CN103296353B - A kind of artificial electromagnetic material and the wave filter using the material - Google Patents
A kind of artificial electromagnetic material and the wave filter using the material Download PDFInfo
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- CN103296353B CN103296353B CN201210050934.7A CN201210050934A CN103296353B CN 103296353 B CN103296353 B CN 103296353B CN 201210050934 A CN201210050934 A CN 201210050934A CN 103296353 B CN103296353 B CN 103296353B
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Abstract
The present invention relates to a kind of artificial electromagnetic material, including at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella includes the metal micro structure of substrate and attachment on the substrate, the metal micro structure include solid metal blade unit and with the solid metal blade unit be generally aligned in the same plane from solid metal blade unit at least two branch units extended around；Present invention also offers a kind of wave filter using above-mentioned artificial electromagnetic material, the wave filter, including resonator and the harmonic oscillator positioned at intra resonant cavity, wherein harmonic oscillator are above-mentioned artificial electromagnetic material；Its dielectric constant of artificial electromagnetic material with this metal micro structure is significantly increased, and this artificial electromagnetic material is applied to the miniaturization for being advantageous to wave filter in wave filter.
Description
Technical field
The present invention relates to field of new materials, more specifically to a kind of artificial electromagnetic material with high-k
And the wave filter using the material.
Background technology
Dielectric constant is a parameter of the material to electric field response, and material can produce charge inducing in extra electric field and cut
Weak electric field, the ratio of electric field is dielectric constant in the extra electric field and final material in former vacuum.
In nature, any material under given conditions, has its specific dielectric constant values or dielectric normal
Number curve.The higher material of dielectric constant is put in the electric field, and the intensity of electric field can have considerable decline in dielectric substance.
In high dielectric constant material, electromagnetic wavelength is very short, can be substantially reduced the size of radio frequency and microwave device.
As the development that technology is maked rapid progress, people are required in some occasions to the application requirement more and more higher of material
Dielectric constant values be far above the existing material of nature dielectric constant values, the higher dielectric insulator of existing dielectric constant
Requirement can not be reached, this will be that technology and research and development of products cause bottleneck.Therefore, people turn to made artificial electromagnetic material
Material.
Wave filter is one of common devices in radiotechnics, is widely used in communication, radar, navigation, electronics pair
In the electronic equipments such as anti-, satellite, test instrumentation.Wave filter has resonator, and the volume of wave filter depends primarily on resonator
Number and volume.And the resonant frequency of microwave cavity depends on the volume of the chamber, in general, the bigger resonance of volume of resonant cavity
Frequency is lower, and the smaller resonant frequency of volume of resonant cavity is higher, therefore how to realize and dropped in the case where not increasing resonant cavity size
Miniaturization of the resonant frequency of low resonator for wave filter has great importance.
, can be in the bar for the volume for not changing resonator by setting the harmonic oscillator with high-k in resonator
The resonant frequency of resonator is effectively reduced under part, is advantageous to the miniaturization of wave filter.
The content of the invention
The technical problem to be solved in the present invention is, the defects of for prior art, there is provided one kind has high-k
Artificial electromagnetic material.
The technical solution adopted for the present invention to solve the technical problems is：A kind of artificial electromagnetic material is constructed, including at least
One artificial electromagnetic material lamella, each artificial electromagnetic material lamella include the metal of substrate and attachment on the substrate
Micro-structural, the metal micro structure include solid metal blade unit and with the solid metal blade unit be generally aligned in the same plane by
Solid metal blade unit is at least two branch units extended around.
In a preferred embodiment of the invention, the solid metal blade unit is rectangle.
In a preferred embodiment of the invention, the solid metal blade unit is square.
In a preferred embodiment of the invention, the solid metal blade unit is circle.
In a preferred embodiment of the invention, the substrate be ceramic material, FR-4 (glass-epoxy),
F4B (polytetrafluoroethylglass glass cloth), polymer matrix composites, ferroelectric material, ferrite material or ferromagnetic material.
In a preferred embodiment of the invention, it is square from the solid metal blade unit to the branch units extended around
Shape.
In a preferred embodiment of the invention, it is arc from the solid metal blade unit to the branch units extended around
Shape.
Present invention also offers a kind of wave filter using above-mentioned artificial electromagnetic material, the wave filter, including resonator and
Positioned at the harmonic oscillator of intra resonant cavity, the harmonic oscillator is artificial electromagnetic material, and the artificial electromagnetic material includes at least one people
Work electromagnetic material lamella, each artificial electromagnetic material lamella include the micro- knot of metal of substrate and attachment on the substrate
Structure, the metal micro structure include solid metal blade unit and with the solid metal blade unit be generally aligned in the same plane by solid
Metal blade unit is at least two branch units extended around.
In a preferred embodiment of the invention, the solid metal piece is rectangle or circle.
In a preferred embodiment of the invention, the substrate be ceramic material, FR-4, F4B, polymer matrix composites,
Ferroelectric material, ferrite material or ferromagnetic material.
Implement the invention has the advantages that：By setting metal micro structure artificial electromagnetic material on substrate
With higher dielectric constant, the artificial electromagnetic material is applied to the miniaturization for being advantageous to wave filter in wave filter.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is a kind of structural representation for the metal micro structure mentioned in the embodiment of the present invention；
Fig. 2 is comprising metal micro structure shown in Fig. 1 and with the artificial electromagnetic material of an artificial electromagnetic material lamella
Structural representation；
Fig. 3 is the dielectric constant properties emulation schematic diagram of artificial electromagnetic material shown in Fig. 2；
Fig. 4 is comprising metal micro structure shown in Fig. 1 and with the artificial electromagnetic material of four artificial electromagnetic material lamellas
Structural representation；
Fig. 5 is another structural representation of metal micro structure.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present embodiment provides a kind of artificial electromagnetic material as shown in Fig. 2 including an artificial electromagnetic material lamella；Certainly
Multiple artificial electromagnetic material lamellas can be included, artificial electromagnetic material as shown in Figure 4 includes 4 artificial electromagnetic material lamellas,
When with multiple artificial electromagnetic material lamellas, the direction of adjacent artificial electromagnetic material lamella along vertical lower surface thereon can be with
By mechanically connect, weld or between adjacent artificial electromagnetic material lamella filling can material connecting the two both are glued
The modes such as conjunction are assembled integrally.
As shown in Fig. 2 artificial electromagnetic material lamella includes substrate and is attached to multiple gold of substrate surface in the present embodiment
Belong to micro-structural, each artificial electromagnetic material lamella is virtually divided into the artificial electromagnetic material unit of multiple array arrangements, such as
In Fig. 2 shown in dotted line, a metal micro structure is adhered on each artificial electromagnetic material unit, metal micro structure includes square
Sheet metal and the multiple rectangle branches being generally aligned in the same plane with square-shaped metal piece, each side of each square-shaped metal piece are outside
Extend 10 rectangle branches in portion；As shown in figure 1, size a × a of each artificial electromagnetic material unit is 3mm × 3mm, attachment
It is 2mm × 2mm in size b × b of square-shaped metal piece thereon, 10 rectangles that square each bar side extends outward out
Size c × e of branch is 0.1mm × 0.45mm, and the spacing of adjacent rectangle branch is 0.1mm, each rectangle branch and people where it
The distance d of the neighboring edge of work electromagnetic material unit is 0.05mm.
The material of metal micro structure is copper, naturally it is also possible to is other conductive materials；Substrate uses dielectric constant as 35
Ceramic material, naturally it is also possible to using FR-4, F4B, polymer matrix composites, ferroelectric material, ferrite material or ferromagnetic material.
Metal micro structure leads to overetched mode and is attached on substrate, certain metal micro structure can also use plating, carve, photoetching,
The modes such as electronics is carved or ion is carved are attached on substrate.Fig. 3 is that the artificial electromagnetic material in the present embodiment emulate
The dielectric constant properties curve synoptic diagram arrived, from the figure 3, it may be seen that in the range of 0.1GHz~1.3GHz the artificial electromagnetic material Jie
Electric constant is 103 or so, and relative to pure ceramic material, the dielectric constant of the artificial electromagnetic material is greatly improved, simultaneously
The electromagnetic consumable of the artificial electromagnetic material is not significantly increased.
Present invention also offers a kind of wave filter using above-mentioned artificial electromagnetic material, the wave filter includes resonator and position
In the harmonic oscillator in resonator, harmonic oscillator therein uses the artificial electromagnetic material in the present embodiment.Due in the present embodiment
Artificial electromagnetic material has higher dielectric constant, so being advantageous to the small of wave filter using the harmonic oscillator of the artificial electromagnetic material
Type.
, can be further by changing the modes such as the number of plies of substrate in medium substrate, the shape and size of metal micro structure
Adjustment and the dielectric constant for improving medium substrate, make it meet the needs of special occasions is to high-k.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, many changes can be also made in the case of present inventive concept and scope of the claimed protection is not departed from
Shape.For example metal micro structure can be other various geometries, solid metal piece be not limited to square can be rectangle or
The shapes such as person's circle, what is stretched out by solid metal piece is in conplane branch units with solid metal piece and is not limited to square
Shape can beyond the shape such as other shapes such as arc；Solid metal piece in metal micro structure as shown in Figure 5 is circle, round
What shape sheet metal stretched out branches into arc；Metal micro structure is not limited to be distributed on a face of substrate, metal micro structure
Can be attached on positive and negative two faces of substrate or between two substrates, these belong to the present invention protection it
It is interior.
Claims (10)
1. a kind of artificial electromagnetic material, including at least one artificial electromagnetic material lamella, each artificial electromagnetic material lamella
Including metal micro structure substrate and attachment on the substrate, it is characterised in that the metal micro structure includes solid metal
Blade unit and it is generally aligned in the same plane with the solid metal blade unit single from solid metal blade unit to the branch that extends around
Member, it is arranged at intervals per two adjacent metal micro structures；Each side of each solid metal blade unit extends outward
Go out 10 rectangular branch units, the size of each solid metal blade unit is 2mm × 2mm, each described point
Zhi Danyuan size is 0.1mm × 0.45mm, and the spacing of the two neighboring branch units is 0.1mm, each branch units
Distance with the neighboring edge of artificial electromagnetic material unit where it is 0.05mm.
2. artificial electromagnetic material according to claim 1, it is characterised in that the solid metal blade unit is rectangle.
3. artificial electromagnetic material according to claim 2, it is characterised in that the solid metal blade unit is square.
4. artificial electromagnetic material according to claim 1, it is characterised in that the solid metal blade unit is circle.
5. artificial electromagnetic material according to any one of claims 1 to 4, it is characterised in that the substrate be ceramic material,
FR-4, F4B, polymer matrix composites, ferroelectric material, ferrite material or ferromagnetic material.
6. artificial electromagnetic material according to claim 5, it is characterised in that prolonged from the solid metal blade unit to surrounding
The branch units stretched is rectangle.
7. artificial electromagnetic material according to claim 5, it is characterised in that prolonged from the solid metal blade unit to surrounding
The branch units stretched is arc.
8. a kind of wave filter, including resonator and the harmonic oscillator positioned at intra resonant cavity, it is characterised in that the harmonic oscillator is behaved
Work electromagnetic material, the artificial electromagnetic material include at least one artificial electromagnetic material lamella, each artificial electromagnetic material piece
Layer includes substrate and attachment metal micro structure on the substrate, the metal micro structure include solid metal blade unit and with
The solid metal blade unit be generally aligned in the same plane from solid metal blade unit to the branch units extended around, per adjacent
Two metal micro structures are arranged at intervals；Each side of each solid metal blade unit extend outward out 10 it is rectangular
The branch units, the size of each solid metal blade unit be 2mm × 2mm, each the size of the branch units
For 0.1mm × 0.45mm, the spacing of the two neighboring branch units is 0.1mm, and each branch units and its place are artificial
The distance of the neighboring edge of electromagnetic material unit is 0.05mm.
9. wave filter according to claim 8, it is characterised in that the solid metal piece is rectangle or circle.
10. according to the wave filter described in claim 8 or 9, it is characterised in that the substrate be ceramic material, FR-4, F4B,
Polymer matrix composites, ferroelectric material, ferrite material or ferromagnetic material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050934.7A CN103296353B (en) | 2012-02-29 | 2012-02-29 | A kind of artificial electromagnetic material and the wave filter using the material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050934.7A CN103296353B (en) | 2012-02-29 | 2012-02-29 | A kind of artificial electromagnetic material and the wave filter using the material |
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| CN103296353A CN103296353A (en) | 2013-09-11 |
| CN103296353B true CN103296353B (en) | 2018-02-16 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866088A (en) * | 2010-06-04 | 2010-10-20 | 内蒙古科技大学 | Manufacture method of two-dimensional left-handed material based on plan periodic structure |
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2012
- 2012-02-29 CN CN201210050934.7A patent/CN103296353B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866088A (en) * | 2010-06-04 | 2010-10-20 | 内蒙古科技大学 | Manufacture method of two-dimensional left-handed material based on plan periodic structure |
Non-Patent Citations (2)
| Title |
|---|
| Electromagnetic metamaterials:transmission line theory and microwave applications;CHRISTOPHE CALOZ,TATSUO ITOH;《Wiley Interscience》;20061231;第171-172页 * |
| The Design Synthesis of Multiband Artificial Magnetic Conductors Using High Impedance Frequency Selective Surfaces;Douglas J. Kern，Douglas H. Werner;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20050131;第53卷(第1期);第8-17页 * |
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Effective date of registration: 20210508 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 18B, building a, CIC international business center, 1061 Xiangmei Road, Futian District, Shenzhen, Guangdong 518034 Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |