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A wave-absorbing and wave-transmitting integrated metamaterial radome and its application

A technology of metamaterials and radome, applied in the field of metamaterials, can solve the problem of losing stealth ability and achieve obvious effects of wave absorption and wave transmission

Active Publication Date: 2020-07-03
AEROSPACE SCI & IND WUHAN MAGNETISM ELECTRON +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

FSS stealth radome is in danger of losing its stealth ability in the face of these anti-stealth technologies

Method used

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  • A wave-absorbing and wave-transmitting integrated metamaterial radome and its application
  • A wave-absorbing and wave-transmitting integrated metamaterial radome and its application
  • A wave-absorbing and wave-transmitting integrated metamaterial radome and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Please also refer to figure 1 and figure 2 , this embodiment provides an integrated metamaterial radome for absorbing and transmitting waves, which includes a dielectric structure layer 100 , a wave-absorbing sandwich layer 200 and a frequency-selective surface layer 300 .

[0066] The dielectric structure layer 100 includes a first dielectric substrate 101 and a second dielectric substrate 102, the first dielectric substrate 101 is arranged on one side of the wave-absorbing sandwich layer 200, and the frequency selective surface layer 300 is arranged on the side of the wave-absorbing sandwich layer 200 away from the second One side of the dielectric substrate 101 , the second dielectric substrate 102 is disposed on the side of the frequency selective surface layer 300 away from the absorbing core layer 200 .

[0067] The wave-absorbing sandwich layer 200 includes a first wave-absorbing sandwich layer 201 and a second wave-absorbing sandwich layer 202 . The first abs...

Embodiment 2

[0076] The difference between this embodiment and Embodiment 1 lies in that the thicknesses of the first dielectric substrate and the second dielectric substrate are both 3 mm. Both the first dielectric substrate and the second dielectric substrate are made of epoxy resin and glass fiber.

[0077] Both the first wave-absorbing sandwich layer and the second wave-absorbing sandwich layer are composed of wave-absorbing honeycombs, and the thicknesses of the first wave-absorbing sandwich layer and the second wave-absorbing sandwich layer are both 20mm.

[0078] The side lengths of the hollow regular hexagonal metals of the first metal layer and the second metal layer are both 2 mm, and the widths of the hollow regular hexagonal metals of the first metal layer and the second metal layer are both 0.2 mm. The metals in the first metal layer and the second metal layer are both copper.

[0079] The third dielectric substrate is made of aramid paper honeycomb, and the thickness of the ...

Embodiment 3

[0081] The difference between this embodiment and Embodiment 1 is that the thicknesses of the first dielectric substrate and the second dielectric substrate are both 2 mm. Both the first dielectric substrate and the second dielectric substrate are made of vinyl ester resin, cyanate resin, quartz fiber and kevlar fiber.

[0082] Both the first wave-absorbing sandwich layer and the second wave-absorbing sandwich layer are composed of wave-absorbing foam, and the thicknesses of the first wave-absorbing sandwich layer and the second wave-absorbing sandwich layer are both 15mm.

[0083] The side lengths of the hollow regular hexagonal metals of the first metal layer and the second metal layer are both 3 mm, and the widths of the hollow regular hexagonal metals of the first metal layer and the second metal layer are both 0.4 mm.

[0084] The third dielectric substrate is made of PMI foam, and the thickness of the third dielectric substrate is 10 mm.

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Abstract

The invention relates to a wave absorbing and transmitting integrated metamaterial radome and application thereof, belonging to the field of metamaterials. The radome comprises a dielectric structurelayer, a wave absorbing sandwich layer and a frequency selecting surface layer. The dielectric structure layer comprises first and second dielectric substrates, the first dielectric substrate is arranged on one side of the wave absorbing sandwich layer, the frequency selecting surface layer is arranged on the side of the wave absorbing sandwich layer away from the first dielectric substrate, and the second dielectric substrate is arranged on the side of the frequency selecting surface layer away from the wave absorbing sandwich layer. The radome is provided with a dielectric structure layer, awave absorbing sandwich layer and a frequency selecting surface layer, so that waves can be transmitted in the operating frequency band of the radome; at the same time, the frequency selecting surface reflects the out-of-band electromagnetic waves as a reflecting layer of the wave absorbing sandwich layer to achieve the purpose of absorbing waves, thereby realizing the stealth of a system using atransmitter and a receiver, such as a dual- (multi-) base station radar or space-based radar system. When the radome is used in optical imaging or miniaturized antennas or electromagnetic wave stealth, the wave absorbing and transmitting effect is obvious.

Description

technical field [0001] The invention relates to the field of metamaterials, and in particular to a wave-absorbing and wave-transmitting integrated metamaterial radome and its application. Background technique [0002] Metamaterial is a kind of artificial electromagnetic functional material, and its basic unit is a mesoscopic microstructure between macroscopic and microscopic. Metamaterials represented by left-handed materials, photonic crystals, and frequency selective surfaces (FSS) have broad application prospects in optical imaging, miniaturized antennas, and electromagnetic wave invisibility. [0003] At present, many metal foil periodic unit structures have been used as FSS in the field of radome. The hybrid radome technology based on FSS can realize the stealth of the antenna system in the frequency domain. Adding band-pass FSS to the radome can make a frequency-selective wave-transparent radome with in-band wave transmission and out-of-band total reflection, which c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q15/00H01Q17/00G02B1/00
CPCG02B1/002H01Q1/422H01Q15/0026H01Q15/0086H01Q17/008
Inventor 王俊鹏曹斌夏云刘序旻何惊华庄蕊王莉尹生杨东毛晶晶邹如荣
Owner AEROSPACE SCI & IND WUHAN MAGNETISM ELECTRON
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