Adaptive passive stealth method based on electromagnetic wave waveguide and micro-nano-structure

A micro-nano structure, passive stealth technology, applied in the field of functional stealth, can solve the problems of complex stealth design structure, increase manufacturing difficulty, difficult miniaturization, etc., achieve fast adaptive passive stealth, uncomplicated system design, and avoid noise interference Effect

Active Publication Date: 2015-09-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will lead to a complex structure of the stealth design, difficulty in miniaturization, high po...

Method used

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  • Adaptive passive stealth method based on electromagnetic wave waveguide and micro-nano-structure
  • Adaptive passive stealth method based on electromagnetic wave waveguide and micro-nano-structure
  • Adaptive passive stealth method based on electromagnetic wave waveguide and micro-nano-structure

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Embodiment 1

[0025] For the black box-shaped object, an adaptive passive stealth design based on waveguides and functional micro-nano structures is adopted. For the electromagnetic wave coupling unit, epoxy resin with high transmittance in the visible light range is used as the matrix material, and silica nanoparticles are doped in it, and its size and shape are as follows: figure 1 As shown, the optical coating was prepared on the bottom of the black box by injection molding, and a high-scattering astigmatism film was placed at the interface between the optical coating and the black box to facilitate the coupling of background light into the coating. For the electromagnetic wave transmission unit, use an epoxy resin that matches the coupling unit and has high light transmittance, prepare a waveguide coating at the position where the coupling unit connects and the side of the black box, and prepare a waveguide coating at the corner of the bottom and side of the black box and At the corner ...

Embodiment 2

[0028] For black box-like objects, an adaptive passive stealth design based on waveguides and functional micro-nano structures is adopted, such as image 3 shown. In order to achieve stealth in the visible light range, polymethyl methacrylate with high light transmittance is used as the main material in the electromagnetic wave coupling unit, and a coating is formed on the bottom of the target object by spraying, and the interface between the coating and the target object Set the reflective film to increase the efficiency of background light coupling into the coating; the electromagnetic wave transmission unit is connected to the coupling unit. In order to reduce the light loss at the interface, the material of the transmission unit is polymethyl methacrylate. The surface of the object is prepared with a waveguide coating. In order to flexibly change the transmission direction of the light wave in the waveguide coating, by adjusting the geometric structure of the waveguide co...

Embodiment 3

[0030]For a target object with an irregular surface, an adaptive passive stealth design based on waveguides and functional micro-nano structures is adopted. The electromagnetic wave coupling unit uses borosilicate quartz glass as the base material, prepares a coating on the bottom of the target object, and dopes gallium nitride quantum dots in it to absorb the ultraviolet-visible light reflected by the background, and excites it to match the background light. electromagnetic waves to increase the efficiency of background light coupling into the coating. The waveguide coating is prepared by using quartz glass that matches the coating of the coupling unit and has high light transmittance, which is connected to the coupling unit and coated on the surface of the target object. In this way, the background light received by the coupling unit can enter the waveguide coating with low loss, and when transmitted in the waveguide coating, it satisfies total internal reflection, so the tr...

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Abstract

The invention discloses an adaptive passive stealth method based on electromagnetic wave waveguide and a micro-nano-structure. The adaptive passive stealth method comprises steps of obtaining electromagnetic wave emitted by a target object background through a electromagnetic wave coupling unit, transmitting background electromagnetic wave to all parts of the target object through an electromagnetic wave transmission unit, and uniformly scattering the electromagnetic waves which are transmitted to all parts of the target object through an electromagnetic wave emission unit. As a result, the electromagnetic waves emitted by the object and the background are matched, which achieves the adaptive passive stealth of the target object. The adaptive passive stealth method based on the electromagnetic wave waveguide and the micro-nano-structure realizes the facts that the target object can be quickly and passively hidden according to the environment change and can be hidden in a wind range wave band which comprises the UV-visible light-infrared light wave band or even the microwave wave band. The noise interference in the active stealth technology can be avoided, the electromagnetic wave emitted by the object is similar to the electromagnetic wave by the environment, and the application range is wide.

Description

technical field [0001] The invention belongs to the functional stealth technology, in particular to an adaptive passive stealth method based on electromagnetic wave guides and micro-nano structures. Background technique [0002] Stealth has a broad application space in military camouflage, product appearance and other fields. On the future battlefield, if soldiers, combat equipment and other military targets can quickly change the electromagnetic waves emitted by themselves according to different environmental backgrounds to achieve stealth, the chances of being detected and attacked can be greatly reduced; The appearance also puts forward higher requirements: if the electromagnetic waves emitted by the product match the surrounding environment, it will not destroy the unity and integrity of the environment and the product, but also increase the interest of the product and enhance the market competitiveness of the product. Therefore, the research and development of stealth ...

Claims

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Application Information

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IPC IPC(8): G01S7/495
CPCG01S7/495
Inventor 何家庆尚文姜逸越宋成轶陶鹏邬剑波邓涛
Owner SHANGHAI JIAO TONG UNIV
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