CN105098349B - A kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency selects antenna house - Google Patents
A kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency selects antenna house Download PDFInfo
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- CN105098349B CN105098349B CN201510530691.0A CN201510530691A CN105098349B CN 105098349 B CN105098349 B CN 105098349B CN 201510530691 A CN201510530691 A CN 201510530691A CN 105098349 B CN105098349 B CN 105098349B
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Abstract
The present invention relates to a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequencies to select antenna house, including at least one metamaterial sheet and first substrate, and the first substrate in metamaterial sheet can be divided into multiple metamaterial units；It is characterized by: each metamaterial sheet includes media substrate, cellular type core, metal micro structure, one layer of metal micro structure is pressed from both sides among two layers of media substrate, cellular type core layer is connect with medium substrate layer, provides whole rigidity；The metal micro structure is field word structure in the collar extension of hollow out, and the outline border corner location of interior field word machine structure does not connect.By adhering to the man-made microstructure of specific shape on substrate, the electromagnetic response needed, so that the wave transparent performance enhancement of the antenna house based on Meta Materials, anti-interference ability increases.
Description
Technical field
The present invention relates to a kind of antenna houses, more specifically to a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency
Select antenna house.
Background technique
Meta Materials are commonly called as Meta Materials, are a kind of novel artificial synthetic materials, are the substrates made of nonmetallic materials and attached
On the surface of the substrate or multiple man-made microstructures for being embedded in inside substrate are constituted.Substrate can be virtually divided into rectangle
Multiple base board units of array arrangement are attached with man-made microstructure on each base board unit, so that a metamaterial unit is formed,
Entire Meta Materials are made of many such metamaterial units, just as crystal is by countless lattices according to certain arrangement
It constitutes.Man-made microstructure in each metamaterial unit can be identical or not exactly the same.Man-made microstructure is by metal
Plane or stereochemical structure with certain geometric figure of silk composition, such as composition circular ring shape, I-shaped wire etc..
Due to the presence of man-made microstructure, each metamaterial unit has the electromagnetic property different from substrate itself, therefore
The Meta Materials that all metamaterial units are constituted show special response characteristic to electric and magnetic fields；By to man-made microstructure
Design different specific structure and shape, thus it is possible to vary the response characteristic of entire Meta Materials.
In general, it illustrates such as:, can be by wave number due to transmitting the change of wave number after traditional sucrose material is filled in waveguide
It is determined again by the structure size of waveguide, so, time high the mould even interference of higher mode can be generated after waveguide filled media.Again
It, after filled media, due to the mismatch of impedance, it will generate back wave, this is particularly evident in HIGH-POWERED MICROWAVES system.
Summary of the invention
The object of the present invention is to provide a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequencies to select antenna house, above-mentioned to solve
At least one aspect of problem.
According to an aspect of the present invention, a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency is provided and selects antenna house, including
At least one metamaterial sheet and first substrate, the first substrate in metamaterial sheet can be divided into multiple metamaterial units；Often
One metamaterial sheet includes media substrate, cellular type core, metal micro structure, presss from both sides one layer of micro- knot of metal among two layers of media substrate
Structure, cellular type core layer are connect with medium substrate layer, provide whole rigidity；The metal micro structure is field word in the collar extension of hollow out
Structure, and the outline border corner location of interior field word machine structure does not connect.
In certain embodiments of the present invention, the length of each metamaterial unit and width are 5mm.
In certain embodiments of the present invention, field word structure includes collar extension word knot in the hollow out collar extension of metal micro structure
Structure, interior field word structure, collar extension word structure with a thickness of 0.1mm；Interior field word structure includes the cross of two square crossings, mouth word
Frame, the length of the cross are 2mm, and the side length of mouth edge frame is 1.4mm；The hem width degree of the interior field word structure is
0.2mm。
In certain embodiments of the present invention, single-layer medium base material thickness is 0.6mm.
In certain embodiments of the present invention, monolayer honeycomb is sandwich with a thickness of 2.5mm.
In certain embodiments of the present invention, single-layer metal micro-structure is with a thickness of 0.018mm.
In certain embodiments of the present invention, each metamaterial unit, which is set, haves three layers, and metal is pressed from both sides among two layers of media substrate
Micro-structure, cellular type core layer provide whole rigidity, overall thickness 0.6*8+0.018*4+2.5*3=12.372mm, multilayer knot
Structure can preferably protect micro-structure, it is avoided to corrode under extraneous mal-condition, it is ensured that the dielectric properties of antenna house.
In certain embodiments of the present invention, media substrate is epoxy resin base plate, relative dielectric constant 3.2, magnetic
Conductance is that 1.0 loss angle tangents are 0.008.
In certain embodiments of the present invention, cellular type core is aramid fiber paper honeycomb, relative dielectric constant 1.1, magnetic conductance
Rate is that 1.0 loss angle tangents are 0.004.
In certain embodiments of the present invention, metal micro structure is the copper sheet with a thickness of 0.018mm.
The beneficial effects of the present invention are: the present invention has different metamaterial microstructures, pass through related metal wire coating
Electromagnetic response feature changes the dielectric constant of each spatial point, makes electromagnetic response feature and the air at Meta Materials media filler
It is close.So this Meta Materials are also referred to as " solid air ".The introducing of Meta Materials reduces microwave system and passes due to introducing
Characteristic impedance mismatches caused decaying after system medium, to reduce reflection, improve efficiency of transmission.Higher mode is effectively contained
Interference, simplify and carry out the calculation amount of field analysis to it, so as to people more successfully, field distribution and smooth is precisely calculated
It is used.
Detailed description of the invention
Fig. 1 is the schematic diagram of man-made microstructure；
Fig. 2 is the structural schematic diagram that the metamaterial antenna cover formed is stacked by multiple substrates and man-made microstructure；
Fig. 3 is antenna house multilayered structure side view；
Fig. 4-Fig. 8 is the S parameter schematic diagram of metamaterial antenna cover；
Fig. 9 is 5*5 micro structure array form schematic diagram；
Figure 10 is 5*5 micro structure array structural perspective；
Figure 11 is the scale diagrams of man-made microstructure.
Specific embodiment
The invention will be further described with embodiment for explanation with reference to the accompanying drawing.
In Fig. 1-11, a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency selects antenna house, including at least one Meta Materials
Lamella and first substrate, the first substrate in metamaterial sheet can be divided into multiple metamaterial units；Each metamaterial sheet packet
Include media substrate, cellular type core, metal micro structure, press from both sides one layer of metal micro structure among two layers of media substrate, cellular type core layer with
Medium substrate layer connection, provides whole rigidity；The metal micro structure is field word structure in the collar extension of hollow out, and interior field word machine
The outline border corner location of structure does not connect.
In certain embodiments of the present invention, the length of each metamaterial unit and width are 5mm.
In certain embodiments of the present invention, field word structure includes collar extension word knot in the hollow out collar extension of metal micro structure
Structure, interior field word structure, collar extension word structure with a thickness of 0.1mm；Interior field word structure includes the cross of two square crossings, mouth word
Frame, the length of the cross are 2mm, and the side length of mouth edge frame is 1.4mm；The hem width degree of the interior field word structure is
0.2mm。
In certain embodiments of the present invention, single-layer medium base material thickness is 0.6mm.
In certain embodiments of the present invention, monolayer honeycomb is sandwich with a thickness of 2.5mm.
In certain embodiments of the present invention, single-layer metal micro-structure is with a thickness of 0.018mm.
In certain embodiments of the present invention, each metamaterial unit, which is set, haves three layers, and metal is pressed from both sides among two layers of media substrate
Micro-structure, cellular type core layer provide whole rigidity, overall thickness 0.6*8+0.018*4+2.5*3=12.372mm, multilayer knot
Structure can preferably protect micro-structure, it is avoided to corrode under extraneous mal-condition, it is ensured that the dielectric properties of antenna house.
In certain embodiments of the present invention, media substrate is epoxy resin base plate, relative dielectric constant 3.2, magnetic
Conductance is that 1.0 loss angle tangents are 0.008.
In certain embodiments of the present invention, cellular type core is aramid fiber paper honeycomb, relative dielectric constant 1.1, magnetic conductance
Rate is that 1.0 loss angle tangents are 0.004.
In certain embodiments of the present invention, metal micro structure is the copper sheet with a thickness of 0.018mm.
The S parameter that S1,1S2,1 transmission line circuit emulate in Fig. 3 as a result, S1,1 is return loss, and S2,1 is insertion loss,
It can be seen that wide-angle frequency selects wave transparent antenna house to need to have lower low insertion loss in required frequency range (12.25-14.5GHz)
Medium.
In Fig. 4, Fig. 8, from the above simulation curve and statistical data figure, it is apparent that be added metal micro structure after 0-
The S21 of 70 degree of angle incidences is more much smaller than the S21 of pure plate, illustrates micro- in the intelligent Meta Materials of Ku wave band 12.25-14.5GHz addition
The wave transparent performance of structure design improves very much, and especially under the condition of incidence of big angle, loss is relatively stable, is able to maintain higher
Wave rate, (1~10GHz) antenna house shows as good cutoff performance (i.e. S21 loss is very big) outside working frequency range, makes the frequency range
Antenna house be equivalent to metal material, cooperate the configuration design of antenna house, its radar scattering area can be effectively reduced, to reach
To stealthy effect.
And due to using multi-layer Matched structure, match air more preferably with intelligent metamaterial antenna cover, Neng Gou
12.25-14.5GHz wave band has good wave transmission rate, and 0~70 degree of incidence has huge 90% or more than simple dielectric material
It is big to be promoted；Antenna house is selected compared to general frequency, wave transmission rate is also obviously improved in the large angle incidences such as 50~70 degree.
By retrieval program calculate impedance in Ku wave band frequency range 12.25~14.5 match with air it is splendid,
Distribution coefficient η is averagely equal to 1, also very little is lost, so wave transmission rate can be only achieved very high standard.
The present invention is changed by designing different metamaterial microstructures by the electromagnetic response feature of related metal wire coating
The dielectric constant for becoming each spatial point keeps the electromagnetic response feature at Meta Materials media filler close with air.So we
This Meta Materials are also referred to as " solid air ".The introducing of Meta Materials reduces microwave system due to characteristic after introducing traditional sucrose
Decaying caused by impedance mismatch, to reduce reflection, improve efficiency of transmission.The interference of higher mode is effectively contained, has simplified
The calculation amount of field analysis is carried out to it, so as to people more successfully, field distribution is precisely calculated and is smoothly used.
In some applications, the minimum dielectric material of lossy microwave usually may require that.Such as radome, antenna house；Benefit
Separate the vacuum system of atmosphere and microwave tube with dielectric disk in window；Separate atmosphere and fills the inflation system of plasma microwave pipe
System；Separate atmosphere and high-pressure aerated Wave guide system；Separate atmosphere and water etc. using sealing medium piece in some water loads.It adopts
It can satisfy the demand under above-mentioned occasion with technical solution of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (3)
1. a kind of Ku wave band intelligence Meta Materials wide-angle wave transparent frequency selects antenna house, including at least one metamaterial sheet and the first base
Plate, settable multiple metamaterial units on first substrate；It is characterized by: each metamaterial sheet includes media substrate, honeycomb
Sandwich, metal micro structure, two layers of media substrate centre press from both sides one layer of metal micro structure, and cellular type core layer is connect with medium substrate layer,
Whole rigidity is provided；The metal micro structure be hollow out collar extension in field word structure, and interior field word structure outline border quadrangle position
It sets and does not connect；
Monolayer honeycomb is sandwich with a thickness of 2.5mm；
Cellular type core is aramid fiber paper honeycomb, and relative dielectric constant 1.1, magnetic conductivity is that 1.0 loss angle tangents are 0.004；
Each metamaterial unit, which is set, to have three layers, and metal micro structure is pressed from both sides among two layers of media substrate, and cellular type core layer provides the rigid of entirety
Degree；
The length and width of each metamaterial unit are 5mm；
Single-layer medium base material thickness is 0.6mm；
Single-layer metal micro-structure is with a thickness of 0.018mm；
Metal micro structure is the copper sheet with a thickness of 0.018mm；
Media substrate is epoxy resin base plate, and relative dielectric constant 3.2, magnetic conductivity is that 1.0 loss angle tangents are 0.008；
This antenna house uses multi-layer metamaterial lamellar structure, matches air with intelligent metamaterial antenna cover, realizes
0~70 degree of incidence of 12.25-14.5GHz wave band has 90% or more wave transmission rate；Outside working frequency range, antenna house shows as cutting
Only performance makes the antenna house of the frequency range be equivalent to metal material, cooperates the configuration design of antenna house, can reduce its radar scattering
Area, to achieve the effect that stealthy.
2. Ku wave band intelligence Meta Materials wide-angle wave transparent frequency according to claim 1 selects antenna house, which is characterized in that metal
Field word structure includes collar extension word structure, interior field word structure in the hollow out collar extension of micro-structure, collar extension word structure with a thickness of 0.1mm；
Interior field word structure includes the cross of two square crossings, mouth edge frame, and the length of the cross is 2mm, mouth edge frame
Side length is 1.4mm；The hem width degree of the interior field word structure is 0.2mm.
3. Ku wave band intelligence Meta Materials wide-angle wave transparent frequency according to claim 1 selects antenna house, which is characterized in that each
Metamaterial unit, which is set, to have three layers, and overall thickness 12.372mm, 3-tier architecture can preferably protect micro-structure, avoids corroding, it is ensured that day
The dielectric properties of irdome.
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| CN107293850B (en) * | 2016-03-31 | 2023-10-20 | 深圳光启高等理工研究院 | Metamaterial flat plate, preparation method thereof and metamaterial flat plate antenna |
| CN106684569A (en) * | 2016-08-29 | 2017-05-17 | 复旦大学 | Intrinsic electromagnetic metamaterial meta-surface capable of supporting TE (transverse electric) surface waves and TM (transverse magnetic) surface waves |
| CN107275792B (en) * | 2017-05-24 | 2020-03-27 | 浙江大学 | Full-angle transparent transmission material of terahertz frequency band |
| CN108361920A (en) * | 2018-03-27 | 2018-08-03 | 南京中高知识产权股份有限公司 | A kind of intelligent air purifying system |
| CN108847530B (en) * | 2018-06-22 | 2020-08-25 | 西安电子科技大学 | Triangular pyramid super-surface antenna housing with wave beam calibration function |
| CN112312690B (en) * | 2019-07-26 | 2022-03-08 | Oppo广东移动通信有限公司 | Shell assembly, antenna assembly and electronic equipment |
| CN111086301A (en) * | 2019-12-13 | 2020-05-01 | 浙江工业大学 | Superstructure honeycomb composite wave-absorbing material |
| CN116435793A (en) * | 2023-06-15 | 2023-07-14 | 华南理工大学 | Artificial dielectric material, lens unit, manufacturing method and lens antenna |
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| US7580604B2 (en) * | 2006-04-03 | 2009-08-25 | The United States Of America As Represented By The Secretary Of The Army | Zero index material omnireflectors and waveguides |
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