CN103582402B - A kind of absorbing material - Google Patents
A kind of absorbing material Download PDFInfo
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- CN103582402B CN103582402B CN201210275383.4A CN201210275383A CN103582402B CN 103582402 B CN103582402 B CN 103582402B CN 201210275383 A CN201210275383 A CN 201210275383A CN 103582402 B CN103582402 B CN 103582402B
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Abstract
The present invention relates to a kind of absorbing materials, including at least one sheet of material, each sheet of material includes three laminar substrates, the substrate is from top to bottom respectively first substrate, the second substrate and third substrate, every laminar substrate includes at least one base board unit, and the upper surface of each base board unit is attached with metal micro structure；The base board unit size of first substrate and the size of metal micro structure gradually become smaller while to opposite other from first substrate, and man-made microstructure is hollow annular structure；The metal micro structure of the upper surface attachment of the base board unit of the second substrate curls up to form two mutually disjoint helical structures respectively inwards for the both ends of open annular structure and split ring；The metal micro structure adhered on the metal micro structure and the base board unit of the second substrate of the upper surface attachment of the base board unit of third substrate is complementary.Absorbing material with above structure has preferable absorbing property in low-frequency range.
Description
Technical field
The present invention relates to a kind of Novel manual electromagnetic materials, have more specifically to one kind in low-frequency range and preferably inhale
The absorbing material of wave performance.
Background technique
With the development of modern science and technology, influence of the electromagenetic wave radiation to environment increasingly increases.On airport, airplane flight
Because that Electromagnetic Interference can not take off is overdue；In hospital, mobile phone can often interfere the normal work of various electronic instrument for diagnosing and curing diseases devices.
Therefore, electromagnetic pollution is administered, a kind of material that can be kept out and weaken electromagenetic wave radiation is found --- absorbing material, it has also become material
One big project of science.
Absorbing material is to refer to effectively absorb a kind of material for being incident on the electromagnetic wave energy on its surface, it passes through material
A variety of different loss mechanisms by incident electromagnetic wave be converted to thermal energy either other form of energy and achieve the purpose that inhale wave.
Absorbing material has structural type and application type, the former is mainly wedge shape, foam shape, plate shaped etc., and the latter is by binder, absorbent
It is combined, the ability for inhaling wave is mainly related with absorbent type.
Artificial electromagnetic material is a kind of novel artificial synthetic material that response can be generated to electromagnetic wave, by substrate and attached
On substrate man-made microstructure composition.Since man-made microstructure is usually to be arranged by conductive material with certain geometry
The structure of pattern, therefore response can be generated to electromagnetic wave, so that Meta Materials be made integrally to embody the electromagnetism spy different from substrate
Property, such as permittivity ε and magnetic permeability μ difference, according to refractive index formulaIt is found that refractive index n is also different.Artificial electricity
Magnetic material becomes the new direction of absorbing material research.By designing special man-made microstructure, it is available being capable of broadband absorbing
Material, and change man-made microstructure size and shape, can change its inhale wave frequency section.
Summary of the invention
The technical problem to be solved in the present invention is that designing a kind of absorbing material, which had in low-frequency range
The artificial electromagnetic material of preferable absorbing property.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of absorbing material, including at least one
Sheet of material, each sheet of material include three laminar substrates, and the substrate is from top to bottom respectively first substrate, the second substrate
With third substrate, every laminar substrate includes at least one base board unit, and the upper surface of each base board unit is attached with man-made microstructure,
It further include the sheet metal positioned at the lower surface of the third substrate；In the base board unit size and base board unit of the first substrate
The size of the man-made microstructure of attachment gradually becomes smaller while to opposite other from first substrate, each of first substrate
Adhere to a man-made microstructure on base board unit, which is hollow annular structure；In the substrate of the second substrate
The man-made microstructure of the upper surface attachment of unit curls up to form two respectively inwards for the both ends of open annular structure and split ring
Helical structure, the helical structure mutually disjoint；In artificial micro- knot of the upper surface attachment of the base board unit of the third substrate
The man-made microstructure adhered on structure and the base board unit of the second substrate is complementary.
In a preferred embodiment of the invention, the hollow annular structure is circular rings.
In a preferred embodiment of the invention, the hollow annular structure is polygon ring.
In a preferred embodiment of the invention, the man-made microstructure on the adjacent base board unit of the second substrate
The opening direction of split ring be mutually perpendicular to.
In a preferred embodiment of the invention, the split ring is rectangular aperture ring, the inward at both ends of the split ring
Curl up the helical structure to form that bending angle is right angle.
In a preferred embodiment of the invention, the split ring is circular open ring, the inward at both ends of the split ring
Curl up rounded helical structure；Or the split ring is elliptical openings ring, the inward at both ends of the split ring is curled up in ellipse
Round screw thread structure.
In a preferred embodiment of the invention, the man-made microstructure is made of an electrically conducting material.
In a preferred embodiment of the invention, the substrate be ceramic material, FR-4, F4B, polymer matrix composites,
Ferroelectric material, ferrite material, ferromagnetic material or epoxy glass cloth laminated board.
In a preferred embodiment of the invention, the man-made microstructure is by silver, copper, ITO, graphite or carbon nanotube system
At；
In a preferred embodiment of the invention, the man-made microstructure by etch, be electroplated, carving, photoetching, electronics quarter
Or ion quarter is attached on the substrate.
Implement the present invention, it is preferable to have the advantages that the absorbing material with above structure has in low-frequency range
Microwave absorbing property.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the front view of the absorbing material in embodiment；
Fig. 2 is the schematic diagram of the upper surface attachment man-made microstructure of first substrate in Fig. 1；
Fig. 3 is the schematic diagram of the upper surface attachment man-made microstructure of the second substrate in Fig. 1；
Fig. 4 is the schematic diagram of the upper surface attachment man-made microstructure of third substrate in Fig. 1；
Fig. 5 is absorbing material its S in Fig. 111Characteristic Simulation schematic diagram.
Specific embodiment
The present embodiment provides a kind of absorbing materials, as shown in Figure 1, including an artificial electromagnetic material lamella, certainly may be used
To include multiple artificial electromagnetic material lamellas, when with multiple artificial electromagnetic material lamellas, adjacent artificial electromagnetic material lamella
Direction along vertical lower surface thereon can be by mechanical connection, welding or between adjacent artificial electromagnetic material lamella
Filling can substance connecting the two by the two bond etc. modes be assembled integrally.Artificial electromagnetic material lamella packet shown in Fig. 1
Include three laminar substrates, three laminar substrates are respectively first substrate 1, the second substrate 2 and third substrate 3 from top to bottom, attached on every laminar substrate
Have man-made microstructure, as shown in figure 1 shown in 4,5 and 6, adjacent substrate is integrated by adhesive bond, naturally it is also possible to be passed through
The modes such as mechanical connection or welding are assembled integrally.Every laminar substrate is virtually divided at least one base board unit, each
The upper surface of base board unit is attached with man-made microstructure, and copper sheet 7 is also attached on the lower surface of third substrate 3, certainly may be used
Think other sheet metals；As shown in Fig. 2, first substrate 1 is virtually divided into 35 base board units, each base board unit it is upper
1 hollow round becket, base board unit and the hollow round becket horizontal direction in Fig. 2 adhered to thereon are adhered in surface
Size is identical, and the size of vertical direction is gradually reduced from the bottom to top in Fig. 2；Cavity ring is not limited to hollow circular rings, or
Hollow polygon ring.Since the change of man-made microstructure size is so that refractive index on first substrate is bottom-up is gradually reduced,
The deflection that electromagnetic wave may be implemented, advantageously reduces back wave.
Include four base board units in the second substrate 2 shown in Fig. 3, adheres to an artificial micro- knot on each base board unit
Structure, which is rectangular aperture ring, and the inward at both ends of rectangular aperture ring curls up the helical structure to form that bending angle is right angle；
The opening direction of the split ring of micro-structure on adjacent substrate unit is mutually perpendicular to；Certain split ring may be circular open
Ring, the inward at both ends of split ring curl up rounded helical structure；Split ring may be elliptical openings ring, the both ends of split ring
Inwardly curl up oval helical structure.
The artificial micro- knot adhered in the man-made microstructure shape and the second substrate 2 adhered on third substrate 3 as shown in Figure 4
It is configured shape complementation, i.e., the place of the upper surface attachment man-made microstructure of the second substrate 2 is in the corresponding position in the upper surface of third substrate 3
Set non-cohesive man-made microstructure, the place of man-made microstructure is not adhered in the upper of third substrate 3 in the upper surface of the second substrate 2
Enclose man-made microstructure in the corresponding place in surface
Man-made microstructure is made of copper wire, naturally it is also possible to for other conductive material such as silver, ITO, graphite or carbon
Nanotube etc..Man-made microstructure is led to overetched mode and is attached on corresponding substrate, naturally it is also possible to using be electroplated, carve,
The modes such as photoetching, ion quarter are attached on corresponding substrate,
The material selection epoxy glass cloth laminated board of substrate, naturally it is also possible to multiple for ceramic material, FR-4, F4B, resin base
Condensation material, ferroelectric material, ferrite material or ferromagnetic material etc..
Fig. 5 is its S of the absorbing material with above structure11Characteristic Simulation schematic diagram, as shown in Figure 5,2GHz~4.2GHz
In frequency range, S11Less than -6dB；Due to adhering to copper sheet 7 in the lower surface of third substrate 3, so S21Generally -100dB once, by
In S11And S21Value it is all smaller in 2GHz~4.2GHz frequency range, so the absorbing material have in above-mentioned low-frequency range it is preferable
Absorbing property.
The number of plies, the shape and size of man-made microstructure by changing substrate in medium substrate can further adjust suction wave
The suction wave frequency section of material, makes it meet the needs of special frequency channel is to microwave absorbing property.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, many changes can be also made without breaking away from the scope protected by the purposes and claims of the present invention
Shape belongs within protection of the invention.
Claims (8)
1. a kind of absorbing material, it is characterised in that: including at least one sheet of material, each sheet of material includes three layers of base
Plate, the substrate are respectively from top to bottom first substrate, the second substrate and third substrate, and every laminar substrate includes at least one substrate
The upper surface of unit, each base board unit is attached with man-made microstructure, further includes the gold positioned at the lower surface of the third substrate
Belong to piece；The size for the man-made microstructure adhered in the base board unit size and base board unit of the first substrate is from first substrate
It is gradually become smaller while to opposite other, a man-made microstructure, the people is adhered on each base board unit of first substrate
Making micro-structure is hollow annular structure；It is opening in the man-made microstructure of the upper surface attachment of the base board unit of the second substrate
The both ends of ring structure and split ring curl up to form two helical structures respectively inwards, and the helical structure mutually disjoints；Institute
It states and adheres in the man-made microstructure of upper surface attachment and the base board unit of the second substrate of the base board unit of third substrate
Man-made microstructure is complementary, the opening direction of the split ring of the man-made microstructure on the adjacent base board unit of the second substrate
It is mutually perpendicular to, the man-made microstructure is made of an electrically conducting material.
2. absorbing material according to claim 1, which is characterized in that the hollow annular structure is circular rings.
3. absorbing material according to claim 1, which is characterized in that the hollow annular structure is polygon ring.
4. absorbing material according to claim 1, which is characterized in that the split ring is rectangular aperture ring, the opening
The inward at both ends of ring curls up the helical structure to form that bending angle is right angle.
5. absorbing material according to claim 4, which is characterized in that the split ring is circular open ring, the opening
The inward at both ends of ring curls up rounded helical structure；Or the split ring is elliptical openings ring, the both ends of the split ring
Inwardly curl up oval helical structure.
6. absorbing material according to any one of claims 1 to 5, which is characterized in that the substrate be ceramic material, FR-4,
F4B, polymer matrix composites, ferroelectric material, ferrite material, ferromagnetic material or epoxy glass cloth laminated board.
7. absorbing material according to any one of claims 1 to 5, which is characterized in that the man-made microstructure by silver, copper,
ITO, graphite or carbon nanotube are made.
8. absorbing material according to any one of claims 1 to 5, which is characterized in that the man-made microstructure passes through etching, electricity
It plates, carve, photoetching, electronics is carved or ion quarter is attached on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275383.4A CN103582402B (en) | 2012-08-03 | 2012-08-03 | A kind of absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275383.4A CN103582402B (en) | 2012-08-03 | 2012-08-03 | A kind of absorbing material |
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| Publication Number | Publication Date |
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| CN103582402A CN103582402A (en) | 2014-02-12 |
| CN103582402B true CN103582402B (en) | 2019-01-22 |
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| CN201210275383.4A Active CN103582402B (en) | 2012-08-03 | 2012-08-03 | A kind of absorbing material |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086934A (en) * | 2014-05-06 | 2015-11-25 | 深圳光启创新技术有限公司 | Microwave absorbing composite material and preparation method therefor |
| CN105086855B (en) * | 2014-05-09 | 2018-12-21 | 深圳光启创新技术有限公司 | The adhesive method and flexible absorbing material of silicon rubber and object |
| CN107105609B (en) * | 2017-05-25 | 2019-09-13 | 河北君业科技股份有限公司 | A kind of composite wave-suction material of the movable composition based on graphene |
| JP7325122B2 (en) * | 2018-04-12 | 2023-08-14 | 国立研究開発法人理化学研究所 | Light absorbing element, light absorber, and method for manufacturing light absorbing element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480044A (en) * | 2011-08-31 | 2012-05-30 | 深圳光启高等理工研究院 | Base station antenna |
| CN102593595A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Negative magnetic permeability metamaterial |
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2012
- 2012-08-03 CN CN201210275383.4A patent/CN103582402B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480044A (en) * | 2011-08-31 | 2012-05-30 | 深圳光启高等理工研究院 | Base station antenna |
| CN102593595A (en) * | 2012-02-29 | 2012-07-18 | 深圳光启创新技术有限公司 | Negative magnetic permeability metamaterial |
Non-Patent Citations (1)
| Title |
|---|
| 基于SRR/CRSS结构的超宽带陷波天线的研究;赖寒昱;<万方数据企业知识服务平台>;20120731;第9页最后一段 |
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Effective date of registration: 20210407 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. |
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