt LS, and described feed pole 2 is also bolted on framework 3.

The elevation angle of reflecting plate 100 and azimuthal adjustment (i.e. satellite antenna elevation and azimuthal adjustment) specific as follows:

First, utilize the azimuth of the instrument determination antennas such as compass, after determining, horizontal base 4 is fixed on the ground, such as, follow closely on the ground with screw; After fixing, lower surface and the ground of horizontal base are adjacent to.

Then, the locking position that namely locking nut 7(removes connecting rod is unscrewed);

Upwards lift reflecting plate 100, due to reflecting plate and the through transport of feed pole, so feed pole can be slided by relative connecting rod 5, until appropriate location, tighten the position of locking nut 7(and lock link), appropriate location herein refers to, the elevation angle of reflecting plate just equals the satellite that will the communicate elevation angle in this geographical position, namely the elevation angle reaching reflecting plate regulates, and the elevation angle namely achieving antenna regulates.

In the present invention, by the size design of the mechanical structure of reflecting plate angle regulating device, reflecting plate can be realized and in certain rotation angle range, rotate (i.e. elevation coverage) relative to horizontal base, such as 0-75 degree.

In the present invention, described reflecting plate 100 is Meta Materials plane-reflector, as shown in Figures 1 to 4, in one embodiment of the present of invention, Portable satellite aerial according to the present invention comprises the Meta Materials plane-reflector 100 being arranged on feed 1 rear, described Meta Materials plane-reflector 100 comprises core layer 10, be arranged on the reflector 200 on surface, core layer 10 side and be arranged on the impedance matching layer 20 on core layer opposite side surface, described core layer 10 comprises a core layer or the identical and multiple core layer 11 that refraction index profile is identical of thickness, the first base material 13 that described core layer 11 comprises sheet and multiple first man-made microstructure 12 be arranged on the first base material 13, described impedance matching layer 20 comprises an impedance matching layer lamella 21 or the identical multiple impedance matching layer lamellas 21 of thickness, the second base material 23 that described impedance matching layer lamella 21 comprises sheet and multiple second man-made microstructure be arranged on the second base material.The axis Z2 of feed axis Z1 and Meta Materials plane-reflector 100 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, feed 1 on the axis Z2 of Meta Materials plane-reflector 100, does not achieve the offset-fed of antenna.Feed is traditional corrugated horn in addition.In addition, in the present invention, reflector is the metallic reflection plate with smooth surface, such as, can be 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, such as copper coating.In the present invention, the described arbitrary longitudinal section of Meta Materials plane-reflector 100 is of similar shape and area, and longitudinal section herein refers to section vertical with the axis of Meta Materials plane-reflector in Meta Materials plane-reflector.The longitudinal section of described Meta Materials plane-reflector is square, circular or oval, preferably, the longitudinal section of described Meta Materials plane-reflector is square, and the Meta Materials plane-reflector obtained so is easily processed, the square of such as 300X300mm or 450X450mm.The circle of circle can be diameter be 250,300 or 450mm.

In the present embodiment, as shown in Figure 1, the refraction index profile of described core layer meets following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{r^2+s^2}-\mathrm{Vseg}}{D}$ （1）；

Vseg=s+λ*NUMseg （2）；

$\mathrm{NUMseg}=\mathrm{floor}\left\{\frac{\sqrt{r^2+s^2}-s}{\mathrm{\λ}}\right\}$ （3）；

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

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 feed equivalent point X in this core layer outer surface place plane, the lower edge of described center of circle O1 and this core layer is timing at a distance of sy(sy, represents that center of circle O1 is in the outside of 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 feed equivalent point X to Meta Materials plane-reflector; In fact the equivalent point X of feed is exactly the feedback point (point focused on occurs electromagnetic wave in feed) of antenna herein; When the angle theta of the axis Z2 of feed axis Z1 and Meta Materials plane-reflector 100 changes, also can there is slight change in s.

The relative position of feed equivalent point X and Meta Materials plane-reflector is by s, θ and sy determines jointly, usually, feed equivalent point X is selected on the Z1 of feed axis, the position of feed equivalent point X is relevant with the bore of feed, can be such as and the position (ds be X point in Fig. 1 distance to Y point) of feed 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, feed equivalent point X position is also different, namely ds is different, but, feed equivalent point is still on the Z1 of feed axis.

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 Meta Materials plane-reflector, and in the present embodiment, preferably, the thickness that equivalent thickness D equals impedance matching layer adds the thickness of the core layer of twice, that is:

If the thickness of core layer is Dh, the thickness of impedance matching layer is Dz, then have Dz+2Dh=D;

Core layer can set according to different needs from the quantity of impedance matching layer lamella, such as, can be three core layer, six impedance matching layer lamellas; May also be two core layer, four impedance matching layer lamellas; May also be two core layer, three impedance matching layer lamellas; May also be two core layer, two impedance matching layer lamellas; May also be a core layer, an impedance matching layer lamella.

Floor represents and rounds downwards, such as, when (r is in a certain number range) is more than or equal to 0 when being less than 1, and NUMseg gets 0, when (r is in a certain number range) is more than or equal to 1 when being less than 2, and NUMseg gets 1, and the rest may be inferred.

By formula (1) to the determined Meta Materials plane-reflector of formula (4), the electromagnetic wave that feed can be made to send can with the form outgoing of the plane wave perpendicular to Meta Materials plane-reflector after Meta Materials plane-reflector; Equally, as shown in Figure 1, by formula (1) to the determined Meta Materials plane-reflector of formula (4), the electromagnetic wave that satellite can be made to send (can plane wave be thought when arriving ground, and vertical incidence) can converge at the equivalent point X place of feed after Meta Materials plane-reflector; Certainly, when receiving satellite antenna signals, the normal direction of Meta Materials plane-reflector is towards the satellite that will receive, as for the satellite how making the normal direction of Meta Materials plane-reflector 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, no longer states herein.

In the present embodiment, as shown in Figure 3, described first base material 13 comprises the first prebasal plate 131 and the first metacoxal plate 132 of sheet, and described multiple first man-made microstructure 12 is folded between the first prebasal plate 131 and the first metacoxal plate 132.The thickness of described core 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, and the thickness of multiple first man-made microstructure is 0.01-0.5mm.Preferably, the thickness of described core layer is 1.018mm, and wherein, the thickness of the first prebasal plate and the first metacoxal plate is 0.5mm, and the thickness of multiple first man-made microstructure is 0.018mm.

In the present embodiment, the refraction index profile of described one or more impedance matching layer lamella meets following formula:

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

Wherein, n _ir () represents that on impedance matching layer lamella, radius is the refractive index value at r place, the refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point in corresponding impedance matching layer lamella outer surface place plane, preferably, the refraction index profile center of circle of impedance matching layer lamella Meta Materials plane-reflector vertical with the line in the refraction index profile center of circle of core layer;

Wherein, i represents the numbering of impedance matching layer lamella, near feed impedance matching layer lamella be numbered m, by feed to core layer direction, numbering reduce successively, near core layer impedance matching layer lamella be numbered 1;

Above-mentioned n _max, n _minidentical with the maximum of the refractive index of core layer, minimum value respectively;

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

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

Its refraction index profile of impedance matching layer near feed is:

n ₂(r)=n _min；

Certainly, impedance matching layer is not limited to this, and each impedance matching layer lamella described also can have single refractive index, and the refractive index of described one or more impedance matching layer lamella meets following formula:

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

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 impedance matching layer lamella be numbered m.

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

n(2)=(n _max+n _min)/2；

Its refraction index profile 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 comprises the second prebasal plate 231 and the second metacoxal plate 232 of sheet, and described multiple second man-made microstructure is folded between the second prebasal plate 231 and the second metacoxal plate 232.The thickness of described impedance matching layer lamella 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, and the thickness of multiple first man-made microstructure is 0.01-0.5mm.Preferably, the thickness of described impedance matching layer lamella is 1.018mm, and wherein, the thickness of the second prebasal plate and the second metacoxal plate is 0.5mm, and the thickness of multiple second man-made microstructure is 0.018mm.

In the present embodiment, the described arbitrary longitudinal section of Meta Materials plane-reflector is of similar shape and area, namely core layer and matching layer are of similar shape the longitudinal section with area, and longitudinal section herein refers to section vertical with the axis of Meta Materials plane-reflector in Meta Materials plane-reflector.The longitudinal section of described Meta Materials plane-reflector is square, circular or oval, and preferably, the longitudinal section of described Meta Materials plane-reflector is square, and the Meta Materials plane-reflector obtained so is easily processed.Preferably, the square of to be the length of side be in the longitudinal section of Meta Materials plane-reflector of the present invention 450mm.

In the present embodiment, described first man-made microstructure, the second man-made microstructure metal micro structure all for being 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 be attached to the first base material, the second base material respectively.Preferably, described first man-made microstructure, the second man-made microstructure are the alabastrine metal micro structure of plane shown in Fig. 5 develops the multiple different topology obtained metal micro structure by topology.

In the present embodiment, core layer can obtain by the following method, namely on the surface of any one of the first prebasal plate and the first metacoxal plate, copper is covered, multiple first metal micro structure (shape of multiple first metal micro structure is obtained by Computer Simulation in advance with arrangement) is obtained again by etching method, finally the first prebasal plate and the first metacoxal plate are pressed together respectively, namely core layer of the present invention is obtained, the method of pressing can be direct hot pressing, also can be utilize PUR to connect, certainly may also be other mechanical connection, such as bolt connects.

In like manner, impedance matching layer lamella also can utilize identical method to obtain.Then respectively by multiple core layer pressing one, core layer of the present invention is namely defined; Equally, by multiple impedance matching layer lamella pressing one, impedance matching layer of the present invention is namely defined; Namely core layer, impedance matching layer, reflector pressing one are obtained Meta Materials plane-reflector of the present invention.

In the present invention, described first base material, the second base material are 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 5 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. 6 is a kind of derived structure of the alabastrine metal micro structure of plane shown in Fig. 5.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. 7 is a kind of distressed structure of the alabastrine metal micro structure of plane shown in Fig. 5, 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 embodiment, 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 prebasal plate unit U, metacoxal plate unit V and is arranged on the first man-made microstructure 12 between base board unit U, metacoxal plate unit V, 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.Fig. 2 is the technique of painting of perspective, and to represent the position in the metamaterial unit D of the first man-made microstructure, as shown in Figure 2, described first man-made microstructure is sandwiched between base board unit U, metacoxal plate unit V, and its surface, place represents with SR.

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 the first base material is selected, utilize the arbitrary value (within the specific limits) that only can realize metamaterial unit refractive index to the first 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 5) 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 11 of the specific refractive index distribution that we need can be designed, in like manner can obtain the refraction index profile of impedance matching layer lamella.

In the present embodiment, the structural design of core layer obtains by Computer Simulation (CST emulation), specific as follows:

(1) the attachment base material (the first base material) of the first 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.In the present invention, corresponding to the centre frequency of 11.95G, described metamaterial unit D is long CD as shown in Figure 2 and wide KD is 2.8mm, thickness HD is 1.018mm 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. 5, 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 5, 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, and namely as shown in Figure 5, the long limit of metal micro structure and metamaterial unit or the distance of broadside are WL/2 to the minimum spacing WL(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. 5):

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), 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 8, 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 9, 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 (6), 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 first man-made microstructure on the first base material of different topology shape), can obtain core layer of the present invention.

In like manner, impedance matching layer lamella of the present invention can be obtained.

In another kind of embodiment of the present invention, described Meta Materials plane-reflector 100 does not have impedance matching layer, and in this embodiment, the thickness of described core layer is Dh, 2Dh=D.Other identical with the above embodiments.

In addition, present invention also offers a kind of satellite antenna receiving system, comprise the tuner 30 and the satellite receiver (not indicating in figure) be connected by cable with tuner 30 and Portable satellite aerial of the present invention that connect feed 1.In the present invention, described feed 1 is traditional corrugated horn.Satellite receiver and tuner are also existing technology, no longer state herein.

Described feed, can be such as the CL11R integral high frequency head of Tongzhou Electronics, incoming frequency be 11.7 ~ 12.2GHz, and output frequency is 950 ~ 1450MHz, can watch most of Ku band satellite TV.

Satellite receiver, such as, can adopt the N6188 of Tongzhou Electronics, for receiving the satellite TV signal of No. 9, culminant star.

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 (9)

1. a Portable satellite aerial, it is characterized in that, comprise feed, feed pole, reflecting plate, the framework of fixation reflex plate and reflecting plate angle regulating device, one end of described feed pole is fixedly connected with feed, the other end is fixed on framework, described reflecting plate angle regulating device comprises horizontal base, lower end is by the first hinge and the hinged connecting rod of horizontal base, be arranged on the locking device of chute on feed pole and lock link position, described horizontal base also comprises second hinge hinged with feed pole, the upper end of described connecting rod can slide relatively under locking device is in unlocked state, described reflecting plate is metamaterial flat, described metamaterial flat comprises core layer and is arranged on the reflector of core layer one side surface, described core layer comprises a core layer or multiple identical core layer, the first base material that each core layer comprises sheet and multiple first man-made microstructure be arranged on the first base material,

The refraction index profile of described core layer meets following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{r^2+s^2}-\mathrm{Vseg}}{D};$

Vseg＝s+λ×NUMseg；

$\mathrm{NUMseg}=\mathrm{floor}\left\{\frac{\sqrt{r^2+s^2}-s}{\mathrm{\λ}}\right\};$

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

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 feed equivalent point in this core layer place plane;

S is the vertical range of feed equivalent point to Meta Materials plane-reflector;

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. Portable satellite aerial according to claim 1, it is characterized in that, described connecting rod is set on the outer surface of feed pole, and described locking device comprises slide bolt and is connected to the locking nut of slide bolt one end, and described slide bolt runs through connecting rod and chute.

3. Portable satellite aerial according to claim 2, is characterized in that, the thickness of described core layer is Dh, 2Dh=D.

4. Portable satellite aerial according to claim 2, it is characterized in that, described first base material comprises the first prebasal plate and first metacoxal plate of sheet, described multiple first man-made microstructure is folded between the first prebasal plate and the first metacoxal plate, the thickness of described 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 is 0.1-1mm, and the thickness of multiple first man-made microstructure is 0.01-0.5mm.

5. Portable satellite aerial according to claim 2, it is characterized in that, described Meta Materials plane-reflector also comprises the impedance matching layer being arranged on core layer opposite side surface, described impedance matching layer comprises an impedance matching layer lamella or the identical impedance matching layer lamella of multiple thickness, the second base material that described impedance matching layer lamella comprises sheet and multiple second man-made microstructure be arranged on the second base material, the refraction index profile of described one or more impedance matching layer lamella meets following formula:

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

Wherein, n _ir () represents that on impedance matching layer lamella, radius is the refractive index value at r place, the refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point in corresponding impedance matching layer lamella outer surface place plane;

Wherein, i represents the numbering of impedance matching layer lamella, near feed impedance matching layer lamella be numbered m, by feed to core layer direction, numbering reduce successively, near core layer impedance matching layer lamella be numbered 1;

Above-mentioned n _max, n _minidentical with the maximum of the refractive index of core layer, minimum value respectively.

6. Portable satellite aerial according to claim 5, is characterized in that, the thickness of described core layer is Dh, and the thickness of described impedance matching layer is Dz, Dz+2Dh=D.

7. Portable satellite aerial according to claim 5, it is characterized in that, described second base material comprises the second prebasal plate and second metacoxal plate of sheet, described multiple second man-made microstructure is folded between the second prebasal plate and the second metacoxal plate, 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, the thickness of the second metacoxal plate is 0.1-1mm, and the thickness of multiple second man-made microstructure is 0.01-0.5mm.

8. Portable satellite aerial according to claim 5, it is characterized in that, described first man-made microstructure and the second man-made microstructure metal micro structure all for being made up of copper cash or silver-colored line, described metal micro structure is by etching, plating, bore and carve, photoetching, the method that electronics is carved or ion is carved is attached on the first base material and the second base material respectively, 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.

9. a satellite antenna receiving system, comprise the tuner connecting feed and the satellite receiver be connected with tuner, it is characterized in that, described satellite antenna receiving system also comprises the Portable satellite aerial as described in claim 1 to 8 any one.