CN206742502U - A kind of double incident type electromagnetism Meta Materials - Google Patents
A kind of double incident type electromagnetism Meta Materials Download PDFInfo
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- CN206742502U CN206742502U CN201620699178.4U CN201620699178U CN206742502U CN 206742502 U CN206742502 U CN 206742502U CN 201620699178 U CN201620699178 U CN 201620699178U CN 206742502 U CN206742502 U CN 206742502U
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- medium substrate
- bonding jumper
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- 239000000463 material Substances 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
- 241000826860 Trapezium Species 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
LHM is the utility model is related to, more particularly to a kind of double incident type electromagnetism Meta Materials.Described electromagnetism metamaterial structure includes medium substrate and overlays on the bonding jumper on the medium substrate, two groups of metal wires are etched with described bonding jumper, each group of metal wire forms by two metal lines, two described metal line reverse symmetries are etched in the both sides of medium substrate, and in the metal wire of medium substrate the same side, two metal lines and bonding jumper composition geometric figure isosceles trapezoid shape structure.Its is simple in construction for described electromagnetism Meta Materials, and two-dimentional left hand characteristic can be achieved, overcome the complexity of traditional LHM and the limitation of incident direction.Change the dimensional parameters at bottom in isosceles trapezoid shape metal structure, two-dimentional left hand characteristic can be realized in different frequency domains, so as to meet the real requirement of various working bands.
Description
Technical field
LHM is the utility model is related to, particularly a kind of double incident type electromagnetism Meta Materials, a left side can be better achieved
The practical value of hand material.
Background technology
LHM (left-handed mentamaterials, LHMs) is the physicist Vector by the former Soviet Union
Veselago proposes a kind of existing in theory that permittivity ε and magnetic permeability μ are to bear not in a certain frequency range in nineteen sixty-eight
It is present in the special material of nature.Studied respectively in the physicist Pendry for the 30 Nian Hou Britain that this theoretical material proposes
The implementation of negative permittivity and negative permittivity, i.e. periodic arrangement conducting metal bar (ROD) and metal openings resonance
Ring (SRRs).The physicists such as the Smith in subsequent California, USA university San Diego branch schooles were in the suggestion in Pendry in 2001
Under be manufactured that the metallic rod that left hand characteristic is realized in microwave band and the combining structure of split ring resonator first, utilize metal
The plasma effect of bar realizes negative permittivity, and negative magnetic conductance is realized using the magnetic resonance effect of metal openings resonant ring
Rate.2002, the Itoh professors in the U.S. and Canadian professor Eleftheriades put forward one kind and have been based on periodicity LC nets
Metal itself plasma effect and magnetic resonance effect, i.e., be integrated in one by the new material design method for realizing left hand characteristic of network
Electromagnetism integrative-structure.The theoretical foundation of Left-handed Material Design has been established in the proposition of ring rod structure and electromagnetism integrative-structure, and
The peculiar electromagnetic characteristic of subsequent research surface LHM is in perfect imaging, electromagnetism stealth, Electromagnetic Heating and antenna radar
The field such as microband paste have very wide application prospect, so far triggered the research overbearing tide of one LHM.
The research of subsequent LHM substantially can be divided into two classes by the incident direction of electromagnetic wave, i.e., electromagnetic wave is parallel to medium
Plate incidence realizes left hand characteristic and realizes the class of left hand characteristic two perpendicular to dielectric-slab incidence.Parallel incident typical structure has double S
Type, symmetrical annular, H type structures etc..Vertical incidence realizes that the typical structure of left hand characteristic has dendritic structure, fishing net structure
Deng.This two classes LHM can only could realize left hand characteristic when electromagnetic wave is from specific a direction incidence, be answered with actual
The requirement for the multi-direction more dimensions asked needed for is not inconsistent.In recent years in the case where scholars are continually striving to, double Z shaped structure, double Σ types
The it is proposed of structure and double triangle bonding jumper structure, realize in electromagnetic wave vertical incidence and parallel incident two kinds of condition of incidence
It is lower to realize left hand characteristic simultaneously, major step is stepped in the multidimensional research field of LHM, also only more dimensions are multi-party
To LHM can just better meet using needs.
Utility model content
The purpose of this utility model is the limitation of the complexity and incident direction that overcome traditional LHM, there is provided a kind of
Double incident type electromagnetism Meta Materials.The structure is prepared simply, and size is smaller, can not only overcome one-dimensional LHM practical application
Limitation, and by changing the dimensional parameters of structure structure can be enable to realize that double incident left hands are special in different frequency domains
Property, it is applicable to the application of various different operating frequency band occasions.
Design of the present utility model is：A kind of double incident type electromagnetism Meta Materials, described electromagnetism metamaterial structure bag
Include medium substrate and cover the bonding jumper being engraved on the medium substrate, it is characterised in that two groups of gold are etched with described bonding jumper
Belonging to line, two described metal line reverse symmetries are etched in the both sides of medium substrate, and positioned at the metal of medium substrate the same side
Line and bonding jumper composition geometric figure isosceles trapezoid shape structure.
Described medium substrate is the aluminium oxide ceramics that dielectric constant is 9.8, and the bonding jumper, which is taken, covers copper technology etching
In medium substrate both sides, it is 0.01mm to cover copper thickness.
Described electromagnetism metamaterial structure includes two groups of cross one another metal wires, positioned at described medium substrate the same side
Two metal lines and bonding jumper are into geometric figure isosceles trapezoid shape structure.
The trapezium structure water table opening is respectively set to 0.1mm, 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm,
3.0mm, the frequency range that different scale left hand characteristic is realized are different.
Described strip width is a=6mm, and described bonding jumper is highly L=10mm, is used on described bonding jumper
The span access location length for etching metal wire is h=4mm, and described metal line-width is t=0.5mm.
The thickness of the medium substrate is d=0.3mm.
The beneficial effect that the utility model is reached：
1. the utility model is simple in construction, easy to make, structural complexity and the incidence side of traditional LHM are overcome
To unicity, and cost of manufacture is more cheap.
2. the utility model employs alumina ceramic material as medium substrate, it is compared with general polymeric substrate
With higher hardness and heat-resisting quantity, it can make structure that there is stronger environmental suitability and stability.
3. electromagnetism Meta Materials of the present utility model can be in the case of parallel incident and two kinds of the vertical incidence of electromagnetic wave, in fact
Existing negative permittivity and negative magnetoconductivity, have widened the incident angle of electromagnetic wave, can meet the integration requirement in practical application, had
There are double incident left hand characteristics, overcome the limitation of one-dimensional LHM practical application.
4. electromagnetism Meta Materials of the present utility model are by changing the dimensional parameters size at bottom in isosceles trapezoid shape metal structure,
Double incident left hand characteristics can be realized in different frequency domains, disclosure satisfy that the real requirement of various working bands.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model embodiment 1；
Fig. 2 is S parameter amplitude (dB) figure of the electromagnetic wave vertical incidence of the utility model embodiment 1；
Fig. 3 is the effective electromagnetic parameter figure of the electromagnetic wave vertical incidence of the utility model embodiment 1；
Fig. 4 is S parameter amplitude (dB) figure of the electromagnetic wave glancing incidence of the utility model embodiment 1；
Fig. 5 is the effective electromagnetic parameter figure of the electromagnetic wave glancing incidence of the utility model embodiment 1；
Fig. 6 is the equivalent permeability curve map when s of the electromagnetic wave vertical incidence of the utility model embodiment 2 takes each value；
Fig. 7 is the effective dielectric constant curve map when s of the electromagnetic wave vertical incidence of the utility model embodiment 2 takes each value；
Fig. 8 is the equivalent permeability curve map when s of the electromagnetic wave glancing incidence of the utility model embodiment 2 takes each value；
Fig. 9 is the effective dielectric constant curve map when s of the electromagnetic wave glancing incidence of the utility model embodiment 2 takes each value；
Embodiment
Double incident type electromagnetism Meta Materials of the present utility model are by medium substrate and cover the metal being engraved on the medium substrate
Bar forms, and is etched with two groups of metal wires on described bonding jumper, each group of metal wire is made up of two metal lines, described two
Metal wire reverse symmetry is etched in the both sides of medium substrate, and the metal wire positioned at medium substrate the same side and bonding jumper composition are several
What figure isosceles trapezoid shape structure.
The utility model, can be real in different frequency domains by changing isosceles trapezoid shape metal structure water table opening parameter
Existing left hand characteristic, and meet certain value evaluation between the characteristic frequency domain of each structure.
Specific embodiment of the utility model is described in detail below：
Embodiment 1：
Such as Fig. 1, the electromagnetism metamaterial structure of the present embodiment includes medium substrate and overlays on the metal on the medium substrate
Bar, is etched with two groups of metal wires on described bonding jumper, and two metal lines in each group of metal wire, which are taken, covers copper technology, reversely
Symmetrically etch in the both sides of medium substrate.The copper thickness that covers of the present embodiment is 0.01mm, strip width a=6mm, height L=
10mm, is used for the span access location length h=4mm for etching metal wire on bonding jumper, metal line-width t=0.5mm, bottom width on trapezium structure
Spend s=0.1mm.Medium substrate uses dielectric constant as 9.8 aluminium oxide ceramics, dielectric substrate thickness d=0.3mm.
Hung down perpendicular and parallel two incident directions difference analytical structure unit according to electromagnetic wave, first analyze vertical incidence medium base
The situation of plate, if Fig. 2 is the amplitude curve of the structure S parameter, if Fig. 3 is effective electromagnetic parameter figure, the structure is in 7.99-
ε and μ real parts are simultaneously negative in 8.09GHz frequency bands, left hand passband occur.When electromagnetic wave is parallel incident, if Fig. 4 is the structure
The amplitude curve of S parameter, effective electromagnetic parameter is as shown in Fig. 5, and the structure is in 8.88-9.1GHz frequency ranges and 11.68-
ε and μ real parts are simultaneously negative in 11.98GHz frequency ranges, that is, left hand passband occur.
Under the conditions of two kinds of incidence, the isosceles trapezoid metal structure of former and later two reverse symmetries of dielectric-slab is in electromagnetic wave magnetic field
Coupled resonance loop can be produced in the presence of component, so as to realize negative magnetoconductivity, but magnetic resonance couples under the conditions of two kinds
Principle is different.In the case that electromagnetic wave vertically injects medium substrate, the isosceles trapezoid bonding jumper of medium substrate both sides is in electromagnetic field
Intercoupled under effect, form magnetic resonance so as to produce negative magnetoconductivity；In the case of the parallel injection medium substrate of electromagnetic wave, medium
The isosceles trapezoid bonding jumper of substrate both sides forms circular current loops because phase-inversion symmetric is placed under electromagnetic field effect, from
And magnetic resonance is generated, realize negative magnetoconductivity.Negative permittivity in the case of two kinds be all by isosceles trapezoid bonding jumper in itself
Plasma effect caused by, it is achieved thereby that double incident DNG features.
Embodiment 2：
The present embodiment changes isosceles trapezoid on the basis of the structure of embodiment 1 when etching metal wire on the bonding jumper
The dimensional parameters at upper bottom, s=0.5mm, s=1.0mm, s=1.5mm, s=2mm, s=2.5mm, s=3mm are taken respectively.Fig. 6 institutes
Equivalent permeability curve map when s in the case of electromagnetic wave vertical incidence takes above-mentioned each value is shown as, Fig. 7 is effective dielectric constant curve
Figure.According to s values difference respectively in 7.87-7.94GHz, 7.84-7.9GHz, 7.99-8.04GHz, 8.11-8.15GHz,
ε and μ real parts are simultaneously negative in 8.32-8.35GHz, 8.53-8.56GHz frequency band, realize left hand characteristic；Fig. 8 show electromagnetic wave
Equivalent permeability curcve figure under each value condition when parallel incident, Fig. 9 are effective dielectric constant curve, it can be seen that structure is distinguished
In 8.47-8.64GHz, 11.81-12.08GHz；8.85-9GHz 12.18-12.47GHz；8.76-8.87GHz 12.48-
12.78GHz；8.62-8.71GHz 12.81-13.05GHz；ε and μ is real in 8.65-8.68GHz, 13.21-13.43GHz frequency domain
Portion is simultaneously negative, realizes left hand characteristic, and in s=3mm, no left hand characteristic is realized.Due to structure when electromagnetic wave is parallel incident
Two return circuits are formd, to produce two DNG feature frequency ranges of height.
The effective electromagnetic parameter curve of structure is understood under s values different situations in comparative example 2, electromagnetic wave vertical incidence
When s values often increase the DNG features of 0.5mm structures and realize frequency range to high-frequency mobile about 0.2GHz, s values when electromagnetic wave is parallel incident
The higher DNG feature for often increasing 0.5mm structures realizes frequency range to high-frequency mobile about 0.4GHz, and relatively low DNG feature is real
Existing frequency range is held essentially constant.
Double incident type electromagnetism Meta Materials of the present utility model, in the case of parallel incident and two kinds of the vertical incidence of electromagnetic wave,
Negative permittivity and negative magnetoconductivity can be realized simultaneously.Can be by changing isosceles trapezoid shape metal structure based on the foundation structure
The size at upper bottom, double incident left hand characteristics can be realized in different frequency ranges, the practical need of various working frequency range can be met
Ask.
Claims (5)
1. a kind of double incident type electromagnetism Meta Materials, described electromagnetism metamaterial structure includes medium substrate and covered to be engraved in the medium
Bonding jumper on substrate, it is characterised in that two groups of metal wires are etched with described bonding jumper, every group of metal wire is by two metals
Line forms, and described two groups of metal wire reverse symmetry etchings are located at the gold of medium substrate the same side in the both sides of medium substrate
Belong to line and bonding jumper composition geometric figure isosceles trapezoid shape structure.
2. double incident type electromagnetism Meta Materials according to claim 1, it is characterised in that described medium substrate is that dielectric is normal
Number is 9.8 aluminium oxide ceramics, and the metal wire, which is taken, covers copper technology etching in medium substrate both sides, and covering copper thickness is
0.01mm。
3. double incident type electromagnetism Meta Materials according to claim 1, it is characterised in that described isosceles trapezoidal structure it is upper
Bottom width degree realizes that frequency range difference is respectively set to 0.1mm, 0.5mm, 1.0mm, 1.5mm, 2mm, 2.5mm according to left hand characteristic,
3mm。
4. double incident type electromagnetism Meta Materials according to claim 1, it is characterised in that described strip width is 6m, institute
The bonding jumper stated highly is 10mm, and the span access location length for being used to etching metal wire on described bonding jumper is 4mm, described metal wire
Width is 0.5mm.
5. double incident type electromagnetism Meta Materials according to claim 1, it is characterised in that the thickness of the medium substrate is
0.3m。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620699178.4U CN206742502U (en) | 2016-07-05 | 2016-07-05 | A kind of double incident type electromagnetism Meta Materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620699178.4U CN206742502U (en) | 2016-07-05 | 2016-07-05 | A kind of double incident type electromagnetism Meta Materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958209A (en) * | 2016-07-05 | 2016-09-21 | 中国矿业大学(北京) | Double-incident type electromagnetic metamaterial structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958209A (en) * | 2016-07-05 | 2016-09-21 | 中国矿业大学(北京) | Double-incident type electromagnetic metamaterial structure |
| CN105958209B (en) * | 2016-07-05 | 2022-09-02 | 中国矿业大学(北京) | Double-incidence left-handed material structure |
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Granted publication date: 20171212 Termination date: 20180705 |