CN102868027A - Offset satellite television antenna and satellite television receiving system thereof - Google Patents

Abstract

The invention discloses an offset satellite television antenna which comprises a metamaterial panel fixedly attached onto a vertical wall. The lower edge of the metamaterial panel and the upper end of a feed source are positioned on the same horizontal plane, the metamaterial panel comprises a reflecting layer and a core layer, the surface of one side of the reflecting layer is close to the wall, the core layer is arranged on the surface of the other side of the reflecting layer, the core layer comprises two core layer slices, each core layer slice comprises a first flaky base material and a plurality of first artificial microstructures arranged on the first base material, and the antenna can receive television signals of a specific satellite by specially designing refractive index distribution of the core layer slices. According to the offset satellite television antenna, the flaky metamaterial panel replaces a traditional parabolic antenna, the offset satellite television antenna is easier to manufacture and machine, lower in cost and high in uniformity.

Description

A kind of offset-feed type satellite tv antenna and satellite television receiving system thereof

Technical field

The present invention relates to the communications field, more particularly, relate to a kind of offset-feed type satellite tv antenna and satellite television receiving system thereof.

Background technology

The satellite earth receiving station that traditional satellite television receiving system is comprised of parabolic antenna, feed, tuner, satellite receiver.Parabolic antenna is responsible for satellite-signal is reflexed to feed and the tuner that is positioned at the focus place.Feed is loudspeaker that are used for collecting satellite-signal that arrange at the focus place of parabolic antenna, claims again corrugated horn.Its major function has two: the one, the electromagnetic wave signal of antenna reception is collected, and be transformed into signal voltage, the supply high frequency head.The 2nd, the electromagnetic wave that receives is carried out polarization conversion.Tuner LNB(also claims frequency demultiplier) be the satellite-signal that feed is sent here to be carried out frequency reducing and signal amplify and then be 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 is exactly to recycle local oscillation circuit after first the satellite high-frequency signals being amplified to hundreds thousand of times high-frequency signals is converted to intermediate frequency 950MHz-2050MHz, is beneficial to the transmission of coaxial cable and the solution mediation work of satellite receiver.Satellite receiver is that the satellite-signal that tuner transports is carried out demodulation, demodulates satellite television image or digital signal and audio signal.

During receiving satellite signal, parallel electromagnetic wave (plane wave) converges on the feed after reflecting by parabolic antenna.Usually, the feed that parabolic antenna is corresponding is a horn antenna.

But because the Machining of Curved Surface difficulty of the reflecting surface of parabolic antenna is large, required precision is also high, therefore, makes trouble, cost is higher, and the consistency of product is relatively poor.

Summary of the invention

Technical problem to be solved by this invention is, for the defective that existing satellite tv antenna processing is difficult for, cost is high and homogeneity of product is relatively poor, provides a kind of simple, low cost of manufacture and high offset-feed type satellite tv antenna of homogeneity of product processed.

The technical solution adopted for the present invention to solve the technical problems is: a kind of offset-feed type satellite tv antenna, described offset-feed type satellite tv antenna comprises the super material panel that fixedly is attached on the vertical wall, the reflecting plate that described super material panel comprises core layer and is arranged on core layer one side surface, described core layer comprises two core layer lamellas that thickness is identical and refraction index profile is identical, described core layer lamella comprises the first base material of sheet and is arranged on a plurality of first artificial micro-structural on the first base material, and the refraction index profile of described core layer lamella satisfies following formula:

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

v _segment=ss+λ*num _segment,

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

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

dis=d ₁+d ₂,

$d_1=\sqrt{x^2+{(y-y_{\mathrm{source}})}^2+{\mathrm{<figure-callout\; id="2"\; label="z\; source"\; filenames="HDA0000159127170000051.png"\; state="\{\{state\}\}">z</figure-callout>}}_{\mathrm{source}}^{}},$

${\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="HDA0000159127170000051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2=\sin \mathrm{\&gamma;}*(L/2-y),$

$\mathrm{ss}=\sin \mathrm{\&gamma;}(L/2-y_{\mathrm{virtual}})-\cos \mathrm{\&gamma;}*z_{\mathrm{virtual}},$

Above formula is to set up coordinate system at super material panel, wherein super material panel central point is the origin of coordinates (0,0,0), satellite is at the central point of the subpoint of described wall, super material panel and the feed subpoint three point on a straight line at described wall, and described 3 conllinear is the y axle, and towards satellite in the subpoint direction of described wall for just, vertical described super material panel is the z axle, and outside wall for just;

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

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

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

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

λ represents the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ represents to send from particular satellite becomes with super material panel normal when the incident of super material panel surface;

Floor represents to round downwards;

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

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

Further, described the first base material comprises the first prebasal plate and first metacoxal plate of sheet, and described a plurality of first artificial micro-structural is folded between the first prebasal plate and the first metacoxal plate.

Further, the thickness of described core layer lamella is 0.546mm, and wherein, the thickness of the first prebasal plate and the first metacoxal plate is 0.254mm, and the thickness of a plurality of the first artificial micro-structurals is 0.038mm.

Further, the arbitrary longitudinal section of described super material panel is of similar shape and area.

Further, the longitudinal section of described super material panel is square, circular or oval.

Further, the metal micro structure of the described first artificial micro-structural for being consisted of by copper cash or silver-colored line, described metal micro structure is attached to respectively the first base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.

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

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

Further, the first metal wire of the alabastrine metal micro structure in described plane and the second metal wire are provided with two kinks, and the alabastrine metal micro structure in described plane winds perpendicular to the axis of the first metal wire and the second metal wire intersection point figure to any direction 90-degree rotation and all overlaps with former figure.

According to offset-feed type satellite tv antenna of the present invention, replaced traditional parabolic antenna by the super material panel of sheet, make processing and be more prone to, cost is cheaper, and the consistency of product is high, simultaneously, offset-feed type satellite tv antenna of the present invention directly is attached on the vertical wall in house, do not take up room, do not need complicated support yet, save further cost, and install simple, for example, can directly follow closely on wall with nail, or fasten with glue on wall.And the design that antenna is attached at wall has solved the windage problem of traditional parabolic antenna effectively.

In addition, the present invention also provides a kind of satellite television receiving system.

A kind of satellite television receiving system, comprise feed, connect the tuner of feed and the satellite receiver that is connected with tuner, described satellite television receiving system also comprises above-mentioned offset-feed type satellite tv antenna, described offset-feed type satellite tv antenna fixedly is attached on the vertical wall, and described feed is fixed on the vertical wall in house by pole.

Further, described feed is double-circle polarization corrugated horn, left-hand circular polarization corrugated horn or right-handed circular polarization corrugated horn.

Further, the incoming frequency of used tuner is 11.7 ~ 12.2GHz, and output frequency is 950 ~ 1450MHz.

Further, used feed three-dimensional is adjustable.

Description of drawings

Fig. 1 is the structural representation of offset-feed type satellite tv antenna in the first embodiment of the present invention;

Fig. 2 is the structural representation of the satellite television receiving system of an embodiment of the present invention;

Fig. 3 is the perspective diagram of one of them super material cell of core layer lamella of the present invention;

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

Fig. 5 is the structural representation of impedance matching layer lamella of the present invention;

Fig. 6 is the schematic diagram of the alabastrine metal micro structure in plane of the present invention;

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

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

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

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

Embodiment

As shown in Figures 1 to 4, structural representation for the offset-feed type satellite tv antenna of first embodiment of the invention, described offset-feed type satellite tv antenna comprises the super material panel 100 that fixedly is attached on the vertical wall NQ, the upper end of the lower edge of described super material panel 100 and feed 1 is in same level, and described super material panel 100 comprises that a side surface is by the reflector 200 of wall setting and the core layer 10 that is arranged on 200 opposite side surfaces, reflector.Feed 1 is traditional corrugated horn, and this polarization mode difference according to the TV signal of satellite has different selections, and for example No. 9, culminant star, and the existing left-hand circular polarization of its TV signal has again right-handed circular polarization, so feed should adopt the corrugated horn of double-circle polarization.In addition, among the present invention, the reflector is the metallic reflection plate with smooth surface, such as copper coin, aluminium sheet or the iron plate etc. that can be polishing, and also PEC(desired electrical conductor) reflecting surface can certainly be metal coating.In the present embodiment, described super material panel 100 arbitrary longitudinal sections are of similar shape and area, and namely core layer is of similar shape the longitudinal section with area, and longitudinal section herein refers to section vertical with the axis of super material panel in the super material panel.The longitudinal section of described super material panel is square, circular or oval, and preferably, the longitudinal section of described super material panel is square, and the super material panel that obtains is so easily processed, for example the square of 450X450mm.Circle can be that diameter is the circle of 450mm.

In the present embodiment, described core layer 10 comprises two core layer lamellas 11 that thickness is identical and refraction index profile is identical, and described core layer lamella 11 comprises the first base material 13 of sheet and is arranged on a plurality of first artificial micro-structural 12 on the first base material 13.In the present embodiment, preferably, as shown in Figure 4, described the first base material 13 comprises the first prebasal plate 131 and first metacoxal plate 132 of sheet, and the described a plurality of first artificial micro-structural 12 is folded between the first prebasal plate 131 and the first metacoxal plate 132.Preferably, the thickness of described core layer lamella 11 is 0.546mm, and wherein, the thickness of the first prebasal plate 131 and the first metacoxal plate 132 is 0.254mm, and the thickness of a plurality of first artificial micro-structural 12 is 0.038mm.

In the present embodiment, the refraction index profile of described core layer lamella satisfies following formula:

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

v _segment=ss+λ*num _segment （2）,

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

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

dis=d ₁+d ₂（5）,

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

${\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="HDA0000159127170000051.png"\; state="\{\{state\}\}">d</figure-callout>}}_2=\sin \mathrm{\&gamma;}*(L/2-y)---\left(7\right),$

$\mathrm{ss}=\sin \mathrm{\&gamma;}(L/2-y_{\mathrm{virtual}})-\cos \mathrm{\&gamma;}*z_{\mathrm{virtual}}---\left(8\right),$

Above formula is to set up coordinate system at super material panel, wherein super material panel central point is origin of coordinates O(0,0,0), satellite is at the central point of the subpoint of described wall, super material panel and the feed subpoint three point on a straight line at described wall, and described 3 conllinear is the y axle, and towards satellite in the subpoint direction of described wall for just, vertical described super material panel is the z axle, and outside wall for just;

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

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

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

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

λ represents the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ represents to send from particular satellite becomes with super material panel normal when the incident of super material panel surface;

Floor represents to round downwards;

P ₁(x _Source, y _Source, z _Source) coordinate of expression feed equivalent point;

P ₁' (x _Virtual, y _Virtual, z _Virtual) represent that the feed equivalent point is with respect to the coordinate of the symmetric points of coordinate surface xoy.

In the present embodiment, the metal micro structure of the described first artificial micro-structural for being consisted of by copper cash or silver-colored line, described metal micro structure is attached to respectively the first base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.Preferably, the described first artificial micro-structural is the alabastrine metal micro structure in plane shown in Figure 5 develops a plurality of different topology that obtains by topology metal micro structure.

In the present embodiment, the core layer lamella can obtain by the following method, namely cover copper on any one surface of the first prebasal plate and the first metacoxal plate, obtain a plurality of the first metal micro structures (shape of a plurality of the first metal micro structures with arrange in advance to obtain by Computer Simulation) by etching method again, at last the first prebasal plate and the first metacoxal plate are pressed together respectively, namely obtain core layer lamella of the present invention, the method of pressing can be direct hot pressing, also can be to utilize PUR to connect, certainly also other mechanical connection, for example bolt connects.

In the present embodiment, described the first base material is made 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.Preferably, among the present invention, the first prebasal plate of described the first base material adopts identical PS with the first metacoxal plate.

Figure 5 shows that the schematic diagram of the alabastrine metal micro structure in plane, described alabastrine metal micro structure has the first metal wire J1 and the second metal wire J2 that mutually vertically divides equally, described the first metal wire J1 is identical with the length of the second metal wire J2, described the first metal wire J1 two ends are connected with two the first F1 of metal branch of equal length, described the first metal wire J1 two ends are connected on the mid point of two the first F1 of metal branch, described the second metal wire J2 two ends are connected with two the second F2 of metal branch of equal length, described the second metal wire J2 two ends are connected on the mid point of two the second F2 of metal branch, the equal in length of described the first F1 of metal branch and the second F2 of metal branch.

Fig. 6 is a kind of derived structure of the alabastrine metal micro structure in plane shown in Figure 5.Its two ends at each first F1 of metal branch and each the second F2 of metal branch all are connected with identical the 3rd F3 of metal branch, and the mid point of corresponding the 3rd F3 of metal branch links to each other with the end points of the first F1 of metal branch and the second F2 of metal branch respectively.The rest may be inferred, and the present invention can also derive the metal micro structure of other form.

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure in plane shown in Figure 5, the metal micro structure of this kind structure, the first metal wire J1 and the second metal wire J2 are not straight lines, but folding line, the first metal wire J1 and the second metal wire J2 are provided with two kink WZ, 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 all overlap with former figure so that metal micro structure shown in Figure 7 winds perpendicular to the axis of the first metal wire and the second metal wire intersection point figure to any direction 90-degree rotation.In addition, other distortion can also be arranged, for example, the first metal wire J1 and the second metal wire J2 all arrange a plurality of kink WZ.

In the present embodiment, described core layer lamella 11 can be divided into a plurality of super material cell D as shown in Figure 3 of array arrangement, each super material cell D comprises prebasal plate unit U, metacoxal plate unit V and is arranged on the first artificial micro-structural 12 between base board unit U, the metacoxal plate unit V, usually the length and width height of super material cell D all is not more than 1/5th wavelength, be preferably 1/10th wavelength, therefore, can determine the size of super material cell D according to the operating frequency of antenna.Fig. 3 is the technique of painting of perspective, and with the position among the super material cell D that represents the first artificial micro-structural, as shown in Figure 3, the described first artificial micro-structural is sandwiched between base board unit U, the 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 are collectively referred to as electromagnetic parameter.Experiment showed, when electromagnetic wave passes through refractive index dielectric material heterogeneous, can be to the large direction deviation of refractive index.In the situation that relative permeability certain (usually near 1), refractive index is only relevant with dielectric constant, in the situation that the first base material is selected, utilize the arbitrary value (within the specific limits) that only can realize super material cell refractive index to the first artificial micro-structural of electric field response, under this center of antenna frequency (12.5GHZ), utilize simulation software, such as CST, MATLAB, COMSOL etc., obtain the situation that the dielectric constant of the artificial micro-structural (the alabastrine metal micro structure in plane as shown in Figure 5) of a certain given shape changes along with the refractive index variable of topology by emulation, can list one to one data, the core layer lamella 11 that the specific refractive index that can design us needs distributes, thus the refraction index profile of whole super material panel 100 obtained.

In the present embodiment, the structural design of core layer lamella can obtain by Computer Simulation (CST emulation), and is specific as follows:

That (1) determines the first metal micro structure adheres to base material (the first base material).Among the present invention, the first prebasal plate of described the first base material adopts identical PS plate with the first metacoxal plate, and described PS plate has a predetermined dielectric constant, and for example dielectric constant is 2.7 PS plate.

(2) size of definite super material cell.The size of the size of super material cell is obtained by the centre frequency of antenna, utilizes frequency to obtain its wavelength, gets less than 1/5th a numerical value of wavelength length C D and the width KD as super material cell D again.Among the present invention, described super material cell D is the square platelet that 2.8mm, thickness HD are 0.546mm for long CD and wide KD as shown in Figure 3.

(3) determine material and the topological structure of metal micro structure.Among 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 in plane shown in Figure 5, and its live width W is consistent everywhere; Topological structure herein refers to the basic configuration that topology develops.

(4) determine the topology parameter of metal micro structure.As shown in Figure 5, among the present invention, the topology parameter of the alabastrine metal micro structure in plane comprises the live width W of metal micro structure, the length a of the first metal wire J1, the length b of the first F1 of metal branch.

(5) determine the differentiation restrictive condition of the topology of metal micro structure.Among the present invention, the differentiation restrictive condition of the topology of metal micro structure has, the minimum spacing WL(between the metal micro structure namely as shown in Figure 8, the long limit of metal micro structure and super material cell or the distance of broadside are WL/2), the live width W of metal micro structure, the size of super material cell; Because the processing technology restriction, WL is more than or equal to 0.1mm, and same, live width W is greater than to equal 0.1mm.During for the first time emulation, WL can get 0.1mm, and W can get 0.3mm, and super material cell is of a size of the long and wide 2.8mm that is, thickness is 0.546mm, and this moment, the topology parameter of metal micro structure only had a and two variablees of b.The topology of metal micro structure by as Fig. 8 differentiation mode shown in Figure 9 extremely, corresponding to a certain characteristic frequency (for example 11.95GHZ), can obtain a continuous 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 metal micro structure shown in Figure 5):

Phase I: according to developing restrictive condition, in the situation that the b value remains unchanged, a value is changed to maximum from minimum value, the metal micro structure in this evolution process is " ten " font (except when a gets minimum value).In the present embodiment, the minimum value of a is 0.3mm(live width W), the maximum of a is (CD-WL).Therefore, in the phase I, the differentiation of the topology of metal micro structure is the square JX1 of W from the length of side namely as shown in Figure 8, develops into gradually maximum " ten " font topology JD1.In the phase I, along with the differentiation of the topology of metal micro structure, the refractive index of the super material cell corresponding with it increases (respective antenna one characteristic frequency) continuously.

Second stage: according to developing restrictive condition, when a was increased to maximum, a remained unchanged; At this moment, b is increased continuously maximum from minimum value, the metal micro structure in this evolution process is the plane flakes.In the present embodiment, the minimum value of b is 0.3mm(live width W), 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 " ten " font topology JD1 of maximum, develop into gradually the maximum alabastrine topology JD2 in plane, the alabastrine topology JD2 in the plane of maximum herein refers to, the length b of the first J1 of metal branch and the second J2 of metal branch can not extend again, otherwise the first metal branch and the second metal branch will occur to intersect.In second stage, along with the differentiation of the topology of metal micro structure, the refractive index of the super material cell corresponding with it increases (respective antenna one characteristic frequency) continuously.

If obtaining the satisfied design of the variations in refractive index scope needs of super material cell by above-mentioned differentiation (is that this excursion has comprised n _Min-n _MaxScope).Do not satisfy the design needs if above-mentioned differentiation obtains the variations in refractive index scope of super material cell, for example maximum is too little, then changes WL and W, and again emulation is until obtain the variations in refractive index scope that we need.

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

According to offset-feed type satellite tv antenna of the present invention, replaced traditional parabolic antenna by the super material panel of sheet, make processing and be more prone to, cost is cheaper, and the consistency of product is high, simultaneously, offset-feed type satellite tv antenna of the present invention directly is attached on the vertical wall in house, do not take up room, do not need complicated support yet, save further cost, and install simple, for example, can directly follow closely on wall with nail, or fasten with glue on wall.And the design that antenna is attached at wall has solved the windage problem of traditional parabolic antenna effectively.

Figure 10 is the structural representation of the another kind of embodiment of the present invention.In this enforcement, different is that super material panel 100 is divided into four cell boards 1000, and the longitudinal section of each cell board is that the length of side is the square of 200mm, by hinged mode, can fold between four cell boards 1000.Be conducive to like this processing and manufacturing and the installation and maintenance of antenna, the dismountable connection of a plurality of cell boards, perhaps a plurality of cell boards can fold by rotating connected mode, so that satellite antenna of the present invention when carrying, only occupies very little area.The formation of cell board 1000 can have following dual mode:

(1) isolate in flakes after the whole processing, this mode is fit to the super material flat board of less area.

(2) design the overall structure parameter of super material panel, before manufacturing, be about to it and be divided into a plurality of cell boards 1000, to the independent processing and manufacturing of these cell boards.This mode is fit to superhuge super material panel processing very much.

Cell board preferably adopts same size, so conveniently stacks, and the quantity of cell board can be set as required.

A plurality of cell board 1000 dismountable connections, such as can be that bolt connects, bonding, buckle connection etc.In the present embodiment, preferably, a plurality of cell boards 1000 can fold by rotating connected mode.

In addition, as shown in Figure 2, the present invention also provides the present invention that a kind of satellite television receiving system also is provided, comprise feed 1, connect the tuner 30 of feed 1 and the satellite receiver that is connected by cable with tuner 30 (not indicating among the figure) and offset-feed type satellite tv antenna TX of the present invention, described offset-feed type satellite tv antenna TX fixedly is attached on the vertical wall NQ, described feed 1 is fixed on the vertical wall in house by pole 40, pole 40 can directly be inserted wall, also can fix a mount pad 50 at wall first, again pole 40 is fixed on the mount pad.Among the present invention, described feed 1 is double-circle polarization corrugated horn, left-hand circular polarization corrugated horn or right-handed circular polarization corrugated horn, for example receive the satellite television programming of No. 9, culminant star, need to be equipped with the feed (because No. 9 existing left-hand circular polarizations of satellite television programming of culminant star have again right-handed circular polarization) of double-circle polarization.Satellite receiver and tuner also are existing technology, no longer describe in detail herein.

In addition, among the present invention, the incoming frequency of used tuner is 11.7 ~ 12.2GHz, and output frequency is 950 ~ 1450MHz, can watch most of Ku band satellite TV.The CL11R integral high frequency head of Tongzhou Electronics for example.

Receiver for example can adopt the N6188 of Tongzhou Electronics, be used for to receive the satellite TV signal of No. 9, culminant star.Receiver is placed on indoor usually.

In addition, feed of the present invention preferably, can be realized three-dimensional adjustable.With for different regions, do fine setting.Feed three-dimensional adjustable can also can arrange mechanical structure in the part that pole 40 is connected with feed by realization free to rotate between pole 40 and the mount pad 50 is set, but so that the relative pole Three dimensional rotation of feed.Have a lot of mechanical connection mechanisms that realize this function in the prior art, it is not core point of the present invention, therefore repeat no more.

The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.

Claims (13)

1. offset-feed type satellite tv antenna, it is characterized in that, described offset-feed type satellite tv antenna comprises the super material panel that fixedly is attached on the vertical wall, the reflecting plate that described super material panel comprises core layer and is arranged on core layer one side surface, described core layer comprises two core layer lamellas that thickness is identical and refraction index profile is identical, described core layer lamella comprises the first base material of sheet and is arranged on a plurality of first artificial micro-structural on the first base material, and the refraction index profile of described core layer lamella satisfies following formula:

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

v _segment＝ss+λ*num _segment，

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

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

dis＝d ₁+d ₂，

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

d ₂＝sinγ*(L/2-y)，

ss＝sinγ*(L/2-y _virtual)-cosγz _virtual，

Above formula is to set up coordinate system at super material panel, wherein super material panel central point is the origin of coordinates (0,0,0), satellite is at the central point of the subpoint of described wall, super material panel and the feed subpoint three point on a straight line at described wall, and described 3 conllinear is the y axle, and towards satellite in the subpoint direction of described wall for just, vertical described super material panel is the z axle, and outside wall for just;

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

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

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

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

λ represents the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ represents to send from particular satellite becomes with super material panel normal when the incident of super material panel surface;

Floor represents to round downwards;

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

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

2. offset-feed type satellite tv antenna according to claim 1 is characterized in that, described the first base material comprises the first prebasal plate and first metacoxal plate of sheet, and described a plurality of first artificial micro-structural is folded between the first prebasal plate and the first metacoxal plate.

3. offset-feed type satellite tv antenna according to claim 2, it is characterized in that, the thickness of described core layer lamella is 0.546mm, wherein, the thickness of the first prebasal plate and the first metacoxal plate is 0.254mm, and the thickness of a plurality of the first artificial micro-structurals is 0.038mm.

4. offset-feed type satellite tv antenna according to claim 1 is characterized in that, the arbitrary longitudinal section of described super material panel is of similar shape and area.

5. offset-feed type satellite tv antenna according to claim 4 is characterized in that, the longitudinal section of described super material panel is square, circular or oval.

6. offset-feed type satellite tv antenna according to claim 3, it is characterized in that, the metal micro structure of the described first artificial micro-structural for being made of copper cash or silver-colored line, described metal micro structure is attached to respectively the first base material by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.

7. offset-feed type satellite tv antenna according to claim 6, it is characterized in that, described metal micro structure is the plane flakes, described metal micro structure has the first metal wire and the second metal wire of mutually vertically dividing equally, described the first metal wire is identical with the length of the second metal wire, described the first metal wire two ends are connected with two the first metal branches of equal length, described the first metal wire two ends are connected on the mid point of two the first metal branches, described the second metal wire two ends are connected with two the second metal branches of equal length, described the second metal wire two ends are connected on the mid point of two the second metal branches, the equal in length of described the first metal branch and the second metal branch.

8. offset-feed type satellite tv antenna according to claim 7, it is characterized in that, each the first metal branch of the alabastrine metal micro structure in described plane and the two ends of each the second metal branch also are connected with identical the 3rd metal branch, and the mid point of corresponding the 3rd metal branch links to each other with the end points of the first metal branch and the second metal branch respectively.

9. offset-feed type satellite tv antenna according to claim 7, it is characterized in that, the first metal wire of the alabastrine metal micro structure in described plane and the second metal wire are provided with two kinks, and the alabastrine metal micro structure in described plane winds perpendicular to the axis of the first metal wire and the second metal wire intersection point figure to any direction 90-degree rotation and all overlaps with former figure.

10. satellite television receiving system, comprise feed, connect the tuner of feed and the satellite receiver that is connected with tuner, it is characterized in that, described satellite television receiving system also comprises such as the described offset-feed type satellite tv antenna of claim 1 to 9 any one, described offset-feed type satellite tv antenna fixedly is attached on the vertical wall, and described feed is fixed on the vertical wall in house by pole.

11. satellite television receiving system according to claim 10 is characterized in that, described feed is double-circle polarization corrugated horn, left-hand circular polarization corrugated horn or right-handed circular polarization corrugated horn.

12. satellite television receiving system according to claim 10 is characterized in that, the incoming frequency of used tuner is 11.7～12.2GHz, and output frequency is 950～1450MHz.

13. satellite television receiving system according to claim 10 is characterized in that, used feed three-dimensional is adjustable.

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