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A light-permeable structural broadband absorbing material with water as loss medium

A wave-absorbing material and structural technology, applied in the field of wave-absorbing materials, can solve the problems of difficulty and high cost of the transparent conductive film process, and achieve the effects of simple and mature preparation process, reduced infrared radiation, and easy acquisition

Inactive Publication Date: 2020-11-13
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the process difficulty and cost of large-scale preparation of transparent conductive films with such periodic structures are still relatively large.

Method used

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  • A light-permeable structural broadband absorbing material with water as loss medium
  • A light-permeable structural broadband absorbing material with water as loss medium
  • A light-permeable structural broadband absorbing material with water as loss medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A light-transmitting structural broadband wave-absorbing material with water as the loss medium, the structure-type wave-absorbing material includes a loss medium loading device 2 and a bottom backplane 3, and the loss medium carrying device 2 and the bottom backplane 3 Adhesives are used to form a closed structure along the surrounding edges, and the closed structure is filled with deionized water. The bottom of the loss medium loading device 2 is provided with two through holes 4 for injecting and discharging deionized water. The two through holes 4 are arranged diagonally along the lossy medium bearing device 2, which is convenient for later injection and discharge of liquid.

[0023] The surface of the lossy medium loading device 2 close to the bottom back plate 3 is provided with an indentation, and the indentation is filled with deionized water, and the deionized water used works at room temperature (25° C.) and a standard atmospheric pressure.

[0024] The depth ...

Embodiment 2

[0031] Such as Figure 1-3 As shown, a light-transmitting structural broadband absorbing material with water as the loss medium includes a loss medium loading device 2 and a bottom backplane 3, and the loss medium loading device 2 and the bottom backplane 3 are used along the surrounding edges. Adhesive bonding forms a closed structure, the closed structure is filled with deionized water, the bottom of the loss medium loading device 2 is provided with two through holes 4 for injecting and discharging deionized water, and the two through holes The holes 4 are arranged along the diagonal of the lossy medium bearing device 2, which is convenient for later injection and discharge of liquid.

[0032] The lower surface of the loss medium loading device 2 is provided with a concave, and the top of the concave is opened with a plurality of cylindrical grooves 1, and the cylindrical grooves 1 are distributed in a periodic array, and the deionized water is filled with the concave and cy...

Embodiment 3

[0036] The difference between embodiment 3 and the absorbing material of embodiment 2 is that each structural parameter is as follows: P=10mm, r=9mm, h 1 = 2 mm, h 2 = 2 mm, h 3 = 2.5 mm.

[0037] The lossy medium loading device 2 is made of quartz glass, and the square resistance of the bottom backplane 3 ITO conductive film is 20.0Ω / sq.

[0038] The method for preparing the light-transmitting structural broadband absorbing material in Example 3 using water as the loss medium is the same as that in Example 1.

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Abstract

The invention discloses a light transmitting structured broadband wave absorbing material with water acting as the loss medium, and belongs to the technical field of the wave absorbing material. The structured broadband wave absorbing material comprises a loss medium loading device and a bottom backboard. The loss medium loading device and the bottom backboard form an enclosed structure. The lossmedium loading device is filled with the loss medium. The loss medium loading device is made of transparent material. The loss medium is the deionized water. The bottom backboard is the ITO conductivefilm backboard. The bottom part of the loss medium loading device is also provided with two through holes used for injecting and draining the deionized water. The deionized water is used as the lossmedium so that the wave absorbing bandwidth can be obviously extended without increasing thickness. The selected component material has the characteristic of high light transmittance in the visible light band so that the formed wave absorbing material is enabled to have the characteristic of high light transmittance.

Description

technical field [0001] The invention belongs to the technical field of wave-absorbing materials, and in particular relates to a light-permeable structural broadband wave-absorbing material with water as a loss medium. Background technique [0002] In the information warfare of the new century, stealth technology has a profound impact on the survivability and combat effectiveness of weapons and equipment. In view of the current rapid development of high-precision, multi-band and multi-base radar detection systems, the use of wave-absorbing materials on weapons and equipment can effectively reduce the radar detection accuracy, thereby improving the survivability and penetration capabilities of weapons and equipment. At the same time, with the rapid development of modern electronic information technology, the accompanying electromagnetic radiation is almost everywhere, and electromagnetic "pollution" problems such as electromagnetic interference and electromagnetic compatibilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q17/00
CPCH01Q17/00
Inventor 庞永强屈绍波张介秋王甲富李勇峰王军杜红亮
Owner AIR FORCE UNIV PLA
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