CN102810768A - Metamaterial satellite antenna and satellite receiving system - Google Patents

Abstract

The invention provides a metamaterial satellite antenna which comprises a feed source and a metamaterial panel. The metamaterial panel comprises a core layer and a reflection surface arranged on the rear surface of the core layer. The reflection surface is a conductive polymer film made of conductive polymer material. The invention further relates to a satellite receiving system. The reflection surface is a conductive polymer film made of conductive polymer material, and accordingly weight of the metamaterial satellite antenna is lightened, and warping of the metamaterial satellite antenna is prevented.

Description

A kind of ultra material satellite antenna and satellite receiving system

[technical field]

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

[background technology]

Ultra material be grow up over past ten years electromagnetic wave is played the material of modulating action.Ultra material generally be the metal micro structure by some be attached to have certain mechanics, on the electromagnetic substrate, these micro-structurals with specific pattern and material can produce modulating action to the electromagnetic wave through the special frequency of its body.

Existing satellite antenna, for example satellite television receiving antenna adopts traditional reflector antenna to be generally parabolic antenna usually, and parabolic antenna is responsible for the signal reflex that receives to the signal receiver that is positioned at along.

Reception after parallel electromagnetic wave (because satellite is quite far away with the distance of the earth, its electromagnetic wave that sends can be thought plane wave when arriving ground) reflects through parabolic antenna, converges on the signal receiver during from electromagnetic wave signal that satellite transmits.

Reflective ultra material satellite antenna generally adopts metal covering as the reflector, and when adopting metal covering as the reflector, because of metal covering is a block of metal, and ultra material function face is discrete micro-structural, and two-layer shrinkage is inconsistent, the easy warpage of product.

The structural type macromolecule conducting material is meant macromolecular structure itself or after overdoping, has the macromolecular material of conducting function.Be meant macromolecular structure itself or after overdoping, have the macromolecular material of conducting function.Size according to conductivity can be divided into semiconducting polymer, high-molecule metal and macromolecule superconductor again.Can be divided into electron conduction macromolecular material and ionic conduction macromolecular material according to electrical conduction mechanism.The design feature of electron conduction macromolecular material is to have line style or the big conjugated system of face type, and the activation through conjugated pi electron under the effect of heat or light is conducted electricity, and conductivity is generally in semi-conductive scope.Adopt doping techniques that the electric conductivity of this type material is improved greatly.Like a small amount of iodine that in polyacetylene, mixes, conductivity can improve 12 one magnitude, becomes " high-molecule metal ".Polysulfur nitride after mixing can be transformed into the macromolecule superconductor under ultralow temperature.The structural type macromolecule conducting material is used to manufacture experimently light plastic storage battery, solar cell, senser element, microwave absorbing material and trial-production semiconductor components and devices etc.

[summary of the invention]

Technical problem to be solved by this invention is: it is the ultra material satellite antenna of reflecting surface that a kind of conductive polymer film that adopts is provided, and prevents the warpage of ultra material satellite antenna.

The technical solution adopted for the present invention to solve the technical problems is: a kind of ultra material satellite antenna, said ultra material satellite antenna comprise feed and ultra material flat board, the reflecting surface on surface after said ultra material flat board comprises core layer and is arranged on core layer; Said reflecting surface is the conductive polymer film that conducting polymer composite is processed.

Said conducting polymer composite comprises polypyrrole, polyphenylene sulfide, gathers phthalocyanine-like compound, polyparaphenylene, polyaniline or polythiophene.

Said core layer comprises that substrate reaches a plurality of metal micro structures attached to the substrate front surface.

Said reflecting surface is attached to the back surface of said substrate.

Said ultra material satellite antenna also comprises the diaphragm that covers on the metal micro structure.

Said diaphragm is PS plastics, PET plastics or HIPS plastics, and the thickness of said diaphragm is 0.1-2mm.

Plane with certain geometrical shape or the stereochemical structure of said metal micro structure for constituting by wire.

Said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the said substrate.

A kind of satellite receiving system comprises satellite antenna, connects the DVB of signal receiver, and said satellite antenna is above-mentioned ultra material satellite antenna.

Beneficial effect of the present invention is: what reflecting surface adopted is the conductive polymer film that conducting polymer composite is processed, and has not only alleviated the quality of ultra material satellite antenna, has also prevented the warpage of ultra material satellite antenna.

[description of drawings]

Fig. 1 is the structural representation of ultra material satellite antenna of the present invention.

[embodiment]

In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

As shown in Figure 1; Ultra material satellite antenna according to the present invention comprises the ultra material dull and stereotyped 100 that is arranged on the feed rear; The reflecting surface 200 on surface after ultra material dull and stereotyped 100 comprises core layer 10 and is arranged on core layer; Core layer 10 comprises that organic resin substrate reaches a plurality of metal micro structures attached to organic resin substrate front surface, and surface attachment has reflecting surface behind the organic resin substrate; Comprise that also the thickness that covers on the metal micro structure is the diaphragm of 0.1-2mm, diaphragm is plastics such as PS plastics, PET plastics or HIPS plastics; Key point of the present invention is: reflecting surface is the conductive polymer film that conducting polymer composite is processed; Conducting polymer composite comprises polypyrrole, polyphenylene sulfide, gathers phthalocyanine-like compound, polyparaphenylene, polyaniline or polythiophene; Not only alleviate the quality of ultra material satellite antenna, also prevented the warpage of ultra material satellite antenna.

Plane with certain geometrical shape or the stereochemical structure of metal micro structure for constituting by wire, metal micro structure can through etching, plating, brill quarter, photoetching, electronics is carved or the method at ion quarter attached on the said substrate.

With the polypyrrole is example, and the preparation method of electric polypyrrole film is following:

Be placed on pyrrole monomer solution and liquor ferri trichloridi in the reaction vessel respectively; Substrate immersion back in coupling agent that one side is attached with metal micro structure is taken out, the another side of this substrate that soaked coupling agent was sprayed pyrrole monomer solution 2～5 minutes continuously, spray liquor ferri trichloridi after 30～60 seconds again at air drying and carry out chemical polymerization; From reaction vessel, take out after about 4～8 minutes; Can deposit the thin film layer on the substrate, promptly the electric polypyrrole film is used washed with de-ionized water with the print that takes out at last; Clean with absolute ethyl alcohol again, dry then.

With the polyacetylene is example, and the preparation method of conduction polyacetylene film is following:

Be placed on ethane monomer solution and iodine solution in the reaction vessel respectively; Substrate immersion back in coupling agent that one side is attached with metal micro structure is taken out, the another side of this substrate that soaked coupling agent was sprayed ethane monomer solution 3～7 minutes continuously, spray iodine solution after 20～40 seconds again at air drying and carry out chemical polymerization; From reaction vessel, take out after about 4～10 minutes; Can deposit the thin film layer on the substrate, promptly conduct electricity the polyacetylene film, at last the print that takes out used washed with de-ionized water; Clean with absolute ethyl alcohol again, dry then.

With the polyaniline is example, and the preparation method of conduction polyacetylene film is following:

Be placed on aniline monomer solution and hydrogenperoxide steam generator in the reaction vessel respectively; Substrate immersion back in coupling agent that one side is attached with metal micro structure is taken out, the another side of this substrate that soaked coupling agent was sprayed aniline monomer solution 5～7 minutes continuously, spray hydrogenperoxide steam generator after 40～60 seconds again at air drying and carry out chemical polymerization; From reaction vessel, take out after about 5～10 minutes; Can deposit the thin film layer on the substrate, promptly conductive polyaniline film is used washed with de-ionized water with the print that takes out at last; Clean with absolute ethyl alcohol again, dry then.

Feed 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 right-handed circular polarization again, so feed should adopt the corrugated horn of double-circle polarization.The dull and stereotyped 100 arbitrary longitudinal sections of ultra material are of similar shape and area, and the longitudinal section here is meant in the ultra material flat board the vertical section in axis with ultra material flat board.The dull and stereotyped longitudinal section of ultra material is square, circular or oval, and preferably, the dull and stereotyped longitudinal section of ultra material is square, and the ultra material that obtains like this is dull and stereotyped to be processed easily, the square of 300 * 300mm or 450 * 450mm for example, the rectangle of 450 * 475mm.Circle can be that diameter is 250,300 or the circle of 450mm.

The refraction index profile of core layer satisfies following formula:

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

v _segment＝ss+λ*num _segment (2)；

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

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

dis＝d ₁+d ₂ (5)；

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

d ₂＝sinγ*(L/2-y) (7)；

ss＝sinγ*(L/2-y _virtual)-cosγ*z _virtual (8)；

Above formula is on ultra material flat board, to set up coordinate system, and the dull and stereotyped central point of wherein ultra material is the origin of coordinates (0,0; 0); Satellite is at the subpoint on the said vertical wall, ultra material dull and stereotyped central point and the subpoint three point on a straight line of feed on said vertical wall, and said 3 conllinear is the y axle, and towards the direction of satellite on said vertical wall for just; Vertical said ultra material flat board is the z axle, and outside wall surface for just;

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

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

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

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

λ representes the electromagnetic wavelength that satellite tv antenna receives;

The angle that the electromagnetic wave that γ representes to send from particular satellite is become with the dull and stereotyped normal of ultra material when ultra material planar surface incident;

Floor representes to round downwards;

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

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

The refraction index profile of core layer also can satisfy following formula:

$n(x,y)=n_{\max }-\frac{\mathrm{dis}-v_{\mathrm{segment}}}{\stackrel{\‾}{D}}---\left(1\right);$

v _segment＝ss+λ*num _segment (2)；

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

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

dis＝d ₁+d ₂ (5)；

$d_1=\sqrt{{(x-x_{\mathrm{source}})}^2+{(y-y_{\mathrm{source}})}^2+z_0^2}---\left(6\right);$

d ₂＝cosα*(L-y) (7)；

ss＝cosα*(L-y _source)-sinα*z ₀ (8)；

Above formula is on ultra material panel, to set up coordinate system, and wherein, the lower left corner of ultra material front surface is designated as the origin of coordinates 0 (0,0), and said ultra material panel front surface is coordinate surface XOY;

N (x, y) refractive index value of any arbitrarily on the expression core layer lamella;

L representes the length of core layer lamella abscissa direction;

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 representes the electromagnetic wavelength that satellite tv antenna receives;

Floor representes to round downwards;

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

Z0 representes the distance of feed equivalent point to ultra material panel surface;

α representes the elevation angle of satellite in the locality.

Dull and stereotyped by first group of formula (1) to formula (8) or the determined ultra material of second group of formula (1) to formula (8), the plane wave that can make antenna receive can converge at feed equivalent point place behind ultra material flat board.

Ultra material satellite antenna of the present invention is when using as transmitting antenna, and promptly feed is as radiation source, and the dull and stereotyped effect of ultra material is the form outgoing with plane wave behind ultra material flat board of plane wave that signal receiver is sent.

Ultra material satellite antenna of the present invention is when using as reception antenna, and promptly feed is as wave collecting device, and the dull and stereotyped effect of ultra material is that the plane wave that can make antenna receive can converge at feed equivalent point place behind ultra material flat board.

The ultra material satellite antenna of more than describing is different according to working frequency range and environment for use, can be satellite television receiving antenna, satellite communication antena (two-way communication), microwave antenna or radar antenna.Certainly, said ultra material satellite antenna of the present invention can also substitute other various reflector antennas.

In addition, the present invention also provides the present invention that a kind of satellite receiving system also is provided, and comprises the DVB (not indicating among the figure) of satellite antenna, signal receiver, connection signal receiver, and said satellite antenna is the above-mentioned ultra material satellite antenna of the present invention.Among the present invention, said signal receiver is traditional corrugated horn.DVB for example can adopt the N6188 of Tongzhou Electronics, is used to receive the satellite TV signal of No. 9, culminant star, and it is existing technology, no longer states here.

Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned 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 (9)

1. ultra material satellite antenna, said ultra material satellite antenna comprise that feed and ultra material are dull and stereotyped, the reflecting surface on surface after said ultra material flat board comprises core layer and is arranged on core layer; It is characterized in that said reflecting surface is the conductive polymer film that conducting polymer composite is processed.

2. ultra material satellite antenna according to claim 1 is characterized in that, said conducting polymer composite comprises polypyrrole, polyphenylene sulfide, gathers phthalocyanine-like compound, polyparaphenylene, polyaniline or polythiophene.

3. ultra material satellite antenna according to claim 1 is characterized in that, said core layer comprises that substrate reaches a plurality of metal micro structures attached to the substrate front surface.

4. according to claim 1 or 3 described ultra material satellite antennas, it is characterized in that said reflecting surface is attached to the back surface of said substrate.

5. ultra material satellite antenna according to claim 1 is characterized in that, said ultra material satellite antenna also comprises the diaphragm that covers on the metal micro structure.

6. ultra material satellite antenna according to claim 5 is characterized in that, said diaphragm is PS plastics, PET plastics or HIPS plastics, and the thickness of said diaphragm is 0.1-2mm.

7. ultra material satellite antenna according to claim 1 is characterized in that, plane with certain geometrical shape or the stereochemical structure of said metal micro structure for being made up of wire.

8. ultra material satellite antenna according to claim 7 is characterized in that, said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method attached on the said substrate.

9. satellite receiving system comprises satellite antenna, connects the DVB of signal receiver, it is characterized in that said satellite antenna is any described ultra material satellite antenna of claim 1 to 8.

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