A ku-band broadband multi-layer wave-transparent structure adapting to thickness variation

A wave-transmitting structure, broadband technology, applied in layered products, antennas, antenna parts, etc., to meet the effect of bearing performance and heat insulation

Active Publication Date: 2019-07-12
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are very few research materials on the wave-transparent structure used in high-speed aircraft at home and abroad, and the relevant patents that have been publicly reported do not involve the problem of broadband wave-transmission

Method used

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  • A ku-band broadband multi-layer wave-transparent structure adapting to thickness variation
  • A ku-band broadband multi-layer wave-transparent structure adapting to thickness variation
  • A ku-band broadband multi-layer wave-transparent structure adapting to thickness variation

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Embodiment 1

[0036]This embodiment provides a Ku-band broadband multi-layer wave-transparent structure that adapts to thickness changes, and the structure includes an outer layer 1, an intermediate layer 2, a sub-inner layer 3, and an inner layer 4; wherein, the outer layer 1, the intermediate layer 2 , the second inner layer 3 and the inner layer 4 are sequentially connected.

[0037] The material of the outer layer 1 is quartz ceramics with a thickness of 3.5 mm and a relative dielectric constant of 2.6; the material of the middle layer 2 is a nitride material with a thickness of 9.2 mm and a relative dielectric constant of 9.4; the material of the second inner layer 3 is Quartz ceramics with a thickness of 3.5mm and a relative permittivity of 2.6; the inner layer 4 is made of airgel material with a thickness of 4.5mm and a relative permittivity of 1.3.

[0038] The effect achieved by the above-mentioned multi-layer wave-transparent structure is: the radome has a load-bearing performance...

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Abstract

The invention discloses a Ku waveband broadband multilayer wave transmission structure adapting to thickness changes. The structure comprises an outer layer, a middle layer, a sub inner layer and an inner layer, wherein the outer layer, the middle layer, the sub inner layer and the inner layer are sequentially connected; the outer layer is made of quarts ceramic or a ceramic matrix composite material, and the middle layer is made of a nitride material or an aluminum oxide material; and the sub inner layer is made of quarts ceramic or a ceramic matrix composite material, and the inner layer is made of an aerogel material or a ceramic tile material. The Ku waveband broadband multilayer wave transmission structure effectively solves the problem about application of the multilayer broadband wave transmission structure to a high-speed aircraft, adapts to the high-temperature and high-load use environment of a high-speed aircraft and meets the requirement for broadband wave transmission.

Description

technical field [0001] The invention relates to the field of a radome, a wave-transmitting cover and an antenna window for a high-speed aircraft, in particular to a Ku-band broadband multi-layer wave-transmitting structure adapting to thickness changes. Background technique [0002] All kinds of wave-transparent structures such as radome / wave-transparent cover / antenna window must have certain functions of heat protection, load-bearing and wave-transmission according to their specific use environment. The design of the wave-transparent structure used on aircraft, ships and ground equipment mainly considers its electrical performance. The requirements for structural strength are not high, and basically do not involve the requirements for heat insulation. Such wave-transparent structures generally use foam and resin materials. , has a certain structural strength, and can meet the temperature requirements below 300°C. Due to the small mechanical load and low temperature, the wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00H01Q1/42
CPCB32B9/00B32B9/005B32B2307/20B32B2307/304B32B2307/306B32B2605/18H01Q1/422
Inventor 李翔岳松张俊武张利嵩王传兵周永鑫徐银芳陈政伟那伟杨驰邓刚
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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