CN102956978B - A kind of Meta Materials of high magnetic permeability - Google Patents
A kind of Meta Materials of high magnetic permeability Download PDFInfo
- Publication number
- CN102956978B CN102956978B CN201110239978.XA CN201110239978A CN102956978B CN 102956978 B CN102956978 B CN 102956978B CN 201110239978 A CN201110239978 A CN 201110239978A CN 102956978 B CN102956978 B CN 102956978B
- Authority
- CN
- China
- Prior art keywords
- magnetic permeability
- meta materials
- man
- high magnetic
- made microstructure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of Meta Materials of high magnetic permeability, this material comprises at least one sheet of material, each sheet of material comprises two pieces of substrates and is clipped in the man-made microstructure in the middle of described two pieces of substrates, described two pieces of substrates are divided into the base board unit pair of multiple array arrangement virtually, each base board unit adheres to a man-made microstructure to centre, get wherein one piece of substrate of two pieces of substrates, the face relative with man-made microstructure plates metal level, due to the structural design that this material is special, this kind of material is made to have higher magnetic permeability, the field higher to magnetic permeability requirement can be applied in.
Description
Technical field
The present invention relates to a kind of artificial electromagnetic material, more particularly, relate to a kind of Meta Materials of high magnetic permeability.
Background technology
Meta Materials is a kind of novel artificial synthetic material that can produce response to electromagnetic wave, is made up of substrate and the man-made microstructure be attached on substrate.The plane with certain geometrical pattern that man-made microstructure is made up of metal wire or stereochemical structure, such as, form annular, I-shaped metal wire etc.By the change to the ordered arrangement of man-made microstructure and size, shape, relative dielectric constant and the magnetic permeability of can be changed in Meta Materials space often, thus can effectively control electromagnetic wave propagation characteristic.
Magnetic permeability is the physical quantity characterizing magnetizing mediums magnetic, and conventional sign μ represents, μ equals the ratio of magnetic induction density B and magnetic field intensity H in magnetizing mediums.The magnetic permeability of natural material is generally 1.In some applications, the material with larger magnetic permeability may be required, and existing material does not reach this requirement.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect that can not provide high-permeability material of the prior art, designs new man-made microstructure thus realizes a kind of Meta Materials of high magnetic permeability.
The technical solution adopted for the present invention to solve the technical problems is: this material comprises at least one sheet of material, each sheet of material comprises two pieces of substrates and is clipped in the man-made microstructure in the middle of described two pieces of substrates, described two pieces of substrates are divided into the base board unit pair of multiple array arrangement virtually, each base board unit is attached with a man-made microstructure to centre, and outer surface upper part or the entirety of wherein one piece of substrate of described two pieces of substrates are coated with metal level.
In a preferred embodiment of the invention, described man-made microstructure comprises four branch roads of common intersection point, one end of arbitrary described branch road is connected with described intersection point, the other end is free end, described branch road comprises at least one kink, arbitrary described branch road with described intersection point for pivot successively dextrorotation turn 90 degrees, overlaps with other three branch roads respectively after 180 degree and 270 degree.
In a preferred embodiment of the invention, the kink of described man-made microstructure is right angle, fillet or wedge angle.
In a preferred embodiment of the invention, the free end of the arbitrary described branch road of described man-made microstructure is connected with a line segment.
In a preferred embodiment of the invention, the free end of described man-made microstructure branch road is connected with the mid point of described line segment.
In a preferred embodiment of the invention, the material of described metal level is copper or silver.
In a preferred embodiment of the invention, described man-made microstructure is made up of copper cash or silver-colored line.
In a preferred embodiment of the invention, described substrate is ceramic material.
In a preferred embodiment of the invention, described substrate is polytetrafluoroethylene.
In a preferred embodiment of the invention, described substrate is ferroelectric material, ferrite material, ferromagnetic material or FR-4.
Implement the Meta Materials of high magnetic permeability of the present invention, there is following beneficial effect: the present invention can provide the Meta Materials of higher magnetic permcability, occasion magnetic permeability being had to particular/special requirement can be applied in.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the man-made microstructure of the Meta Materials of high magnetic permeability of the present invention;
Fig. 2, Fig. 3 and Fig. 4 are the structural representation of the Meta Materials of high magnetic permeability of the present invention;
Fig. 5 is the structural representation of existing a kind of Meta Materials;
Fig. 6 is the permeability characteristics of Meta Materials shown in Fig. 5;
Fig. 7 is the permeability characteristics of the Meta Materials shown in Fig. 2, Fig. 3 and Fig. 4 of the present invention;
Fig. 8 to Figure 12 is several structures that man-made microstructure of the present invention is possible.
Embodiment
The present embodiment provides a kind of Meta Materials of high magnetic permeability, this material comprises at least one sheet of material, as Fig. 2, shown in Fig. 3, each sheet of material comprises two pieces of substrates and is clipped in the man-made microstructure 3 in the middle of described two blocks of base materials, the selected material as substrate comprises ceramic material, polytetrafluoroethylene, ferrite material, ferromagnetic material, FR-4, preferably choose ceramic material, described two pieces of substrates are divided into the base board unit pair of multiple array arrangement virtually, each base board unit is attached with a man-made microstructure to centre, the outer surface of the wherein one piece of substrate in addition in substrate 1 and substrate 2 is coated with metal level, when select on substrate 1 metal cladding time, as shown in Figure 3, institute's metal cladding 4 is at the upper surface of substrate 1, when select on a substrate 2 metal cladding time, as shown in Figure 4, namely metal level 4 is at the lower surface of substrate 2, that is to say with plating in the opposite of man-made microstructure.The material of metal level is here generally copper or silver, thickness between 0.005 ~ 0.05mm, preferred 0.018mm.
Man-made microstructure as shown in Figure 1, comprise four branch roads of common intersection point, one end of arbitrary branch road is connected with described intersection point, the other end is free end, arbitrary branch road is with described intersection point for pivot successively dextrorotation turn 90 degrees, overlaps with other three branch roads respectively after 180 degree and 270 degree, and the simplest situation i.e. " ten " font man-made microstructure.
Preferably, in the present embodiment, each branch road is provided with kink, be 6 kinks in figure, kink is right angle, and the free end of each branch road also can connect a line segment, and preferred free end is connected with the mid point of line segment.
The Meta Materials with above-mentioned man-made microstructure is emulated, simulation parameter comprises: each several part size of man-made microstructure as shown in Figure 1, d1=1.6 millimeter, d2=0.7 millimeter, d3=1 millimeter, d4=0.4 millimeter, e1=e2=e3=0.1 millimeter, e4=0.2 millimeter, man-made microstructure selects copper cash, and thickness is 0.018mm; Substrate is FR-4 material, and thickness is 0.04mm, and man-made microstructure becomes array arrangement with the line space of line space 2.2mm with the column pitch of 2.2mm on substrate, and between the two substrates of each metamaterial sheet, spacing is 0.018mm.
Under such simulated conditions, the permeability characteristics obtained as shown in Figure 7, as can be seen from permeability characteristics figure, except the region except the frequency band of about 1.6 ~ 2.2GHz near resonance frequency, along with the change of frequency, the magnetic permeability basic controlling of Meta Materials provided by the invention is about 6, obviously be greater than the magnetic permeability (being generally 1) of conventional nature material, moreover, compared with more existing Meta Materials, Meta Materials of the present invention also has certain advantage.
Existing Meta Materials adopts the Meta Materials of monobasal structure composition as shown in Figure 5, Fig. 6 is the permeability characteristics of Meta Materials shown in Fig. 5, as seen from Figure 6, according to the Meta Materials of existing design, except the region except the frequency band of about 13.8 ~ 17GHz near resonance frequency, its magnetic permeability is all about 1.
The invention provides the material compared with nature more high magnetic permeability, for needing occasion magnetic permeability being had to particular/special requirement, Meta Materials provided by the invention can be applied wherein, solves the low technical problem causing the product that cannot manufacture magnetic permeability particular/special requirement of current material magnetic permeability.Certainly, except Fig. 2, Fig. 3, embodiment illustrated in fig. 4 except, man-made microstructure of the present invention can also have various deformation, as shown in Fig. 8 to 12, kink can be fillet or wedge angle, free end can connecting line segment also can not connecting line segment, Fig. 8 to 12 is the simplification of man-made microstructure, in fact, the structure in Fig. 8 to 12 all has certain width.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of distortion to man-made microstructure, these all belong within protection of the present invention.
Claims (9)
1. the Meta Materials of a high magnetic permeability, it is characterized in that, this material comprises at least one sheet of material, each sheet of material comprises two blocks of base materials and is clipped in the man-made microstructure in the middle of described two blocks of base materials, described two pieces of substrates are divided into the base board unit pair of multiple array arrangement virtually, each base board unit is attached with a man-made microstructure to centre, and outer surface upper part or the entirety of wherein one piece of substrate of described two pieces of substrates are coated with metal level, and the magnetic permeability of described Meta Materials is greater than 1 μ;
Described man-made microstructure comprises four branch roads of common intersection point, one end of arbitrary described branch road is connected with described intersection point, the other end is free end, described branch road comprises at least one kink, arbitrary described branch road with described intersection point for pivot successively dextrorotation turn 90 degrees, overlaps with other three branch roads respectively after 180 degree and 270 degree.
2. the Meta Materials of high magnetic permeability according to claim 1, is characterized in that, the kink of described man-made microstructure is right angle, fillet or wedge angle.
3. the Meta Materials of high magnetic permeability according to claim 1, is characterized in that, the free end of the arbitrary described branch road of described man-made microstructure is connected with a line segment.
4. the Meta Materials of high magnetic permeability according to claim 3, is characterized in that, the free end of described man-made microstructure branch road is connected with the mid point of described line segment.
5. the Meta Materials of high magnetic permeability according to claim 1, is characterized in that, the material of described metal level is copper or silver.
6. the Meta Materials of high magnetic permeability according to claim 1, is characterized in that, described man-made microstructure is made up of copper cash or silver-colored line.
7., according to the Meta Materials of the arbitrary described high magnetic permeability of claim 1 to 6, it is characterized in that, described substrate is ceramic material.
8., according to the Meta Materials of the arbitrary described high magnetic permeability of claim 1 to 6, it is characterized in that, described substrate is polytetrafluoroethylene.
9., according to the Meta Materials of the arbitrary described high magnetic permeability of claim 1 to 6, it is characterized in that, described substrate is ferrite material, ferromagnetic material or FR-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239978.XA CN102956978B (en) | 2011-08-19 | 2011-08-19 | A kind of Meta Materials of high magnetic permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239978.XA CN102956978B (en) | 2011-08-19 | 2011-08-19 | A kind of Meta Materials of high magnetic permeability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102956978A CN102956978A (en) | 2013-03-06 |
| CN102956978B true CN102956978B (en) | 2015-11-18 |
Family
ID=47765449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110239978.XA Active CN102956978B (en) | 2011-08-19 | 2011-08-19 | A kind of Meta Materials of high magnetic permeability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102956978B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393420A (en) * | 2014-11-25 | 2015-03-04 | 张永超 | Metamaterial with similar triangular microstructure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796139Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | High-order microwave composite functional material antenna of regular square single cell structure |
| CN101765358A (en) * | 2008-12-25 | 2010-06-30 | 西北工业大学 | Meta-material absorber based on dendritic structure |
| CN101946365A (en) * | 2008-02-20 | 2011-01-12 | 株式会社Emw | Metamaterial antenna using a magneto-dielectric material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1771756B1 (en) * | 2004-07-23 | 2015-05-06 | The Regents of The University of California | Metamaterials |
| US9570814B2 (en) * | 2008-09-11 | 2017-02-14 | Nec Corporation | Structure, antenna, communication device and electronic component |
-
2011
- 2011-08-19 CN CN201110239978.XA patent/CN102956978B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796139Y (en) * | 2005-05-19 | 2006-07-12 | 上海联能科技有限公司 | High-order microwave composite functional material antenna of regular square single cell structure |
| CN101946365A (en) * | 2008-02-20 | 2011-01-12 | 株式会社Emw | Metamaterial antenna using a magneto-dielectric material |
| CN101765358A (en) * | 2008-12-25 | 2010-06-30 | 西北工业大学 | Meta-material absorber based on dendritic structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102956978A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202150533U (en) | Resonant cavity | |
| CN103296409B (en) | Broadband metamaterial antenna house and antenna system | |
| CN104218325B (en) | A kind of effective dielectric constant and the artificial electromagnetic material of magnetic conductivity nearly zero | |
| CN102760966B (en) | Wide-band high-wave transmission metamaterial, antenna housing thereof and antenna system | |
| CN104157983B (en) | One-bit digital super surface | |
| CN203707330U (en) | Wave-transparent metamaterial | |
| CN102760965A (en) | Large-angle wave-transmitting metamaterial, antenna housing thereof and antenna system | |
| CN102544739B (en) | A kind of Meta Materials with high-k | |
| CN102956978B (en) | A kind of Meta Materials of high magnetic permeability | |
| CN103296419A (en) | Broadband metamaterial antenna housing and antenna system | |
| CN102800987B (en) | Metamaterial reflecting mirror | |
| CN103579773A (en) | Metamaterial, radome with same and antenna system | |
| CN202487770U (en) | Wide-band metamaterial antenna housing and antenna system | |
| CN102709694A (en) | Microwave radome and antenna system | |
| CN102810759B (en) | Novel metamaterial | |
| CN102856642B (en) | Wideband metamaterial antenna housing | |
| CN103367907B (en) | High wave transparent metamaterial antenna cover and antenna system | |
| CN102800981A (en) | Metamaterial with high negative permeability | |
| CN102810760B (en) | Novel metamaterial | |
| CN103199346B (en) | Metamaterial with high dielectric constant | |
| CN102683867B (en) | Metamaterial for collecting electromagnetic waves | |
| CN202662801U (en) | Broadband metamaterial antenna housing | |
| CN102810747B (en) | Metamaterial with high dielectric constant | |
| CN103001000B (en) | A kind of artificial electromagnetic material with broadband high refraction index and low dispersion characteristics | |
| CN102956986B (en) | Broadband high-refractive-index artificial electromagnetic material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |