CN113972499A - Three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami - Google Patents
Three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami Download PDFInfo
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- CN113972499A CN113972499A CN202111256274.3A CN202111256274A CN113972499A CN 113972499 A CN113972499 A CN 113972499A CN 202111256274 A CN202111256274 A CN 202111256274A CN 113972499 A CN113972499 A CN 113972499A
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- 239000011358 absorbing material Substances 0.000 title claims abstract description 60
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 229920007790 polymethacrylimide foam Polymers 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract 1
- 230000008859 change Effects 0.000 description 8
- 238000004088 simulation Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/002—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices being reconfigurable or tunable, e.g. using switches or diodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/007—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with means for controlling the absorption
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention belongs to the technical field of stealth materials, and particularly relates to a three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami. The electromagnetic wave shielding device comprises a paper folding structure, a substrate layer and a metal back plate which are sequentially arranged along the electromagnetic propagation direction, wherein the paper folding structure comprises a reconfigurable substrate and metamaterial structure units printed on the reconfigurable substrate. The invention realizes dynamic adjustment of the wave-absorbing material and realizes ultra-wideband absorption of TM waves by optimizing the structural design. Meanwhile, the reconfigurable wave-absorbing material has good oblique incidence performance and a wide angular domain. With the continuous development of micro-manufacturing technologies such as shape memory alloy, 4D printing, self-folding origami and the like, the reconfigurable device has wider application space in manufacturing.
Description
Technical Field
The invention belongs to the technical field of stealth materials, and particularly relates to a three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami.
Background
Under the background of informatization war, the electromagnetic wave-absorbing material is one of effective ways for realizing stealth technology, and has become the key point of controversy research of various countries. Meanwhile, the method has wide application prospect in the fields of wireless communication, electromagnetic shielding, electromagnetic compatibility and the like. In order to realize efficient electromagnetic wave-absorbing characteristics, the traditional wave-absorbing material deeply researches the physical and chemical characteristics and the preparation process of each component of the material, and prepares a series of wave-absorbing materials with the characteristics of conductive loss, dielectric loss and magnetic loss. However, as the research on the performance characterization of the traditional wave-absorbing material is deepened, the excavated space of the wave-absorbing performance is smaller and smaller. The introduction and development of the metamaterial structure design bring a brand new revolution for improving the comprehensive performance of the electromagnetic wave-absorbing material. Compared with the traditional wave-absorbing material, the wave-absorbing metamaterial has the greatest advantage of designability of macroscopic performance, namely the wave-absorbing performance of the whole material is not determined by the electromagnetic loss characteristics of the materials, and the periodic unit structure and the arrangement mode of the wave-absorbing metamaterial can directly influence the wave-absorbing performance of the whole material.
The perfect wave-absorbing material designed based on the wave-absorbing metamaterial is a device capable of effectively absorbing electromagnetic waves with working wavelengths, can be applied to a defense system and daily life of people, and provides great convenience for the life of people. The metamaterial perfect wave-absorbing material generally adopts a classical three-layer structure, the top layer is a periodic metal structure, the middle layer is a dielectric medium or insulator material with a certain thickness, and the bottom layer is a continuous metal film with the thickness far larger than the skin depth of electromagnetic waves in metal, so that the metamaterial perfect wave-absorbing material can play a role in blocking the transmission of the electromagnetic waves. By reasonably optimizing the structural parameters, the change of the working wavelength of the device and the adjustment of the absorption parameters can be realized. The excellent characteristics can lead the metamaterial perfect wave-absorbing material to be well applied and developed in the fields of biosensors, filters, solar photovoltaic, photoelectric detection and the like. From the electromagnetic wave absorption frequency band, the perfect wave absorbing material can be divided into narrow-band absorption and wide-band absorption, and in addition, various electromagnetic wave absorption modes such as single frequency band, double frequency band and multi-frequency band are available. From the polarization sensitive condition, the wave absorbing materials can be divided into incidence angle polarization sensitive and incidence angle polarization insensitive wave absorbing materials.
However, the wave-absorbing materials are two-dimensional metamaterials, and although the wave-absorbing materials have the characteristics of small thickness and integration, once the structure is designed, the change of the structure of the wave-absorbing materials has certain challenges. In addition, while the general metamaterial wave-absorbing material keeps broadband absorption, the maximum incident angle is 30-60 degrees, and the performance of the wave-absorbing material gradually deteriorates along with the increase of the incident angle, so that the metamaterial wave-absorbing material has great limitation in practical application.
Disclosure of Invention
In order to solve the technical problems, the invention provides a three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami.
In order to achieve the purpose, the invention adopts the following technical scheme:
a three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami comprises a reconfigurable metamaterial, a substrate layer and a metal back plate, wherein the reconfigurable metamaterial, the substrate layer and the metal back plate are sequentially arranged along an electromagnetic propagation direction, and the origami structure comprises a reconfigurable substrate and a metamaterial structure unit printed on the reconfigurable substrate.
Further, the reconfigurable substrate is a polyimide substrate with the thickness of 0.05 mm.
Further, the metamaterial structure unit is a resistive film.
Further, the resistive film is cross-shaped.
Further, the square resistance of the resistance film is 100 omega/sq.
Further, the substrate layer is a PMI foam substrate with the thickness of 2 mm.
Further, the thickness of the metal back plate is 0.017 mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention realizes dynamic adjustment of the wave-absorbing material, and the wave-absorbing material keeps high-efficiency wave-absorbing performance in a certain expansion range (changing folding angle). When the folding angle is 55 degrees, the absorption rate of the wave-absorbing material to TM waves is kept above 90% in the frequency range of 1.48-40.00 GHz.
(2) The invention realizes that the wave-absorbing material can still realize broadband absorption under a larger incident angle, and when the incident angle of TM wave is 70 degrees (the folding angle is fixed to be 55 degrees), the wave-absorbing material can still be in the frequency range of 5.91-40.00GHz, and the absorption rate is kept above 90%.
(3) The invention realizes the high-efficiency absorption of the wave-absorbing material to the electromagnetic wave under the condition of TM oblique incidence, and the absorption efficiency is increased and then reduced along with the increase of the oblique incidence angle. When the oblique incidence angle of TM wave is 50 degrees, the absorption rate of the wave-absorbing material to electromagnetic wave in the working frequency band almost reaches 100%.
(4) In the design process, the wave-absorbing material is effectively reduced in relative density in the folding process, and the relative density of the wave-absorbing material is further reduced along with the increase of the vertex angle alpha. The light weight and the reconfigurability of the wave-absorbing material make the design have greater value in practical application.
(5) The resistive film metamaterial structure unit printing and the polyimide substrate adopted by the invention have very mature processing technologies at present, and are simple to prepare and low in processing cost. The polyimide-based plates were 0.05mm thick, as did the PMI foams, and were all lightweight materials.
Drawings
FIG. 1 is a schematic structural diagram of a three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami.
Fig. 2 is a schematic plane development of the paper folding structure.
Fig. 3 is a schematic view of various angles of the paper folding structure.
FIG. 4 is a simulation curve of the absorption rate of the wave-absorbing material to electromagnetic waves along with the change of the folding angle of the paper folding structure under the incidence of TM waves;
FIG. 5 is a simulation curve of the absorption rate of the wave-absorbing material to electromagnetic waves along with the change of the folding angle of the paper folding structure under the incidence of TE waves;
fig. 6 is a simulation curve of the absorption rate of the wave-absorbing material to electromagnetic waves with the change of the incident angle of TM incident waves under the condition that the folded paper structure maintains the folding angle of 55 °.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments, but the invention should not be construed as being limited thereto. The technical means used in the following examples are conventional means well known to those skilled in the art, and materials, reagents and the like used in the following examples can be commercially available unless otherwise specified.
A three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material (hereinafter or simply referred to as wave-absorbing material) based on three-pump folded paper comprises a folded paper structure, a substrate layer and a metal back plate which are sequentially arranged along an electromagnetic propagation direction, wherein the folded paper structure comprises a reconfigurable substrate and a metamaterial structure unit printed on the reconfigurable substrate.
In this embodiment, the reconfigurable substrate is a polyimide substrate with a thickness of 0.05mm, the material structure unit is a font resistive film, the sheet resistance of the resistive film is 100 Ω/sq, the substrate layer is a PMI foam substrate with a thickness of 2mm, and the thickness of the metal back plate is 0.017 mm.
The properties of the wave-absorbing material prepared by the method are further described by detecting the wave-absorbing material.
Fig. 2 is a schematic plan view of the paper folding structure, two rectangles with length and width of b 22.5mm, a 12mm, d 37.5mm and c 7.5mm respectively form a cross-shaped resistive film, the parallelogram vertex angle is α 60 ° and the parallelogram side length is l 30 mm. The resistive film structure is printed onto the surface of the paper-folding structure as it is laid out in a plane.
FIG. 3 is a schematic diagram of the angles of the three-pump paper folding structure, wherein the following is the relationship between the angles:
sinβ＝sinθ*sinα， (1)
sinγ＝cosα*sinβ， (2)
and (4) calculating the numerical value of each angle according to the known conditions by using the relational expression of each angle, and realizing the simulation of the reconfigurable wave-absorbing material in simulation software.
Fig. 4 and 5 are simulation curves of absorption rate of the wave-absorbing material to electromagnetic waves along with the change of folding angles of the paper folding structure under the incidence of TE waves and TM waves, respectively. With the change of the folding angle of the paper folding structure, after the unit structures are periodically arranged, the unit structures are equivalent to form an obliquely arranged Salisbury screen in a three-dimensional space, which is the reason that the reconfigurable wave-absorbing material has the characteristic of wide angle range. Every two cross-shaped resistive film structures in the y direction are parallel and are relatively close to each other, so that the absorbing material has relatively good absorption performance on TM waves; in the x direction, every two cross-shaped resistive film structures are also parallel but far away from each other, so that the absorption efficiency of the wave-absorbing material on the TE wave is poor.
Fig. 6 is a simulation curve of the absorption rate of the wave-absorbing material to electromagnetic waves along with the change of the incident angle of TM incident waves under the condition that the folding angle of the wave-absorbing material is kept at 55 ° in the paper folding structure. As mentioned above, since the resistive film structure is tilted in a three-dimensional space, the reconfigurable wave-absorbing material has a better oblique incidence performance, that is, a wider angular range.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pump origami is characterized by comprising an origami structure, a substrate layer and a metal back plate which are sequentially arranged along the electromagnetic propagation direction and sequentially stacked together, wherein the origami structure comprises a reconfigurable substrate and a metamaterial structure unit printed on the reconfigurable substrate.
2. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pump origami as claimed in claim 1, wherein the reconfigurable substrate is a polyimide substrate with a thickness of 0.05 mm.
3. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pump origami as claimed in claim 1, wherein the metamaterial structure elements are resistive films.
4. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pump origami as claimed in claim 3, wherein the resistive film is cross-shaped.
5. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pump origami as claimed in claim 4, wherein the square resistance of the resistive film is 100 Ω/sq.
6. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami as claimed in claim 1, wherein the substrate layer is a PMI foam substrate with a thickness of 2 mm.
7. The three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on the three-pu origami paper as claimed in claim 1, wherein the thickness of the metal back plate is 0.017 mm.
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| CN202111256274.3A CN113972499A (en) | 2021-10-27 | 2021-10-27 | Three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami |
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| CN202111256274.3A CN113972499A (en) | 2021-10-27 | 2021-10-27 | Three-dimensional reconfigurable wide-bandwidth angular-domain wave-absorbing material based on three-pump origami |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342159A (en) * | 2022-10-20 | 2022-11-15 | 哈尔滨工业大学 | Suspension damping system based on paper folding composite metamaterial |
| CN116419558A (en) * | 2023-06-09 | 2023-07-11 | 南京振微新材料科技有限公司 | Paper folding structure with switchable 5GHz communication state |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244630A (en) * | 2015-10-13 | 2016-01-13 | 中国人民解放军空军工程大学 | Novel three-dimensional broadband super-light wave-absorbing material and designing method thereof |
| CN113354861A (en) * | 2021-05-25 | 2021-09-07 | 同济大学 | Universal method for preparing functional nano material/cellulose composite aerogel by using paper folding principle |
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2021
- 2021-10-27 CN CN202111256274.3A patent/CN113972499A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244630A (en) * | 2015-10-13 | 2016-01-13 | 中国人民解放军空军工程大学 | Novel three-dimensional broadband super-light wave-absorbing material and designing method thereof |
| CN113354861A (en) * | 2021-05-25 | 2021-09-07 | 同济大学 | Universal method for preparing functional nano material/cellulose composite aerogel by using paper folding principle |
Non-Patent Citations (2)
| Title |
|---|
| MIN LI: "rigami Metawall: Mechanically Controlled Absorption and Deflection of Light", pages 1 * |
| 张国瑞: "宽带周期吸波结构设计及其电磁耦合特性研究", 《中国博士学位论文全文数据库》, pages 1 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342159A (en) * | 2022-10-20 | 2022-11-15 | 哈尔滨工业大学 | Suspension damping system based on paper folding composite metamaterial |
| CN115342159B (en) * | 2022-10-20 | 2023-01-31 | 哈尔滨工业大学 | Suspension damping system based on folded paper composite metamaterial |
| CN116419558A (en) * | 2023-06-09 | 2023-07-11 | 南京振微新材料科技有限公司 | Paper folding structure with switchable 5GHz communication state |
| CN116419558B (en) * | 2023-06-09 | 2023-08-15 | 南京振微新材料科技有限公司 | Paper folding structure with switchable 5GHz communication state |
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