CN204257824U - A kind of two-dimensional left-handed material structure derived - Google Patents
A kind of two-dimensional left-handed material structure derived Download PDFInfo
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- CN204257824U CN204257824U CN201420688504.2U CN201420688504U CN204257824U CN 204257824 U CN204257824 U CN 204257824U CN 201420688504 U CN201420688504 U CN 201420688504U CN 204257824 U CN204257824 U CN 204257824U
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- 239000000463 material Substances 0.000 title claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 63
- 239000002184 metal Substances 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 42
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 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
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model relates to left-handed materials, and particularly one can derive two-dimensional left-handed material structure.Described left-handed materials structure comprises medium substrate and overlays on the bonding jumper on described medium substrate, described bonding jumper is etched with the cross one another metal wire of at least two groups, each is organized cross one another metal wire and forms by two metal line, two described metal line reverse symmetry are etched in the both sides of medium substrate, and be arranged in the metal wire of medium substrate the same side, every two adjacent wires composition " V " character form structure.Its structure of described left-handed materials is simple, can realize two-dimentional left hand characteristic, overcome the complexity of traditional left-handed materials and the limitation of incident direction.By increasing the number introducing crossed metal wires in the middle of structure, the design of a series of structural similarity can be derived, two-dimentional left hand characteristic can be realized in different frequency domains, thus meet the real requirement of various working band.
Description
Technical field
The utility model relates to left-handed materials, particularly a kind of two-dimensional left-handed material derived, and can realize the practical value of left-handed materials better.
Background technology
Left-handed materials (left-handed materials, LHM) is a kind of DIELECTRIC CONSTANT ε and magnetic permeability μ is negative material simultaneously, is proposed theoretically in nineteen sixty-eight by the Veselago of the former Soviet Union the earliest.Until calendar year 2001, Smith proposes the combining structure of conductive metal wire (ROD) and split ring resonator (SRRs), and manually achieve ε and μ is first negative left-handed materials simultaneously, has from then on established the Research foundation of left-handed materials.Due to the unusual electromagnetic property that left-handed materials has, become the focus of physics circle research, it is at optical imagery, microstrip transmission line, antenna radar, and the field such as electromagnetism stealth and Electromagnetic Heating all has broad application prospects.The people such as Eleftherios in 2006 propose two parallel short metal wire and SRRs can be replaced to realize magnetic resonance on the basis of Smith achievement.
Along with the fast development of left-handed materials, there is increasing design form, substantially can be divided into two types, a kind of is various " ring rod " structure prepared according to the principle of Smith, and another kind is the electromagnetic resonance integral structure gone out according to the principle design of Eleftherios.But these structures all can only realize left hand characteristic when electromagnetic wave is incident in a singular fashion, as symmetrical ring structure, two S type structure, H type structure etc. can only realize DNG feature when electromagnetic wave is parallel to medium substrate incidence; Metal wire is to structure, and duplex structure etc. can only realize two negative when electromagnetic wave is incident perpendicular to medium substrate.Two above-mentioned kinds of structures achieve DNG feature from two different directions respectively, both direction can not be met and realize DNG feature simultaneously, there is significant limitation in actual applications, multidimensional number and multidirectional left-handed materials just can better meet the demand of practical application.
Utility model content
The purpose of this utility model overcomes the complexity of traditional left-handed materials and the limitation of incident direction, provides a kind of two-dimensional left-handed material derived.The preparation of this structure is simple, and size is less, not only can realize two-dimentional left hand characteristic, overcomes the limitation of one dimension left-handed materials practical application, but also has the advantages that to derive.By increasing the number introducing crossed metal wires in the middle of structure, a series of type structure can be derived, two-dimentional left hand characteristic can be realized in different frequency domains, being applicable to the application of various different operating frequency band occasion.
Design of the present utility model is: a kind of two-dimensional left-handed material structure derived, described left-handed materials structure comprises medium substrate and overlays on the bonding jumper on described medium substrate, it is characterized in that described bonding jumper being etched with the cross one another metal wire of at least two groups, each is organized cross one another metal wire and forms by two metal line, two described metal line reverse symmetry are etched in the both sides of medium substrate, and be arranged in the metal wire of medium substrate the same side, every two adjacent wires composition " V " character form structure.
Described medium substrate to be dielectric constant be 9.8 aluminium oxide ceramics, described bonding jumper is taked to cover copper technology and is etched in medium substrate both sides, and covering copper thickness is 0.01mm.
Described left-handed materials structure comprises two groups of cross one another metal wires, and two metal line being positioned at described medium substrate the same side become " V " character form structure.
Described left-handed materials structure comprises three groups of cross one another metal wires, and three metal line being positioned at described medium substrate the same side become " N " character form structure.
Described left-handed materials structure comprises four groups of cross one another metal wires, and four metal line being positioned at described medium substrate the same side become " W " character form structure.
Described strip width is w=6mm ± 2mm, and described bonding jumper height is h=10mm ± 2mm, and described bonding jumper is s=4mm ± 1mm for the span access location length of etching metal line, and described metal line-width is t=1mm ± 0.2mm.
The thickness of described medium substrate is d=0.3mm.
The beneficial effect that the utility model reaches:
1. the utility model structure is simple, easy to make, overcomes the complexity of traditional left-handed materials, provides cost savings, and is easy to processing, saves manpower.
2. the utility model have employed aluminium oxide ceramics medium substrate, and it has higher intensity and resistance to elevated temperatures than general polymeric substrate, and can adapt to various environment, structure is more stable.
3. left-handed materials of the present utility model can under the parallel incidence of electromagnetic wave and vertical incidence two kinds of situations, realize negative permittivity and negative magnetoconductivity simultaneously, widen electromagnetic incident angle, the integration requirement in practical application can be met, there is two-dimentional left hand characteristic, overcome the limitation of one dimension left-handed materials practical application.
4. left-handed materials of the present utility model is by increasing the number introducing crossed metal wires in the middle of structure, the design of a series of structural similarity can be derived, possess and can derive characteristic, two-dimentional left hand characteristic can be realized in different frequency domains, the real requirement of various working band can be met.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model embodiment 1;
Fig. 2 is S parameter amplitude (dB) figure of the utility model embodiment 1 electromagnetic wave vertical incidence;
Fig. 3 is the effective electromagnetic parameter figure of the utility model embodiment 1 electromagnetic wave vertical incidence;
Fig. 4 is S parameter amplitude (dB) figure of the utility model embodiment 1 electromagnetic wave glancing incidence;
Fig. 5 is the effective electromagnetic parameter figure of the utility model embodiment 1 electromagnetic wave glancing incidence;
Fig. 6 is the structure chart of the utility model embodiment 2;
Fig. 7 is S parameter amplitude (dB) figure of the utility model embodiment 2 electromagnetic wave vertical incidence;
Fig. 8 is the effective electromagnetic parameter figure of the utility model embodiment 2 electromagnetic wave vertical incidence;
Fig. 9 is S parameter amplitude (dB) figure of the utility model embodiment 2 electromagnetic wave glancing incidence;
Figure 10 is the effective electromagnetic parameter figure of the utility model embodiment 2 electromagnetic wave glancing incidence;
Figure 11 is the structure chart of the utility model embodiment 3;
Figure 12 is S parameter amplitude (dB) figure of the utility model embodiment 3 electromagnetic wave vertical incidence;
Figure 13 is the effective electromagnetic parameter figure of the utility model embodiment 3 electromagnetic wave vertical incidence;
Figure 14 is S parameter amplitude (dB) figure of the utility model embodiment 3 electromagnetic wave glancing incidence;
Figure 15 is the effective electromagnetic parameter figure of the utility model embodiment 3 electromagnetic wave glancing incidence.
Embodiment
The two-dimensional left-handed material structure derived of the present utility model comprises medium substrate and overlays on the bonding jumper on described medium substrate, described bonding jumper is etched with the cross one another metal wire of at least two groups, each is organized cross one another metal wire and forms by two metal line, two described metal line reverse symmetry are etched in the both sides of medium substrate, and be arranged in the metal wire of medium substrate the same side, every two adjacent wires composition " V " character form structure.
The utility model can derive the design of a series of structural similarity by the number increasing crossed metal wires, can realize left hand characteristic, and meet certain value evaluation between the characteristic frequency domain of each structure in different frequency domains.
Introduce specific embodiment of the utility model in detail below:
Embodiment 1:
As Fig. 1, the left-handed materials structure of the present embodiment comprises medium substrate and overlays on the bonding jumper on described medium substrate, described bonding jumper etches two groups of cross one another metal wires, each two metal line organized in cross one another metal wire is taked to cover copper technology, and reverse symmetry is etched in the both sides of medium substrate.The copper thickness that covers of the present embodiment is 0.01mm, strip width w=6mm ± 2mm, and height h=10mm ± 2mm, for etching the span access location length s=4mm ± 1mm of metal wire, metal line-width t=1mm ± 0.2mm on bonding jumper.Medium substrate adopts dielectric constant to be the aluminium oxide ceramics of 9.8, and dielectric substrate thickness is d=0.3mm.
According to electromagnetic wave vertically with parallel incident both direction analytical structure unit, first analyze the situation of vertical incidence medium substrate, as the amplitude curve that Fig. 2 is this structure S parameter, if Fig. 3 is effective electromagnetic parameter figure, this structure ε and μ real part in 7.83-8.17GHz frequency band is negative simultaneously, occurs left hand passband.When the parallel incidence of electromagnetic wave, be the amplitude curve of the S parameter of this structure as Fig. 4, as shown in Figure 5, this structure ε and μ real part in 8.25-8.46GHz frequency band is negative to effective electromagnetic parameter simultaneously, occurs left hand passband.
Under two kinds of incident conditions, the triangle metal structure of former and later two reverse symmetry of dielectric-slab can be coupled generation magnetic resonance under the effect of electromagnetic wave magnetic-field component, thus realizes negative magnetoconductivity, but under two kinds of conditions, magnetic resonance coupling principle is different.When electromagnetic wave vertically injects medium substrate, the triangle metal bar of medium substrate both sides intercouples, and forms magnetic resonance thus produces negative magnetoconductivity; When electromagnetic wave is parallel inject medium substrate when, the triangle metal bar of medium substrate both sides is placed due to phase-inversion symmetric, can form loop circuit, thus create magnetic resonance, realize negative magnetoconductivity.Negative permittivity in two kinds of situations is all produced by the plasma effect of triangle metal bar itself, thus realizes two-dimentional DNG feature.
Embodiment 2:
As Fig. 6, the present embodiment, on the basis of embodiment 1 structure, described bonding jumper etches three groups of cross one another metal wires, obtains a kind of novel derived structure.Figure 7 shows that the S parameter curve chart of this structure in electromagnetic wave vertical incidence situation, Fig. 8 is effective electromagnetic parameter curve chart, and this structure ε and μ real part in 8.36-8.68GHz frequency band is negative simultaneously, realizes left hand characteristic; Figure 9 shows that the S parameter curve chart of this structure in electromagnetic wave glancing incidence situation, Figure 10 is effective electromagnetic parameter curve chart, can find out that ε and μ real part is negative simultaneously in the frequency domain of 12.3-12.5GHz, realizes left hand characteristic.
Embodiment 3:
As Figure 11, the present embodiment, on the basis of embodiment 1 structure, described bonding jumper etches four groups of cross one another metal wires, thus obtains another derived structure.Figure 12 shows that the S parameter curve chart of this structure in electromagnetic wave vertical incidence situation, Figure 13 is effective electromagnetic parameter curve chart, and this structure ε and μ real part in 8.98-9.13GHz frequency band is negative simultaneously, realizes left hand characteristic; Figure 14 shows that the S parameter curve chart of this structure in electromagnetic wave glancing incidence situation, Figure 15 is effective electromagnetic parameter curve chart, can find out that ε and μ real part is negative simultaneously in the frequency domain of 16.62-16.79GHz, realizes left hand characteristic.
The effective electromagnetic parameter of three kinds of structures in above three embodiments of contrast is known, and under the condition of electromagnetic wave vertical incidence, three kinds of structures occur that the frequency domain of left hand characteristic is respectively: two metal line (7.83-8.17GHz); Three metal line (8.36-8.68GHz); Four metal line (8.98-9.13GHz).Comparative analysis can summarize the general characteristic of the type structure: during electromagnetic wave vertical incidence, along with the increase of the metal wire number introduced in the middle of structure, the resonance frequency linearly growth trend of structure, often increase by a wires, resonance frequency moves about 0.5GHz to high frequency direction.Under the parallel incident condition of electromagnetic wave, three kinds of structures occur that the frequency domain of left hand characteristic is respectively: two metal line (8.25-8.46GHz); Three metal line (12.3-12.5GHz); Four metal line (16.62-16.79GHz).Can summarize equally: electromagnetic wave parallel incident time, resonance frequency is also that often increase by a wires, resonance frequency moves about 4GHz to high frequency direction along with the increase of introducing metal wire number in the middle of structure linearly growth trend.
Two-dimensional left-handed material structure of the present utility model, under the parallel incidence of electromagnetic wave and vertical incidence two kinds of situations, can realize negative permittivity and negative magnetoconductivity simultaneously.The design of a series of structural similarity can be derived based on this structure, two-dimentional left hand characteristic can be realized in different frequency domains, the functional need of various work frequency domain can be met.
Claims (7)
1. the two-dimensional left-handed material structure that can derive, described left-handed materials structure comprises medium substrate and overlays on the bonding jumper on described medium substrate, it is characterized in that described bonding jumper being etched with the cross one another metal wire of at least two groups, each is organized cross one another metal wire and forms by two metal line, two described metal line reverse symmetry are etched in the both sides of medium substrate, and be arranged in the metal wire of medium substrate the same side, every two adjacent wires composition " V " character form structure.
2. the two-dimensional left-handed material structure derived according to claim 1, it is characterized in that described medium substrate to be dielectric constant be the aluminium oxide ceramics of 9.8, described metal wire is taked to cover copper technology and is etched in medium substrate both sides, and covering copper thickness is 0.01mm.
3. the two-dimensional left-handed material structure derived according to claim 1, is characterized in that described left-handed materials structure comprises two groups of cross one another metal wires, and two metal line being positioned at described medium substrate the same side become " V " character form structure.
4. the two-dimensional left-handed material structure derived according to claim 1, is characterized in that described left-handed materials structure comprises three groups of cross one another metal wires, and three metal line being positioned at described medium substrate the same side become " N " character form structure.
5. the two-dimensional left-handed material structure derived according to claim 1, is characterized in that described left-handed materials structure comprises four groups of cross one another metal wires, and four metal line being positioned at described medium substrate the same side become " W " character form structure.
6. the two-dimensional left-handed material structure derived according to claim 1, it is characterized in that described strip width is 6mm ± 2mm, described bonding jumper height is 10mm ± 2mm, described bonding jumper is 4mm ± 1mm for the span access location length of etching metal line, and described metal line-width is 1mm ± 0.2mm.
7. the two-dimensional left-handed material structure derived according to claim 1, is characterized in that the thickness of described medium substrate is 0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420688504.2U CN204257824U (en) | 2014-11-17 | 2014-11-17 | A kind of two-dimensional left-handed material structure derived |
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| CN201420688504.2U CN204257824U (en) | 2014-11-17 | 2014-11-17 | A kind of two-dimensional left-handed material structure derived |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896094A (en) * | 2014-11-17 | 2016-08-24 | 中国矿业大学(北京) | Derived two-dimensional left-handed material structure |
| 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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2014
- 2014-11-17 CN CN201420688504.2U patent/CN204257824U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896094A (en) * | 2014-11-17 | 2016-08-24 | 中国矿业大学(北京) | Derived two-dimensional left-handed material structure |
| CN105896094B (en) * | 2014-11-17 | 2019-02-19 | 中国矿业大学(北京) | One kind can derivative two-dimensional left-handed material structure |
| 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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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |