CN113067166B - Ultra-thin high temperature resistant broadband wave absorber, wave absorbing plate and part - Google Patents
Ultra-thin high temperature resistant broadband wave absorber, wave absorbing plate and part Download PDFInfo
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- CN113067166B CN113067166B CN202110310665.2A CN202110310665A CN113067166B CN 113067166 B CN113067166 B CN 113067166B CN 202110310665 A CN202110310665 A CN 202110310665A CN 113067166 B CN113067166 B CN 113067166B
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 57
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 102
- 239000000463 material Substances 0.000 claims abstract description 99
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000035699 permeability Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 25
- 238000004088 simulation Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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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
- H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention belongs to the technical field of stealth, and discloses an ultrathin high-temperature-resistant broadband wave absorber, a wave absorbing plate and parts. According to the invention, through holes are formed in the ferrite material plate, so that the surface density of the ferrite material plate can be reduced, and the weight of the ferrite material plate can be reduced. By adopting the copper backboard, the incident electromagnetic wave cannot penetrate, the transmission coefficient is negligibly small, and the copper backboard has good wave absorbing capacity.
Description
Technical Field
The invention belongs to the technical field of stealth, and particularly relates to an ultrathin high-temperature-resistant broadband wave absorber, a wave absorbing plate and parts.
Background
With the high-speed development of stealth technology, complex and changeable application scenes not only require the wave absorber to have low-frequency and ultra-wideband wave absorbing characteristics, but also require the wave absorber to have special physical properties such as high temperature resistance and corrosion resistance. In the aerospace field, components such as an engine tail nozzle, a warhead and a missile wing of a cruise missile and the like all work at a temperature of up to 700 ℃ for a long time, and when the components are in a working state, the components reflect electromagnetic waves more strongly, so that the components are easy to be detected and destroyed by a radar. In order to meet the requirements of high-temperature resistant wave absorption in the application scenes, magnetic wave absorption materials represented by ferrite are generally adopted in the design. However, ferrite materials also have the disadvantage of large areal density and heavy weight, and therefore cannot be directly applied to the aerospace field, such as special parts of aircraft engines and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an ultrathin high-temperature-resistant broadband wave absorber, a wave absorbing plate and parts.
The technical scheme adopted by the invention is as follows:
an ultrathin high-temperature-resistant broadband wave absorber comprises a ferrite material plate and a copper back plate, wherein the copper back plate is arranged on one side surface of the ferrite material plate, and through holes are formed in the ferrite material plate along the thickness direction of the ferrite material plate.
Preferably, the through holes formed in the ferrite material plate comprise circular through holes with different radii.
Preferably, the ferrite material plate is made of an N5 ferrite material.
Preferably, the ferrite material plate is square in shape, and when the side length of the ferrite material plate is p, the radii of different circular through holes formed in the ferrite material plate are r1 and r2 … … ri respectively, and i is a positive integer; the side lengths of the ferrite material plates and the different circular through hole radii r1 and r2 … … ri simultaneously meet the following relations: when the side length of the ferrite material plate is p multiplied by k, the radii of different circular through holes formed in the ferrite material plate are r1 multiplied by k and r2 multiplied by k … … ri multiplied by k respectively, wherein k takes a value of 0.2-1.
Preferably, the ferrite material plate is provided with a first round hole, a second round hole, a 90-degree fan-shaped through hole and a 180-degree fan-shaped through hole, when the side length of the ferrite material plate is 4.41-4.59mm, the radiuses of the first round hole, the 90-degree fan-shaped through hole and the 180-degree fan-shaped through hole are 0.29-0.31mm, the number of the first round holes is four, the radius of the second round hole is 0.38-0.42mm, and the number of the second round holes is four.
Preferably, the four corners of the ferrite material plate are provided with the 90-degree fan-shaped through holes, each side of the ferrite material plate is provided with two 180-degree fan-shaped through holes, the 90-degree fan-shaped through holes and the 180-degree fan-shaped through holes on each side of the ferrite material plate are distributed at equal intervals, and the ferrite material plate is provided with four 360-degree fan-shaped through holes; the central angle corresponding to the 90-degree fan-shaped through hole is 90 degrees, and the central angle corresponding to the 180-degree fan-shaped through hole is 180 degrees.
Preferably, the ferrite material plate has a thickness of 0.98-1.02mm.
Preferably, in the frequency band of 8-18 GHz, the electromagnetic parameters of the N5 ferrite material satisfy the following relationship:
real part of dielectric constant
Imaginary part of dielectric constant
Real part of magnetic permeability
Imaginary part of magnetic permeability
Wherein,fis the frequency.
The invention also provides an ultrathin high-temperature-resistant broadband wave-absorbing plate, which comprises a plurality of ultrathin high-temperature-resistant broadband wave-absorbing bodies, wherein the ultrathin high-temperature-resistant broadband wave-absorbing bodies are connected in a splicing mode.
The invention also provides a part, which comprises a base body and a wave absorbing member arranged on the base body, wherein the wave absorbing member adopts the ultrathin high-temperature-resistant broadband wave absorber disclosed by the invention or the ultrathin high-temperature-resistant broadband wave absorbing plate disclosed by the invention.
The invention has the following beneficial effects:
according to the ultrathin high-temperature-resistant broadband absorber, through the through holes formed in the ferrite material plate, the surface density of the ferrite material plate can be reduced, and the weight of the ferrite material plate can be reduced. By adopting the copper backboard, the incident electromagnetic wave cannot penetrate, the transmission coefficient is negligibly small, and the copper backboard has good wave absorbing capacity.
Furthermore, the ferrite material plates are provided with the circular through holes with different radiuses, and the regulation and control effects of the through holes with different radiuses on the wave absorption frequency bands are different, so that the circular through holes with different radiuses are combined, and the wave absorber can achieve a good wave absorption effect on the whole target frequency band.
Furthermore, when the side length of the ferrite material plate and the size of the opening hole on the ferrite material plate are reduced by 0.2-1 times in equal proportion, the wave absorber can still achieve wave absorbing rate of more than 80 percent.
Further, the invention reasonably designs the structure of the N5 ferrite material, when the side length of the ferrite material plate is 4.41-4.59mm, the radiuses of the first round hole, the 90-degree fan-shaped through hole and the 180-degree fan-shaped through hole are 0.29-0.31mm, the number of the first round holes is four, the radiuses of the second round holes are 0.38-0.42mm, and the number of the second round holes is four, at the moment, compared with the continuous ferrite material with the same thickness and the same size, the average wave absorption rate of the wave absorber on the 8-18 GHz frequency band is improved by 13.49%, the overall weight is reduced by 22.5%, and the wave absorber has the advantages of small size, light weight and good wave absorption effect.
Further, the four corners of the ferrite material plate are provided with 90-degree fan-shaped through holes, each side of the ferrite material plate is provided with two 180-degree fan-shaped through holes, the 90-degree fan-shaped through holes and the 180-degree fan-shaped through holes on each side of the ferrite material plate are distributed at equal intervals, the structure is convenient for assembling a plurality of wave absorber materials, and the 90-degree fan-shaped through holes and the 180-degree fan-shaped through holes on adjacent wave absorbers after assembly can be spliced into complete round holes.
Further, the thickness of the ferrite material plate is 0.98-1.02mm, so that the thickness of the wave absorber is relatively thin and the surface density is relatively small.
Drawings
FIG. 1 is a schematic diagram of an ultra-thin high temperature resistant broadband absorber structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the size and distribution of the through holes on the ultra-thin high temperature resistant broadband absorber according to the embodiment of the present invention;
FIG. 3 is a graph showing the simulation result of reflection coefficient of the ultra-thin high temperature resistant broadband absorber under the normal incidence of TE wave and TM wave;
FIG. 4 is a graph showing simulation results of wave absorption rates of the ultra-thin high temperature resistant broadband wave absorber according to the embodiment of the present invention under normal incidence of TE waves and TM waves;
FIG. 5 is a graph showing simulation results of wave absorption rate of the ultra-thin high temperature resistant broadband wave absorber according to the embodiment of the invention under the TE oblique incidence;
FIG. 6 is a graph showing simulation results of wave absorption rate of the ultra-thin high temperature resistant broadband wave absorber according to the embodiment of the invention under TM oblique incidence;
FIG. 7 is a diagram showing a single-station RCS reduction simulation result of an ultra-thin high temperature resistant broadband absorber according to an embodiment of the present invention;
FIG. 8 is a graph showing the comparison of the simulation results of the wave absorption rate of the ultra-thin high temperature resistant broadband wave absorber and the same-thickness same-size continuous ferrite according to the embodiment of the invention.
In the figure, a 1-ferrite material plate, a 1-1-first round hole, a 1-1-1-90-degree fan-shaped through hole, a 1-1-2-180-degree fan-shaped through hole, a 1-2-second round hole and a 2-copper back plate.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
Referring to fig. 1 and 2, the ultra-thin high temperature resistant broadband absorber of the present invention comprises a ferrite material plate 1 and a copper back plate 2, wherein the copper back plate 2 is arranged on one side surface of the ferrite material plate 1, and the ferrite material plate 1 is provided with a through hole along the thickness direction thereof.
As a preferred embodiment of the present invention, the ferrite material plate 1 is provided with circular through holes having different radii.
In a preferred embodiment of the present invention, the ferrite material plate 1 is made of an N5 ferrite material.
As a preferred embodiment of the invention, the ferrite material plate 1 is square in shape, when the side length of the ferrite material plate 1 is p, the radii of different circular through holes formed in the ferrite material plate 1 are r1 and r2 … … ri respectively, and i is a positive integer; the side length of the ferrite material plate 1, the different circular through hole radii r1, r2 … … ri simultaneously satisfy the following relationship: when the side length of the ferrite material plate 1 is p multiplied by k, different circular through hole radiuses formed in the ferrite material plate 1 are r1 multiplied by k and r2 multiplied by k … … ri multiplied by k respectively, wherein k takes a value of 0.2-1.
As a preferred embodiment of the invention, the ferrite material plate 1 is provided with a first round hole 1-1, a second round hole 1-2, a 90-degree fan-shaped through hole 1-1-1 and a 180-degree fan-shaped through hole 1-1-2, when the side lengths of the ferrite material plate 1, the 90-degree fan-shaped through hole 1-1-1 and the 180-degree fan-shaped through hole 1-1-2 are 4.41-4.59mm, the radius of the first round hole 1-1 is 0.29-0.31mm, the number of the first round holes 1-1 is four, the radius of the second round hole 1-2 is 0.38-0.42mm, and the number of the second round holes 1-2 is four;
the four corners of the ferrite material plate 1 are provided with 90-degree fan-shaped through holes 1-1-1, each side of the ferrite material plate 1 is provided with two 180-degree fan-shaped through holes 1-1-2, and the 90-degree fan-shaped through holes 1-1-1 and the 180-degree fan-shaped through holes 1-1-2 on each side of the ferrite material plate 1 are distributed at equal intervals; the central angle corresponding to the 90-degree fan-shaped through hole 1-1-1 is 90 degrees, and the central angle corresponding to the 180-degree fan-shaped through hole 1-1-2 is 180 degrees.
As a preferred embodiment of the present invention, the ferrite material plate 1 has a thickness of 0.98-1.02mm.
As a preferred embodiment of the invention, the electromagnetic parameters of the N5 ferrite material satisfy the following relationship in a frequency band of 8-18 GHz:
real part of dielectric constant
Imaginary part of dielectric constant
Real part of magnetic permeability
Imaginary part of magnetic permeability
Wherein,fis the frequency.
The invention also provides an ultrathin high-temperature-resistant broadband wave-absorbing plate, which comprises a plurality of ultrathin high-temperature-resistant broadband wave-absorbing bodies, wherein the ultrathin high-temperature-resistant broadband wave-absorbing bodies are connected in a splicing mode.
The invention also provides a part, which comprises a base body and a wave absorbing member arranged on the base body, wherein the wave absorbing member adopts the ultrathin high-temperature-resistant broadband wave absorber disclosed by the invention or the ultrathin high-temperature-resistant broadband wave absorbing plate disclosed by the invention.
Examples
The embodiment aims to provide an ultrathin high-temperature-resistant broadband wave absorber which works in the 8-18 GHz frequency band and is applied to high-temperature components in the aerospace field. The ultrathin high-temperature-resistant broadband wave absorber is loaded with two through hole structures with different radiuses on the basis of ferrite materials, and realizes the regulation and control effect on wave absorbing effects of different frequency bands, wherein a large through hole regulates and controls a higher frequency band, and a small through hole regulates and controls a lower frequency band. The wave-absorbing body is simple in manufacture, compact in structure, small in size and good in wave-absorbing effect, and solves the problem that ferrite materials cannot be directly applied to the aerospace field due to excessive thickness.
As shown in fig. 1 and 2, the ultra-thin high-temperature-resistant broadband wave absorber of the present embodiment adopts copper as a back plate, the part absorbing the lost electromagnetic wave is a ferrite material plate 1 made of N5 ferrite material, a first round hole 1-1, a second round hole 1-2, a 90 ° fan-shaped through hole 1-1-1 and a 180 ° fan-shaped through hole 1-1-2 are formed in the ferrite material plate 1, the first round hole 1-1 and the second round hole 1-2 are through holes, penetrate through the whole ferrite material plate 1 along the thickness direction of the ferrite material plate 1 and stop at the copper back plate 2, the whole wave absorber has a 2-layer structure, namely one layer is the ferrite material plate 1, and the other layer is the copper back plate 2 coated on one side surface of the ferrite material plate 1.
The N5 ferrite material adopted by the invention has the following electromagnetic parameters in the frequency band of 8-18 GHz:
real part of dielectric constant
Imaginary part of dielectric constant
Real part of magnetic permeability
Imaginary part of magnetic permeability
Wherein,ffor frequency
In the embodiment, the shape of the ferrite material plate 1 is square, the thickness of the ferrite material plate 1 is h, and the side length is p; one side of the ferrite material plate 1 is plated with a layer of copper as a back plate, which is p in side length but has a negligible thickness. Two through holes with different sizes, namely a first round hole 1-1 and a second round hole 1-2 are distributed on the ferrite material plate 1, wherein the radius of the first round hole 1-1 is smaller than that of the second round hole 1-2, the radius of the first round hole 1-1 is expressed by r,the distance between the first round holes 1-1 is +.>The method comprises the steps of carrying out a first treatment on the surface of the The radius of the second circular hole 1-2 is denoted R, and (2)>The distance between the second round holes 1-2 is +.>The method comprises the steps of carrying out a first treatment on the surface of the The distance between the second round hole 1-2 and the first round hole 1-1 is +.>. In the present embodiment, 90 ° sector-shaped through holes are distributed at four end points of the ferrite material plate 1, 180 ° sector-shaped through holes are distributed on four sides of the ferrite material plate 1, and the first round holes 1-1 are distributed diagonally +_from the center point>Where it is located. Four second round holes 1-2 are distributed diagonally from the center point +.>Where it is located. The via structure is only present in the ferrite material plate 1 and the back plate of copper-clad is continuous.
Specifically, the parameters of the ultrathin high-temperature-resistant wave absorber in the embodiment are as follows:
TABLE 1
In the embodiment, the first round hole 1-1 and the second round hole 1-2 with different sizes are combined, so that the wave absorber realizes a better wave absorbing effect on the whole target frequency band.
The working frequency band of the wave absorber designed by the embodiment is 8-18 GHz.
FIG. 3 shows simulation results of reflection coefficients of the absorber under normal incidence of TE waves and TM waves, and shows that the reflection coefficients of the absorber in the frequency range of 8-18 GHz are all below-6.5 dB, and polarization insensitivity is achieved.
FIG. 4 is a graph showing simulation results of the absorption rate of the absorber under the normal incidence of TE waves and TM waves, wherein the absorption rate is represented by the formulaAnd (5) calculating to obtain the product. Simulation results show that the wave absorption rate of the wave absorber is basically more than 80% in the frequency range of 8-18 GHz. After the side length, the aperture and the pitch in the embodiment are reduced in equal proportion, the reduced wave absorber can still reach the wave absorbing rate of more than 80%, and the minimum proportion of the reduction is 0.2. And, changing the position and the interval of each through hole has little influence on the wave absorbing effect. If other sizes of non-square shapes are to be formed, the invention can be implemented as a single wave absorbing unit by splicing multiple units.
Fig. 5 shows simulation results of the absorption rate of the absorber under TE oblique incidence, and it can be seen that the absorption rate of the absorber decreases with increasing incidence angle when TE oblique incidence occurs. When the incident angle was 30 °, the absorption at the lowest point of the curve was 74%.
Fig. 6 shows the simulation results of the absorption rate of the absorber under TM oblique incidence, and it can be seen that the absorption rate of the absorber increases with increasing incidence angle when TM oblique incidence occurs. In addition, the wave absorber has certain angle stability within the range of 30 degrees, and the wave absorbing rate does not change greatly along with the change of the incident angle.
Fig. 7 shows simulation results of single-station RCS reduction of the absorber, and the results show that the absorber can realize reduction of single-station RCS of 7dB or more compared with copper plates with equal area in the frequency range of 8-18 GHz, and the reduction amplitude is about 8dB with maximum reduction near 11 GHz.
Fig. 8 shows that the wave absorption rate of the wave absorber is higher than that of pure ferrite in the frequency range of 9-18 ghz as compared with the wave absorption rate simulation result of the continuous ferrite with the same thickness and the same size, and the performance advantage of the wave absorber is more remarkable along with the increase of the frequency. Compared with ferrite, the average wave absorption rate of the wave absorber on the frequency band of 8-18 GHz is improved by about 13.49%, and the overall weight is reduced by about 22.5%.
In this embodiment, two through hole structures with different radii are adopted, and the through hole structures can achieve the aim of reducing weight, but at the same time, the change of the surface impedance of the absorber is caused, so that the radius and the number of the through holes need to be regulated and controlled. Since the effect of impedance matching is improved with the decrease of the radius of the through holes and the increase of the number of through holes, a plurality of small through holes are opened in the ferrite material. And because the through holes with different radiuses have certain difference on the regulation and control effect of the wave absorption frequency band, the through holes with different radiuses are combined, so that the wave absorption rate of the wave absorber on the 8-18 GHz frequency band can meet the requirement.
In summary, the ultra-thin high temperature resistant broadband absorber of the embodiment works in the X-band and Ku-band, and solves the problems of large surface density and heavy weight by loading a multi-size through hole structure on a substrate of ferrite material. Compared with continuous ferrite materials with the same thickness and the same size, the average wave absorption rate of the invention in the 8-18 GHz frequency band is improved by about 13.49%, the overall weight is reduced by about 22.5%, and the invention has the advantages of small size, light weight, good wave absorption effect and the like. Therefore, the invention achieves the purpose of reducing the thickness and the weight of the wave absorber and improving the wave absorbing effect.
Claims (5)
1. The ultra-thin high-temperature-resistant broadband wave absorber is characterized by comprising a ferrite material plate (1) and a copper back plate (2), wherein the copper back plate (2) is arranged on one side surface of the ferrite material plate (1), and the ferrite material plate (1) is provided with a through hole along the thickness direction;
the through holes formed in the ferrite material plate (1) comprise round through holes with different radiuses;
the ferrite material plate (1) is made of N5 ferrite material;
the shape of the ferrite material plate (1) is square, when the side length of the ferrite material plate (1) is p, the radii of different circular through holes formed in the ferrite material plate (1) are r1 and r2 … … ri respectively, and i is a positive integer; the side length of the ferrite material plate (1) and the different circular through hole radii r1, r2 … … ri simultaneously satisfy the following relations: when the side length of the ferrite material plate (1) is p multiplied by k, the radii of different circular through holes formed in the ferrite material plate (1) are r1 multiplied by k and r2 multiplied by k … … ri multiplied by k respectively, wherein the value of k is 0.2-1;
the ferrite material plate (1) is provided with a first round hole (1-1), a second round hole (1-2), a 90-degree fan-shaped through hole (1-1-1) and a 180-degree fan-shaped through hole (1-1-2), when the side length of the ferrite material plate (1) is 4.41-4.59mm, the radiuses of the first round hole (1-1), the 90-degree fan-shaped through hole (1-1-1) and the 180-degree fan-shaped through hole (1-1-2) are 0.29-0.31mm, the number of the first round holes (1-1) is four, the radius of the second round hole (1-2) is 0.38-0.42mm, and the number of the second round holes (1-2) is four;
the four corners of the ferrite material plate (1) are provided with the 90-degree fan-shaped through holes (1-1-1), each side of the ferrite material plate (1) is provided with two 180-degree fan-shaped through holes (1-1-2), and the 90-degree fan-shaped through holes (1-1-1) and the 180-degree fan-shaped through holes (1-1-2) on each side of the ferrite material plate (1) are distributed at equal intervals; the central angle corresponding to the 90-degree fan-shaped through hole (1-1-1) is 90 degrees, and the central angle corresponding to the 180-degree fan-shaped through hole (1-1-2) is 180 degrees.
2. The ultra-thin high temperature resistant broadband absorber according to claim 1, wherein the thickness of the ferrite material plate (1) is 0.98-1.02mm.
3. The ultra-thin high temperature resistant broadband absorber according to claim 1, wherein the electromagnetic parameters of the N5 ferrite material satisfy the following relationship in a frequency band of 8-18 ghz:
real part of dielectric constant
Imaginary part of dielectric constant
Real part of magnetic permeability
Imaginary part of magnetic permeability
Wherein,fis the frequency.
4. An ultrathin high-temperature-resistant broadband wave-absorbing plate is characterized by comprising a plurality of ultrathin high-temperature-resistant broadband wave-absorbing bodies according to any one of claims 1-3, wherein the plurality of ultrathin high-temperature-resistant broadband wave-absorbing bodies are connected in a splicing manner.
5. A part, which is characterized by comprising a base body and a wave absorbing member arranged on the base body, wherein the wave absorbing member adopts the ultra-thin high-temperature-resistant broadband wave absorber according to any one of claims 1-3 or the ultra-thin high-temperature-resistant broadband wave absorbing plate according to claim 4.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005244043A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Gas Chem Co Inc | Radio wave absorber |
| JP2007095830A (en) * | 2005-09-27 | 2007-04-12 | Nitta Ind Corp | Electromagnetic wave absorber |
| CN102770009A (en) * | 2011-05-04 | 2012-11-07 | 深圳光启高等理工研究院 | Wave-absorbing metamaterial |
| CN102904048A (en) * | 2011-07-29 | 2013-01-30 | 深圳光启高等理工研究院 | Base station antenna |
| US8643532B1 (en) * | 2005-12-12 | 2014-02-04 | Nomadics, Inc. | Thin film emitter-absorber apparatus and methods |
| CN103579776A (en) * | 2013-10-31 | 2014-02-12 | 电子科技大学 | Electromagnetic wave-absorbing material with improved oblique incidence performance |
| CN106129563A (en) * | 2016-07-08 | 2016-11-16 | 中国人民解放军空军工程大学 | A kind of based on WAVEGUIDE LOADED ferritic adjustable microwave isolator |
| CN110416742A (en) * | 2019-07-26 | 2019-11-05 | 中国人民解放军军事科学院国防科技创新研究院 | A kind of design of frivolous broadband absorbing Meta Materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006035912A1 (en) * | 2004-09-29 | 2006-04-06 | Nitta Corporation | Electromagnetic wave absorber |
| JP2009094502A (en) * | 2007-09-20 | 2009-04-30 | Nitto Denko Corp | Electromagnetic wave absorber and electromagnetic wave absorbing method |
| CN102903397B (en) * | 2011-07-29 | 2015-07-22 | 深圳光启高等理工研究院 | Artificial broadband absorbing electromagnetic material |
-
2021
- 2021-03-23 CN CN202110310665.2A patent/CN113067166B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005244043A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Gas Chem Co Inc | Radio wave absorber |
| JP2007095830A (en) * | 2005-09-27 | 2007-04-12 | Nitta Ind Corp | Electromagnetic wave absorber |
| US8643532B1 (en) * | 2005-12-12 | 2014-02-04 | Nomadics, Inc. | Thin film emitter-absorber apparatus and methods |
| CN102770009A (en) * | 2011-05-04 | 2012-11-07 | 深圳光启高等理工研究院 | Wave-absorbing metamaterial |
| CN102904048A (en) * | 2011-07-29 | 2013-01-30 | 深圳光启高等理工研究院 | Base station antenna |
| CN103579776A (en) * | 2013-10-31 | 2014-02-12 | 电子科技大学 | Electromagnetic wave-absorbing material with improved oblique incidence performance |
| CN106129563A (en) * | 2016-07-08 | 2016-11-16 | 中国人民解放军空军工程大学 | A kind of based on WAVEGUIDE LOADED ferritic adjustable microwave isolator |
| CN110416742A (en) * | 2019-07-26 | 2019-11-05 | 中国人民解放军军事科学院国防科技创新研究院 | A kind of design of frivolous broadband absorbing Meta Materials |
Non-Patent Citations (4)
| Title |
|---|
| An Integrated Switchable EM Absorber and Beam Switchable Radiator;SAEED UR RAHMAN et al.;《IEEE Access》;20201021;全文 * |
| 一种具有吸波和相位相消特性的共享 孔径雷达吸波材料;李文强等;《物理学报》;20141231;第63卷(第12期);全文 * |
| 基于超材料与磁性材料的P 波段吸波体的设计;杨婧娴等;《2017年全国天线年会论文集（上册）》;20171016;全文 * |
| 基于超材料设计的羰基铁低频复合吸波涂层研究;李 泽等;《稀有金属材料与工程》;20191130;第48卷(第11期);全文 * |
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