CN103296347B - A kind of artificial electromagnetic material and use the wave filter of this material - Google Patents
A kind of artificial electromagnetic material and use the wave filter of this material Download PDFInfo
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- CN103296347B CN103296347B CN201210050240.3A CN201210050240A CN103296347B CN 103296347 B CN103296347 B CN 103296347B CN 201210050240 A CN201210050240 A CN 201210050240A CN 103296347 B CN103296347 B CN 103296347B
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- artificial electromagnetic
- closed curve
- electromagnetic material
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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 described artificial electromagnetic material lamella includes substrate and attachment metal micro structure on the substrate, described man-made microstructure is the remaining structure of etched pattern on solid metal sheet, described etched pattern includes a centrosymmetric closed curve and about described closed curve central point and a plurality of line segment of dividing described closed curve equally, present invention also offers a kind of wave filter using above-mentioned artificial electromagnetic material, this wave filter, including resonator cavity and the harmonic oscillator being positioned at intra resonant cavity, wherein harmonic oscillator uses 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 the miniaturization being conducive to wave filter in wave filter.
Description
[technical field]
The present invention relates to field of new, be specifically related to a kind of artificial electromagnetic material with high-k
Expect and use the wave filter of this material.
[background technology]
Dielectric constant is a material parameter to electric field response, and material can produce sensing when extra electric field
Electric charge and weaken electric field, it is normal that the extra electric field in former vacuum and the ratio of electric field in final material are dielectric
Number.
In nature, any material under given conditions, have its specific dielectric constant values or
Person's dielectric constant curve.The material that dielectric constant is higher is put in the electric field, and the intensity of electric field can be at electrolyte
Considerable decline is had in material.In high dielectric constant material, electromagnetic wavelength is the shortest, can significantly contract
Little radio frequency and the size of microwave device.
The development maked rapid progress along with technology, the application of material is required more and more higher, in some field by people
Closing, required dielectric constant values is far above the dielectric constant values of the existing material of nature, existing Jie
The dielectric insulator that electric constant is higher can not reach requirement, and this will cause bottleneck for technology and research and development of products.
Therefore, people turn to made artificial electromagnetic material.
Wave filter is one of common devices in radiotechnics, is widely used in communication, radar, leads
In the electronic equipments such as boat, electronic countermeasure, satellite, test instrumentation.Wave filter has resonator cavity, wave filter
Volume depend primarily on number and the volume of resonator cavity.And the resonant frequency of microwave cavity depends on this
The volume in chamber, in general, the biggest resonant frequency of volume of resonant cavity is the lowest, the least resonance of volume of resonant cavity
Frequency is the highest, the most how to realize reducing the resonance frequency of resonator cavity in the case of not increasing resonant cavity size
Rate has great importance for the miniaturization of wave filter.
The harmonic oscillator with low-loss, high-k is generally set in resonator cavity, it is possible to do not changing
The resonant frequency of resonator cavity is effectively reduced under conditions of the volume of resonator cavity, but general along with dielectric constant
Increase, loss also can increase therewith, and the amplification being lost is significantly larger than the amplification of dielectric constant
Multiple.
[summary of the invention]
The technical problem to be solved is: for the defect of prior art, it is provided that one has height
Dielectric constant artificial electromagnetic material.
The technical solution adopted for the present invention to solve the technical problems is: a kind of artificial electromagnetic material, including
At least one sheet of material, described sheet of material includes substrate and attachment on the surface of the substrate multiple artificial
Micro structure, described man-made microstructure is the remaining structure of etched pattern on solid metal sheet, described erosion
Needle drawing case include a centrosymmetric closed curve and about described closed curve central point and
Divide a plurality of line segment of described closed curve equally.
One end of described every line segment is in described closed curve, and the other end of described every line segment is freely
End, described free end is on described closed curve or outside described closed curve.
The bar number of described line segment is even number.
Described centrosymmetric closed curve is square or circular or rectangle.
Described closed curve and every line segment are all made up of the closed hollow structure being sequentially connected.
Described closed hollow structure is square, circular, triangle or rectangle.
Described closed hollow structure is connected with point for point or limit is connected with limit or face and face partial intersection.
A kind of wave filter, including resonator cavity and the harmonic oscillator being positioned at resonator cavity, described harmonic oscillator is artificial
Electromagnetic material, this artificial electromagnetic material includes at least one artificial electromagnetic material lamella, each described manually
Electromagnetic material lamella includes substrate and attachment metal micro structure on the substrate, described man-made microstructure
For the remaining structure of etched pattern on solid metal sheet, described etched pattern includes a centrosymmetry
Closed curve and about described closed curve central point and divide a plurality of of described closed curve equally
Line segment.
One end of described every line segment is in described closed curve, and the other end of described every line segment is freely
End.
The bar number of described line segment is even number.
Implement the method have the advantages that, by attachment on substrate, there is the geometric form of the present invention
The man-made microstructure of shape so that artificial electromagnetic material has higher dielectric constant, by this artificial electromagnetic material
The miniaturization being conducive to wave filter in wave filter applied by material.
[accompanying drawing explanation]
Fig. 1 is the knot of a material cell of a kind of artificial electromagnetic material mentioned in the embodiment of the present invention
Composition；
Fig. 2 is the scale diagrams of material cell shown in Fig. 1；
Fig. 3 is the structural representation of the artificial electromagnetic material comprising the composition of material cell shown in Fig. 1；
Fig. 4 is the simulated effect figure of the artificial electromagnetic material of the composition of material cell shown in Fig. 2；
Fig. 5 is a material cell of the another kind of artificial electromagnetic material mentioned in the embodiment of the present invention
Structure chart.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Embodiment, is further elaborated to the present invention.Should be appreciated that described herein being embodied as
Example only in order to explain the present invention, is not intended to limit the present invention.
The present invention relates to a kind of artificial electromagnetic material, as it is shown on figure 3, include at least one sheet of material,
Each sheet of material includes substrate 1 and attachment multiple man-made microstructure 2 on the surface of the substrate, substrate by
Macromolecular material or ceramic material are made, conventional macromolecular material such as politef, epoxy resin etc..
Man-made microstructure 2 is on the surface of the substrate in periodic arrangement, and such as rectangular array is arranged, and with X-axis is i.e.
Go, arrange for row with the Y-axis being perpendicular to X-axis, and each line space, each column pitch are the most equal, even
Line space is equal to column pitch.When sheet of material has multiple, each sheet of material is along being perpendicular to substrate table
The Z axis in face is arranged in order, arranged in parallel between sheet of material.
Due to man-made microstructure 2 array arrangement, therefore substrate 1 can be virtually divided into same array
Multiple base board units 20 of arrangement, the length of base board unit 20 is equal to row equal to above-mentioned line space, width
Spacing, thickness are equal to the thickness of substrate.On the surface of each base board unit just to should have one artificial micro-
Structure.
It is an advantage of the current invention that to devise a kind of there is new geometric man-made microstructure 2, people
Making micro structure 2 for the remaining structure of etched pattern on solid metal sheet 3, the pattern etched away is attached
Being shown that black in figure, on solid metal sheet 3, remaining white is man-made microstructure 2；This etch figures(s)
Case include a centrosymmetric closed curve and about described closed curve central point distribution and
Dividing a plurality of line segment of described closed curve equally, one end of every line segment is in centrosymmetry closed curve, separately
One end is free end, and this free end can be all on closed curve or all outside closed curve, it is possible to
With a portion last point of closed curve outside closed curve, and the bar number of this line segment is even number,
Closed curve and every line segment are all made up of the closed hollow structure being sequentially connected, and this closed hollow structure can
To be square, circle, triangle, rectangle, it is also possible to be other shapes applicatory.
As it is shown in figure 1, in etched pattern, this centrosymmetric closed curve is square in the present embodiment,
And this square is bisected into eight equal portions by eight line segments 5,6,7,8,9,10,11,12, wherein
Article four, the free end 14 of line segment 5,7,9,11 is on closed curve, another four line segments 6,8,10,
The free end 13 of 12 is outside closed curve, and the free end four line segments on closed curve and freedom
Alternately arranged and adjacent two lines section the angle of the end four line segments outside closed curve is 45 °；These are eight years old
Bar line segment and closed curve are all made up of the hollow little square being sequentially connected, and the center of closed curve
Point 4 is also hollow little square, and meanwhile, the hollow little square of this closed curve is to angle point and diagonal angle
Point is connected, and the hollow little square of four line segments that free end is on closed curve to be limit be connected with limit,
Additionally the hollow little square of the free end four line segments outside closed curve be to angle point with to angle point phase
Even；Meanwhile, the hollow little square of the free end in the free end four line segments on closed curve with
Hollow little square at the diagonal angle of square closed curve uses edge-to-edge to be connected, in addition, it is possible to
Angle point is connected with to angle point or face is connected with face partial intersection to use；
During as in figure 2 it is shown, solid metal sheet 3 is square, the foursquare length of side is 1.9mm, each
The size of base board unit is 0.8mm × 2mm × 2mm, and wherein 0.8mm is the thickness of substrate；Etched pattern
Middle closed curve be each edge in square by seven hollow little squares to angle point with to angle point phase
Even composition, this hollow little foursquare side length b is 0.1mm；On closed curve four of free end
Line segment is connected with limit by six hollow little square limits respectively and constitutes, this hollow little foursquare length of side a
For 0.1mm；The free end four line segments outside closed curve are respectively by seven hollow little square diagonal angles
Point is connected with to angle point composition, and this hollow little foursquare length of side c is 0.1mm, and while with conduct
Angle point is also connected by the hollow little square of closed curve central point with to angle point, central spot hollow little
Foursquare length of side d is also 0.1mm.
The material of this metal micro structure is copper, it is also possible to being other conductive material, substrate uses Jie
Electric constant is the ceramic material of 35, and metal micro structure leads to overetched method and is attached on substrate, it is possible to
With use plating, bore carve, electronics is carved or the method such as ion quarter.As shown in Figure 4 in the present embodiment
Artificial electromagnetic material carries out emulating the dielectric constant properties curve synoptic diagram obtained, as shown in Figure 4,
In the range of 1.5GHz～3GHz, the dielectric constant of this artificial electromagnetic material is about 111, relative to pure pottery
Material, the dielectric constant of this artificial electromagnetic material improves about 3 times, simultaneously this artificial electromagnetic material
Electromagnetic consumable is not significantly increased.
This closed curve can also be connected with square mixing by circular with line segment, is formed as shown in Figure 5
Shape, and can be point-to-point being connected, it is also possible to it is that edge-to-edge is connected, it is also possible to be face and face part
Intersect and be connected.
Present invention also offers a kind of wave filter using above-mentioned artificial electromagnetic material, this wave filter includes humorous
The harmonic oscillator that shaking chamber and is positioned at resonator cavity, harmonic oscillator therein uses the artificial electromagnetic material in the present embodiment
Material.Owing to the artificial electromagnetic material in the present embodiment has higher dielectric constant, so using this artificial
The harmonic oscillator of electromagnetic material is conducive to the miniaturization of wave filter.
By modes such as the shape and size of the number of plies of substrate, metal micro structure in change medium substrate, can
To adjust and to improve the dielectric constant of medium substrate further so that it is meet special occasions to high-k
Demand.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in
The detailed description of the invention stated, above-mentioned detailed description of the invention is only schematic rather than restrictive,
Those of ordinary skill in the art is under the enlightenment of the present invention, without departing from present inventive concept and claim
Many variations is it may also be made that under the ambit protected.Such as metal micro structure can be that other are various several
What shape, solid metal sheet is not limited to square, it is also possible to be the shapes such as circle, rectangle, center pair
The closed curve claimed can also be rectangle, circle etc.；Metal micro structure is not limited to be distributed in the one of substrate
On individual face, metal micro structure can be attached on positive and negative two faces of substrate, it is also possible to is in two substrates
Between, within these belong to protection scope of the present invention.
Claims (10)
1. an artificial electromagnetic material, including at least one sheet of material, described sheet of material include substrate and
Attachment multiple man-made microstructure on the surface of the substrate, it is characterised in that described man-made microstructure is in reality
The remaining structure of etched pattern on heart sheet metal, described etched pattern includes a centrosymmetric closing
Curve and about described closed curve central point and a plurality of line segment of dividing described closed curve equally.
Artificial electromagnetic material the most according to claim 1, it is characterised in that the one of every described line segment
End is in described closed curve, and the other end of every described line segment is free end, and described free end is described
On closed curve or outside described closed curve.
Artificial electromagnetic material the most according to claim 1 and 2, it is characterised in that the bar of described line segment
Number is even number.
Artificial electromagnetic material the most according to claim 1, it is characterised in that described centrosymmetric envelope
Closed curve is square or circular or rectangle.
Artificial electromagnetic material the most according to claim 1, it is characterised in that described closed curve is with every
Bar line segment is all made up of the closed hollow structure being sequentially connected.
Artificial electromagnetic material the most according to claim 5, it is characterised in that described closed hollow structure
For square, circular, triangle or rectangle.
Artificial electromagnetic material the most according to claim 6, it is characterised in that described closed hollow structure
Be connected with point for point or limit is connected with limit or face and face partial intersection.
8. a wave filter, including resonator cavity and the harmonic oscillator being positioned at resonator cavity, it is characterised in that described
Harmonic oscillator is artificial electromagnetic material, and this artificial electromagnetic material includes at least one artificial electromagnetic material lamella,
Each described artificial electromagnetic material lamella includes substrate and attachment metal micro structure on the substrate, institute
State metal micro structure to include for the remaining structure of etched pattern on solid metal sheet, described etched pattern
One centrosymmetric closed curve and about described closed curve central point and divide described envelope equally
The a plurality of line segment of closed curve.
Wave filter the most according to claim 8, it is characterised in that one end of every described line segment is in institute
Stating in closed curve, the other end of every described line segment is free end, and described free end closes song described
On line or outside described closed curve.
Wave filter the most according to claim 8 or claim 9, it is characterised in that the bar number of described line segment is even
Number.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050240.3A CN103296347B (en) | 2012-02-29 | 2012-02-29 | A kind of artificial electromagnetic material and use the wave filter of this material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050240.3A CN103296347B (en) | 2012-02-29 | 2012-02-29 | A kind of artificial electromagnetic material and use the wave filter of this material |
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| CN103296347A CN103296347A (en) | 2013-09-11 |
| CN103296347B true CN103296347B (en) | 2016-12-14 |
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| CN113745842B (en) * | 2021-08-23 | 2023-12-26 | 东风汽车集团股份有限公司 | Metamaterial wave-absorbing structure applied to millimeter wave radar and vehicle antenna thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874053A (en) * | 2006-06-08 | 2006-12-06 | 上海交通大学 | Miniaturized band-pass filter with harmonic suppression for loading fan-shaped offset of microstrip |
| CN101867094A (en) * | 2010-05-02 | 2010-10-20 | 兰州大学 | Focusing panel antenna |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6885355B2 (en) * | 2002-07-11 | 2005-04-26 | Harris Corporation | Spatial filtering surface operative with antenna aperture for modifying aperture electric field |
| JP4029172B2 (en) * | 2003-03-04 | 2008-01-09 | 株式会社村田製作所 | Dielectric filter, duplexer, and high-frequency communication device |
| CN102341961B (en) * | 2009-03-06 | 2015-05-27 | 日本电气株式会社 | Resonator antenna and communication apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874053A (en) * | 2006-06-08 | 2006-12-06 | 上海交通大学 | Miniaturized band-pass filter with harmonic suppression for loading fan-shaped offset of microstrip |
| CN101867094A (en) * | 2010-05-02 | 2010-10-20 | 兰州大学 | Focusing panel antenna |
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Effective date of registration: 20210422 Address after: 518057 2 / F, software building, No.9, Gaoxin Middle Road, Nanshan District, Shenzhen, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |