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Absorbing/scattering-integrated stealth metamaterial

A metamaterial and substrate technology, applied in electrical components, antennas, etc., can solve the problem of not realizing the comprehensive regulation of electromagnetic wave absorption and scattering, and achieve the effect of high efficiency reduction, low processing cost and high value

Active Publication Date: 2019-10-15
AIR FORCE UNIV PLA
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Problems solved by technology

[0004] However, the above two designs for regulating electromagnetic waves by metamaterials mainly absorb electromagnetic waves unilaterally or control the propagation direction of reflected waves, and do not realize the comprehensive control of electromagnetic wave absorption and scattering.

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  • Absorbing/scattering-integrated stealth metamaterial
  • Absorbing/scattering-integrated stealth metamaterial
  • Absorbing/scattering-integrated stealth metamaterial

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand that the technical solutions of the present invention can be implemented, the present invention will be further described below in conjunction with specific examples and accompanying drawings, but the given examples are not intended to limit the present invention.

[0029] A absorbing / scattering integrated stealth metamaterial, such as figure 1 and figure 2 As shown in a, it includes a second metamaterial layer 2, a third substrate 3 (a PMI foam substrate with a thickness of 1 to 3 mm, 2 mm here), a first metamaterial layer 1, and a third substrate 3 arranged in sequence along the direction of electromagnetic propagation. The fourth substrate 4 (the PMI foam substrate with a thickness of 1 to 3mm can be used, here is 2mm) and the metal plate bottom layer 5 (a metal plate with a thickness of 0.017mm); the first metamaterial layer 1 includes the first substrate (FR4 substrate with a thickness of 0.1 mm), a...

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Abstract

The invention discloses an absorbing / scattering-integrated stealth metamaterial, which belongs to the technical field of stealth materials. The absorbing / scattering-integrated stealth metamaterial comprises a second metamaterial layer, a third substrate, a first metamaterial layer, a fourth substrate and a metal plate bottom layer sequentially arranged along an electromagnetic propagation direction, wherein the first metamaterial layer comprises a first substrate, an artificial microstructure arranged on the first substrate, and a first absorbing metamaterial printed on the first substrate; the second metamaterial layer comprises a second substrate and a second absorbing metamaterial printed on the second substrate; and positions of a second artificial microstructure unit and the first artificial microstructure unit are corresponding. Comprehensive control on absorbing and scattering can be realized, and through optimizing the structural design, the absorbing metamaterial and the supersurface can be effectively combined, and the frequency bands of the two are expanded; and due to the ultra-wideband, efficient reduction, lightweight and ultra-thin characteristics, the absorbing / scattering-integrated stealth metamaterial has higher value in practical application.

Description

technical field [0001] The invention belongs to the technical field of stealth materials, and in particular relates to a wave-absorbing / scattering integrated stealth metamaterial. Background technique [0002] With the continuous development and application of radar detection technology, electromagnetic stealth technology for radar detection is becoming more and more important. At present, relatively mature radar stealth technologies mainly include appearance stealth and radar absorbing material coating stealth. Shape stealth means deflecting incident radar waves to non-threatening directions through reasonable shape design, but changes in the external shape will affect the aerodynamic performance of the aircraft. The stealth technology based on the coating of radar absorbing materials is to lose the radar waves emitted by the detection radar in the form of heat energy, but this technology requires a high thickness of the material, resulting in a heavy thickness. Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00H01Q15/00
CPCH01Q15/0086H01Q17/007
Inventor 李勇峰屈绍波荆垚朱志标王甲富王军张介秋
Owner AIR FORCE UNIV PLA
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