CN102677836A - Metamaterial-based multi-functional roof slab - Google Patents

Abstract

The invention discloses a metamaterial-based multi-functional roof slab, which comprises a metamaterial panel, wherein the metamaterial panel comprises at least one sheet substrate and a plurality of man-made conductive micro-structures arranged on the substrate; and the metamaterial panel can be used for converging electromagnetic wave signals transmitted by a satellite to a feed source of a satellite television receiving system. The metamaterial-based roof slab replaces the conventional roof slab and is used as a satellite signal receiving antenna, so that the metamaterial-based multi-functional roof slab has the functions of keeping out wind and rain and receiving satellite signals, and multiple functions of the roof slab are realized; and moreover, the sheet metamaterial panel replaces the traditional parabolic antenna, so that the metamaterial-based multi-function roof slab is easy to manufacture and process and low in cost, and potential safety hazards caused by rain and snow weather are eliminated. When the metamaterial-based multi-functional roof slab is applied to occasions where a mobile house which is required to be frequently moved, the convenience and superiority of the roof slab can be further reflected.

Description

Multi-functional roofing slab based on ultra material

Technical field

The present invention relates to building field, more particularly, relate to a kind of multi-functional roofing slab based on ultra material.

Background technology

The satellite earth receiving station that existing satellite television receiving system normally is made up of parabola antenna, feed, tuner, DVB.Parabola antenna is responsible for that satellite is passed the electromagnetic wave signal of coming and is reflexed to feed and the tuner that is positioned at along.Feed is loudspeaker that are used to collect satellite-signal in the along setting of parabola antenna, claims corrugated horn again.Its major function has two: the one, and the electromagnetic wave signal that antenna is received collects, and is transformed into signal voltage, the supply high frequency head.The 2nd, the electromagnetic wave that receives is carried out polarization conversion.

Tuner LNB (also claiming frequency demultiplier) carries out frequency reducing and signal with the satellite-signal that feed is sent here to amplify and be sent to DVB then.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 utilize local oscillation circuit that high-frequency signals is converted to intermediate frequency 950MHz-2050MHz again after earlier the satellite high-frequency signals being amplified to hundreds thousand of times, is beneficial to the transmission of coaxial cable and the mediation work of separating of DVB.DVB is that the satellite-signal that tuner transports is carried out demodulation, demodulates satellite television image or data signal and audio signal, and sends said signal to television set.

In general, the bore of said parabola antenna is big more, and signal of TV program is strong more, and the quality of reception is high more.For fear of the influence that obstruction receives said parabola antenna signal, the user is installed in said parabola antenna on the roofing slab on roof usually, thereby said roofing slab also is used to support said parabola antenna except being used to keep out wind and rain.Yet because existing said parabola antenna processed by metal material usually, thereby volume own is big, Heavy Weight, and when meeting bad weather such as wind, rain, snow, said roofing slab bears bigger pressure, is easy to generate fracture, causes great potential safety hazard.In addition, the Machining of Curved Surface difficulty of the reflecting surface of parabola antenna is big, and required precision is also high, therefore, make trouble, and cost is higher.

Summary of the invention

Technical problem to be solved by this invention is to the defective of existing satellite tv antenna and roofing slab existence, to provide a kind of and eliminate safe hidden trouble, process the multi-functional roofing slab based on ultra material simple, low cost of manufacture.

The technical solution adopted for the present invention to solve the technical problems is: a kind of multi-functional roofing slab based on ultra material; Said roofing slab comprises ultra material panel; Said ultra material panel comprises the base material of at least one synusia shape and is arranged on a plurality of artificial conductive micro structures on the said base material that said ultra material panel can be used for that satellite is passed the electromagnetic wave signal of coming and converges on the feed of satellite television receiving system.

Further, said base material is processed by the transparent material of light-permeable.

Further; Said ultra material panel comprises core layer; Said core layer comprises at least one core layer lamella; Said core layer lamella comprises the said base material of sheet and is arranged on a plurality of said artificial conductive micro structures on the said base material; Said core layer lamella can be divided into the border circular areas that is positioned at the centre position according to index distribution and be distributed in around the border circular areas and with a plurality of annular regions of the concyclic heart of said border circular areas; The refractive index at same radius place is identical in said border circular areas and the annular region, and the increase refractive index along with radius reduces gradually in border circular areas and annular region zone separately, and the minimum value of the refractive index of said border circular areas is less than the maximum value of the refractive index of the annular region that is adjacent; Adjacent two annular regions, the minimum value of refractive index that is in inboard annular region is less than the maximum value of the refractive index of the annular region that is in the outside.

Further, said core layer lamella also comprises the packed layer that covers artificial conductive micro structures.

Further, said core layer comprises the core layer lamella that a plurality of index distribution are identical and be parallel to each other.

Further, said ultra material panel also comprises the matching layer that is arranged on the core layer both sides, to realize the impedance matching from the air to the core layer.

Further, the said center of circle is the center of core layer lamella, and the variations in refractive index scope of said border circular areas and a plurality of annular regions is identical, and the refractive index n of said core layer lamella (r) distributes and satisfies following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{l^2+r^2}-l-\mathrm{k\λ}}{d};$

Wherein, radius is the refractive index value at r place on n (r) the expression core layer lamella;

L be feed arrive with its near the distance of matching layer, or l is the distance that feed arrives core layer;

D is the thickness of core layer, $d=\frac{\mathrm{\λ}}{n_{\mathrm{Max}}-n_{\mathrm{Min}}};$

n _MaxRefractive index maximum value on the expression core layer lamella;

n _MinRefractive index minimum value on the expression core layer lamella;

$k=\mathrm{Floor}\left(\frac{\sqrt{l^2+r^2}-l}{\mathrm{\λ}}\right),$ Floor representes downward round numbers.

Further, said matching layer comprises a plurality of matching layer lamellas, and each matching layer lamella has single refractive index, and the refractive index of a plurality of matching layer lamellas of the matching layer of core layer both sides all satisfies following formula:

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

Wherein, m representes total number of plies of matching layer, and i representes the numbering of matching layer lamella, wherein, and near the m that is numbered of the matching layer lamella of core layer.

Further; The a plurality of artificial conductive micro structures shape of each core layer lamella of said core layer is identical; The a plurality of artificial conductive micro structures at same radius place has identical physical dimension in said border circular areas and the annular region; And the physical dimension along with the artificial conductive micro structures of increase of radius in border circular areas and annular region zone separately reduces gradually; The physical dimension of the artificial conductive micro structures of physical dimension minimum is less than the physical dimension of the maximum artificial conductive micro structures of physical dimension in the annular region that is adjacent in the said border circular areas; Adjacent two annular regions are in the physical dimension of the physical dimension of the artificial conductive micro structures of physical dimension minimum in the inboard annular region less than the maximum artificial conductive micro structures of physical dimension in the annular region that is in the outside.

Further, said artificial conductive micro structures is alabastrine metal micro structure in plane or electrically conductive ink.

The invention has the beneficial effects as follows: the present invention through will based on the roofing slab of ultra material replacement prior roofs plate and with it as satellite signal receiving antenna; Thereby the present invention not only has the effect of keeping out wind and rain; But also have the effect of receiving satellite signal, realized the multifunction of roofing slab; In addition, replaced traditional parabola antenna by the ultra material panel of sheet, made processing and be more prone to, cost is cheaper, has eliminated the potential safety hazard that causes because of sleety weather.

Description of drawings

Fig. 1 is the structural representation of the multi-functional roofing slab based on ultra material of the present invention when cooperating with feed;

Fig. 2 is the perspective diagram of the ultra material cell of a kind of form of the present invention;

Fig. 3 is the index distribution sketch map of core layer lamella of the present invention;

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

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

Fig. 6 is the structural representation of the present invention when being laid on the roof.

The specific embodiment

Extremely shown in Figure 6 like Fig. 1; When the multi-functional roofing slab that the present invention is based on ultra material is laid on the roof; The feed 1 of satellite television receiving system is arranged on the below of said roofing slab; Can satellite be passed the electromagnetic wave signal of coming through said roofing slab converges on the said feed 1; Thereby the television set that is electrically connected with satellite television receiving system within doors can receive satellite TV signal, and the people in the room just can watch TV, and the present invention is applied in the frequent fields such as movable plank house that need resettlement and closes and can further embody its convenience and superiority.

The multi-functional roofing slab that the present invention is based on ultra material comprises ultra material panel 100, and in order to strengthen the intensity of said ultra material panel 100, the surface of said ultra material panel 100 can be smeared and reinforced UV glue etc.In the present embodiment; Said ultra material panel 100 comprises core layer 10, and said core layer 10 comprises at least one core layer lamella 11, and said core layer lamella comprises the base material 13 of sheet and is arranged on a plurality of artificial conductive micro structures 12 on the base material 13; Said core layer lamella 11 can be divided into the border circular areas Y that is arranged in the centre position according to index distribution and be distributed in around the border circular areas Y and (figure uses H1 respectively with a plurality of annular regions of the concyclic heart of said border circular areas; H2, H3, H4; H5 representes); The refractive index at same radius place is identical in said border circular areas Y and the annular region, and the increase refractive index along with radius reduces gradually in border circular areas and annular region zone separately, and the minimum value of the refractive index of said border circular areas is less than the maximum value of the refractive index of the annular region that is adjacent; Adjacent two annular regions, the minimum value of refractive index that is in inboard annular region is less than the maximum value of the refractive index of the annular region that is in the outside.

Said core layer lamella 11 is divided into border circular areas according to refractive index and a plurality of annular region is in order better to describe the present invention.Among the present invention, feed 1 is arranged on the axis of ultra material panel 100, and promptly feed 1 overlaps with the axis of ultra material panel 100 with the line at the center of core layer lamella 11.Said feed 1 has the support (not shown) to support.Feed 1 is preferably electromagnetic horn in addition.The annular had here both comprised annular region complete among Fig. 3, also comprised incomplete annular region among Fig. 3.Core layer lamella 11 among the figure is square, and certainly, also can be other shape, and is for example cylindrical, when its when being cylindrical, all annular regions can be complete annular regions.In addition, among Fig. 3, also can not have annular region H4 and H5, H4 and the H5 of this moment can be uniform index distribution (being on the position of H4 and H5 artificial conductive micro structures not to be set).

To shown in Figure 4, said core layer 10 comprises the core layer lamella 11 that a plurality of index distribution are identical and be parallel to each other like Fig. 1.A plurality of core layer lamellas 11 fit tightly, each other can be bonding through double faced adhesive tape, and perhaps through fixed connections such as bolts.Adjacent in addition core layer lamella 11 also comprises packed layer 15, and packed layer 15 can air, can be other dielectric-slab also, is preferably the plate-like piece of processing with base material 13 identical materials.The base material 13 of each core layer lamella 11 can be divided into a plurality of identical ultra material cell D; Each ultra material cell D is made up of an artificial conductive micro structures 12, unit base material V and unit packed layer W, and each core layer lamella 11 has only a ultra material cell D on thickness direction.Each ultra material cell D can be identical square; It can be cube; Also cuboid; The length physical dimension of each ultra material cell D is not more than 1/5th (are generally incident electromagnetic wave wavelength 1/10th) of incident electromagnetic wave wavelength, so that whole core layer has continuous electric field and/or magnetic responsiveness to electromagnetic wave.

Under the preferable case, said ultra material cell D is that the length of side is the cube of incident electromagnetic wave wavelength 1/10th.Certainly, the thickness of packed layer can be regulated, and its minimum value can be down to 0; That is to say does not need packed layer, and in such cases, base material and artificial conductive micro structures are formed ultra material cell; Promptly this moment ultra material cell D the thickness thickness that equals unit base material V add the thickness of artificial conductive micro structures, but at this moment, the thickness of ultra material cell D also will satisfy the requirement of 1/10th wavelength; Therefore, in fact, be selected under the situation of 1/10th wavelength at the thickness of ultra material cell D; The thickness of unit base material V is big more, and then the thickness of unit packed layer W is more little, under the optimum certainly situation; Promptly be situation as shown in Figure 2, promptly the thickness of unit base material V equals the thickness of unit packed layer W, and the material of unit base material V and packed layer W's is identical.

Artificial conductive micro structures 12 of the present invention is preferably metal micro structure, and said metal micro structure is made up of one or more wire.Wire itself has certain width and thickness.Metal micro structure of the present invention is preferably the metal micro structure with isotropic electromagnetic parameter, like the alabastrine metal micro structure in the described plane of Fig. 2.

For artificial conductive micro structures with plane structure; Isotropism; Be meant on this two dimensional surface with arbitrary electromagnetic wave of unspecified angle incident, the electric field response of above-mentioned artificial conductive micro structures on this plane is all identical with magnetic responsiveness, also is that dielectric constant is identical with magnetic conductivity; For the artificial conductive micro structures with three-dimensional structure, isotropism is meant that for incident electromagnetic wave on three-dimensional arbitrary direction, the electric field response of each above-mentioned artificial conductive micro structures on three dimensions is all identical with magnetic responsiveness.When artificial conductive micro structures was 90 degree rotational symmetry structures, artificial conductive micro structures promptly had isotropic characteristic.

For two-dimension plane structure, 90 degree rotation symmetries are meant that it revolves arbitrarily perpendicular to this plane and the axis of rotation of crossing its symmetrical centre around one and turn 90 degrees the back and overlap with original structure on this plane; For three-dimensional structure; If have 3 axis of rotation of vertical in twos and common intersection point (intersection point is a center of rotation); Make this structure revolve and turn 90 degrees the back and all overlaps perhaps symmetrically with an interface that then this structure is 90 to spend rotational symmetry structures with original structure with original structure around arbitrary axis of rotation.

The alabastrine metal micro structure in plane shown in Figure 2 is a kind of form of isotropic artificial conductive micro structures; Described alabastrine metal micro structure has first wire 121 and second wire of vertically dividing equally each other 122; Said first wire 121 two ends are connected with two first metal branches 1211 of equal length; Said first wire 121 two ends are connected on the mid point of two first metal branches 1211; Said second wire 122 two ends are connected with two second metal branches 1221 of equal length, and said second wire 122 two ends are connected on the mid point of two second metal branches 1221.

Known refractive index

wherein μ is a relative permeability; ε is a relative dielectric constant, and μ and ε close and be called electromagnetic parameter.Experiment showed, when electromagnetic wave passes through refractive index dielectric material heterogeneous, can be to the big direction deviation of refractive index (to the big ultra material cell deviation of refractive index).Therefore core layer of the present invention has the effect of converging to electromagnetic wave, and the index distribution of appropriate design core layer can be so that the electromagnetic wave that satellite sends converges on the feed 1 after through core layer.Under the selected situation of the material of the material of base material and packed layer; The electromagnetic parameter that can obtain ultra material internal through shape, physical dimension and/or artificial conductive micro structures the arranging on base material of designing artificial conductive micro structures distributes, thereby designs the refractive index of each ultra material cell.At first calculate the electromagnetic parameter spatial distribution (being the electromagnetic parameter of each ultra material cell) of excess of export material internal from the needed effect of ultra material; Select shape, the physical dimension (having deposited multiple artificial conductive micro structures data in the computer in advance) of the artificial conductive micro structures on each ultra material cell according to the spatial distribution of electromagnetic parameter; Design to each ultra material cell can be used the method for exhaustion; For example earlier selected artificial conductive micro structures with given shape calculates electromagnetic parameter, the contrast that the result who obtains and we are wanted; Circulation repeatedly; Till the electromagnetic parameter that finds us to want,, then accomplished the parameter choosing of artificial conductive micro structures if found; If do not find, then change a kind of artificial conductive micro structures of shape, the circulation above repeating is till the electromagnetic parameter that finds us to want.If still do not find, then said process can not stop yet.That is to say the artificial conductive micro structures of the electromagnetic parameter that has only found our needs, program just can stop.Because this process is all accomplished by computer, therefore, seem complicated, can accomplish soon in fact.

The base material 13 of said core layer 10 is made by ceramic materials, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material etc.Macromolecular material is available to have polytetrafluoroethylene (PTFE), epoxy resin, F4B composite material, FR-4 composite material etc.For example, the electrical insulating property of polytetrafluoroethylene (PTFE) is very good, therefore can not produce electromagnetic electric field and disturb, and have excellent chemical stability, corrosion resistance, long service life.In the present embodiment; Can introduce extraneous light in order to make within doors; Said base material 13 is processed by the transparent material of light-permeable; Said transparent material can be Merlon (PC), polystyrene (PS), ethylene-vinyl acetate copolymer (PMMA) etc., thereby it can solve some ambient light deficiency and cause dim within doors problem.

Among the present invention, said metal micro structure is wires such as copper cash or silver-colored line.Above-mentioned wire can be through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the base material.Certainly, also can adopt three-dimensional laser processing technology.

As shown in Figure 1, be the structural representation of the ultra material panel of first embodiment of the invention, in the present embodiment, said ultra material panel also comprises the matching layer 20 that is arranged on the core layer both sides, to realize from the air to the core layer 10 refractive index coupling.We know that it is big more that the refractive index between the medium differs, and then electromagnetic wave reflects big more when a medium incides another medium.Reflection is big; Mean the loss of energy; The coupling that at this time just needs refractive index; Known refractive index wherein μ is a relative permeability, and ε is a relative dielectric constant, and μ and ε close and be called electromagnetic parameter.We know that the refractive index of air is 1; Therefore, when the design matching layer, the matching layer of electromagnetic wave light incident side designs like this; Promptly basic identical, as to join with it near the refractive index of a side of core layer basic identical the getting final product of core layer lamella refractive index near the refractive index and the air of a side of air; The then relative core layer symmetry of the matching layer design of electromagnetic wave exiting side comes to get final product.Like this, just realized the refractive index coupling of core layer, reduced reflection, i.e. energy loss can reduce greatly, like this electromagnetic wave can transmit farther.

In the present embodiment; Like Fig. 1 and shown in Figure 3; The center of circle of said border circular areas Y is the center O of core layer lamella 11, and the variations in refractive index scope of said border circular areas Y and a plurality of annular regions is identical, and the refractive index n of said core layer lamella 11 (r) distributes and satisfies following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{l^2+r^2}-l-\mathrm{k\λ}}{d}---\left(1\right);$

Wherein, radius is the refractive index value at r place on n (r) the expression core layer lamella; Also be that radius is the refractive index of the ultra material cell of r on the core layer lamella; The radius mid point that refers to each unit base material V is to the distance of the center O (center of circle) of core layer lamella here, and the mid point of the unit base material V here refers to the surperficial mid point of unit base material V and mid point O conplane.

L be feed 1 to its near the distance of matching layer 20:

D is the thickness of core layer, $d=\frac{\mathrm{\λ}}{n_{\mathrm{Max}}-n_{\mathrm{Min}}}---\left(2\right);$

n _MaxRefractive index maximum value on the expression core layer lamella 11;

n _MinRefractive index minimum value on the expression core layer lamella 11; The variations in refractive index scope of said border circular areas Y and a plurality of annular regions is identical, is meant border circular areas Y, and a plurality of annular region refractive indexes all are from inside to outside by n _MaxBe reduced to n continuously _MinAs an example, n _MaxCan value 6, n _MinValue 1, that is, and border circular areas Y, and a plurality of annular region refractive indexes all are to be reduced to 1 continuously by 6 from inside to outside.

floor representes downward round numbers; K can be used for representing the numbering of border circular areas and annular region, works as k=0, and the expression border circular areas when k=1, is represented first annular region adjacent with border circular areas; When k=2, represent second annular region that first annular region is adjacent; The rest may be inferred.What annular regions are the maximum value that is r confirmed to have.(normally 1/10th of the incident electromagnetic wave wavelength) that the thickness of each core layer lamella is normally certain, like this, under the selected situation of core layer shape (can be cylindrical or square), the size of core layer lamella just can be confirmed.

By formula (1), formula (2), the determined core layer 10 of formula (3), can guarantee that the electromagnetic wave that satellite sends converges on the feed.This perhaps utilizes optical principle can obtain (promptly utilizing equivalent optical path to calculate) through computer simulation emulation.

In the present embodiment, the thickness of core layer lamella 11 is certain, usually below 1/5th of incident electromagnetic wave wavelength X, and preferably 1/10th of the incident electromagnetic wave wavelength X.Like this, when design, if selected the number of plies of core layer lamella 11, then the thickness d of core layer has just been confirmed, therefore, for the roofing slab (wavelength is different) of different frequency, we know by formula (2), through appropriate design (n _Max-n _Min) value, just can obtain arbitrarily the roofing slab of the frequency that we want.For example, C-band and Ku wave band.The frequency range of C-band is 3400MHz～4200MHz.Frequency 10.7～the 12.75GHz of Ku wave band wherein can be divided into frequency ranges such as 10.7～11.7GHz, 11.7～12.2GHz, 12.2～12.75GHz.

As shown in Figure 1, in the present embodiment, said matching layer 20 comprises a plurality of matching layer lamellas 21, and each matching layer lamella 21 has single refractive index, and the refractive index of a plurality of matching layer lamellas of the matching layer of core layer both sides all satisfies following formula:

$n\left(i\right)={((n_{\max }+n_{\min })/2)}^{\frac{i}{m}}---\left(4\right);$

Wherein, m representes total number of plies of matching layer, and i representes the numbering of matching layer lamella, wherein, and near the m that is numbered of the matching layer lamella of core layer.We can find out from formula (4), and the relative core layer of refractive index of a plurality of matching layer lamellas of the refractive index of a plurality of matching layer lamellas of core layer 10 1 sides and core layer 10 1 sides is symmetrical set.The largest refractive index n of setting of matching layer (total number of stories m) and core layer _MaxWith minimum refractive index n _MinDirect relation is arranged; When i=1, represent the 1st layer refractive index, because it will equal the refractive index 1 of air basically, therefore, as long as n _MaxWith n _MinConfirm, then can confirm total number of stories m.

Matching layer 20 can be a plurality ofly to be had single refractive index materials and process by what occurring in nature existed; Also with matching layer as shown in Figure 5; It comprises a plurality of matching layer lamellas 21; Each matching layer lamella 21 comprises first substrate 22 and second substrate 23 that material is identical, fills air between said first substrate 21 and second substrate 22.The ratio of the volume through control air and the volume of matching layer lamella 21; Can realize the change of refractive of refractive index from 1 (refractive index of air) to first substrate; Thereby refractive index that can each matching layer lamella of appropriate design realizes the refractive index coupling from the air to the core layer.

Fig. 4 is a kind of core layer lamella 11 of form; A plurality of artificial conductive micro structures 12 shapes of each core layer lamella 11 of said core layer are identical; Be the alabastrine metal micro structure in plane; And the central point of metal micro structure overlaps with the mid point of unit base material V; The a plurality of artificial conductive micro structures at same radius place has identical physical dimension in said border circular areas and the annular region; And the physical dimension along with the artificial conductive micro structures 12 of the increase of radius in border circular areas and annular region zone separately reduces gradually; The physical dimension of the artificial conductive micro structures of physical dimension minimum is less than the physical dimension of the maximum artificial conductive micro structures of physical dimension in the annular region that is adjacent in the said border circular areas, and adjacent two annular regions are in the physical dimension of the physical dimension of the minimum artificial conductive micro structures of the interior physical dimension of inboard annular region less than the maximum artificial conductive micro structures of physical dimension in the annular region outside being in.Reduce and reduce gradually because the refractive index of each ultra material cell is the size along with metal micro structure; Therefore artificial conductive micro structures physical dimension is big more; Then its corresponding refractive index is big more, therefore, can realize the index distribution distribution of (1) by formula of core layer lamella through this mode.

According to different needs (different electromagnetic waves), and different design demand, core layer 10 can comprise the core layer lamella 11 as shown in Figure 4 of the different numbers of plies.

The present invention also has second kind of embodiment, the difference of second embodiment and first embodiment be the l in refractive index n (r) distribution formula of core layer lamella 11 represent feed to the distance of core layer (among first embodiment l represent feed arrive with its near the distance of matching layer); The roof is assembled by the roofing slab of some small sizes, and the variations in refractive index of said roof integral body is identical with the variations in refractive index of one of first embodiment big roofing slab.

In sum; The present invention through will based on the roofing slab of ultra material replacement prior roofs plate and with it as satellite signal receiving antenna; Thereby the present invention not only has the effect of keeping out wind and rain, but also has the effect of receiving satellite signal, realized the multifunction of roofing slab; In addition, replaced traditional parabola antenna by the ultra material panel of sheet, made processing and be more prone to, cost is cheaper, has eliminated the potential safety hazard that causes because of sleety weather.

Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.

Claims (10)

1. multi-functional roofing slab based on ultra material; It is characterized in that; Said roofing slab comprises ultra material panel; Said ultra material panel comprises the base material of at least one synusia shape and is arranged on a plurality of artificial conductive micro structures on the said base material that said ultra material panel can be used for that satellite is passed the electromagnetic wave signal of coming and converges on the feed of satellite television receiving system.

2. the multi-functional roofing slab based on ultra material according to claim 1 is characterized in that said base material is processed by the transparent material of light-permeable.

3. the multi-functional roofing slab based on ultra material according to claim 1 and 2; It is characterized in that; Said ultra material panel comprises core layer; Said core layer comprises at least one core layer lamella; Said core layer lamella comprises the said base material of sheet and is arranged on a plurality of said artificial conductive micro structures on the said base material, said core layer lamella can be divided into the border circular areas that is positioned at the centre position according to index distribution and be distributed in around the border circular areas and with a plurality of annular regions of the concyclic heart of said border circular areas, the refractive index at same radius place is identical in said border circular areas and the annular region; And the increase refractive index along with radius in border circular areas and annular region zone separately reduces gradually; The minimum value of the refractive index of said border circular areas is less than the maximum value of the refractive index of the annular region that is adjacent, adjacent two annular regions, and the minimum value of refractive index that is in inboard annular region is less than the maximum value of the refractive index of the annular region that is in the outside.

4. the multi-functional roofing slab based on ultra material according to claim 3 is characterized in that said core layer lamella also comprises the packed layer that covers artificial conductive micro structures.

5. the multi-functional roofing slab based on ultra material according to claim 4 is characterized in that said core layer comprises the core layer lamella that a plurality of index distribution are identical and be parallel to each other.

6. the multi-functional roofing slab based on ultra material according to claim 5 is characterized in that said ultra material panel also comprises the matching layer that is arranged on the core layer both sides, to realize the impedance matching from the air to the core layer.

7. the multi-functional roofing slab based on ultra material according to claim 6; It is characterized in that; The said center of circle is the center of core layer lamella, and the variations in refractive index scope of said border circular areas and a plurality of annular regions is identical, and the refractive index n of said core layer lamella (r) distributes and satisfies following formula:

$n\left(r\right)=n_{\max }-\frac{\sqrt{l^2+r^2}-l-\mathrm{k\λ}}{d}$

；

Wherein, radius is the refractive index value at r place on n (r) the expression core layer lamella;

L be feed arrive with its near the distance of matching layer, or l is the distance that feed arrives core layer;

D is the thickness of core layer, $d=\frac{\mathrm{\λ}}{n_{\mathrm{Max}}-n_{\mathrm{Min}}};$

n _MaxRefractive index maximum value on the expression core layer lamella;

n _MinRefractive index minimum value on the expression core layer lamella;

$k=\mathrm{Floor}\left(\frac{\sqrt{l^2+r^2}-l}{\mathrm{\λ}}\right),$ Floor representes downward round numbers.

8. the multi-functional roofing slab based on ultra material according to claim 7; It is characterized in that; Said matching layer comprises a plurality of matching layer lamellas, and each matching layer lamella has single refractive index, and the refractive index of a plurality of matching layer lamellas of the matching layer of core layer both sides all satisfies following formula:

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

Wherein, m representes total number of plies of matching layer, and i representes the numbering of matching layer lamella, wherein, and near the m that is numbered of the matching layer lamella of core layer.

9. the multi-functional roofing slab based on ultra material according to claim 3; It is characterized in that; The a plurality of artificial conductive micro structures shape of each core layer lamella of said core layer is identical; The a plurality of artificial conductive micro structures at same radius place has identical physical dimension in said border circular areas and the annular region; And the physical dimension along with the artificial conductive micro structures of increase of radius in border circular areas and annular region zone separately reduces gradually; The physical dimension of the artificial conductive micro structures of physical dimension minimum is less than the physical dimension of the maximum artificial conductive micro structures of physical dimension in the annular region that is adjacent in the said border circular areas; Adjacent two annular regions are in the physical dimension of the physical dimension of the artificial conductive micro structures of physical dimension minimum in the inboard annular region less than the maximum artificial conductive micro structures of physical dimension in the annular region that is in the outside.

10. according to claim l or 2 described multi-functional roofing slabs, it is characterized in that said artificial conductive micro structures is alabastrine metal micro structure in plane or electrically conductive ink based on ultra material.

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