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High-wave transmission hollow-structure radome

A radome and hollow technology, which is applied in the field of communication reception, can solve the problems of increased difficulty in antenna design and low electromagnetic wave transmittance, and achieve the effects of light-weight and high-strength manufacturing technology, novel and unique structure, and reduced loss

Active Publication Date: 2014-04-09
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the materials used in radome are mainly single-layer solid wall structure. The single-layer solid wall structure is widely used because of its simple processing technology and high strength. However, due to its dielectric parameter ε (3.6-3.63) and The loss tangent tgδ (0.008-0.009) is relatively large, and the electromagnetic wave transmittance is low, which makes it more difficult to design the antenna when used as a radome, and this effect cannot be completely solved. These defects can only be accommodated through the overall design of the antenna. In this way, some index performance of the antenna is reduced or sacrificed

Method used

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  • High-wave transmission hollow-structure radome

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 The shown high-transparency hollow structure radome includes a radome body, and the side wall of the radome body includes a hollow fabric layer; the inner surface of the hollow fabric layer is compounded with an inner composite material layer; the outer surface of the hollow fabric is compounded with an outer layer. A composite material layer; the thickness of the inner composite material layer and the outer composite material layer is 1mm; the dielectric parameter of the inner composite material layer and the outer composite material layer is 2.9; the thickness of the hollow fabric layer is 10mm; The dielectric parameter is 2.6, and the loss tangent value is less than 0.007; the hollow fabric includes an upper surface layer, a core layer and a lower surface layer connected up and down in sequence, and the core layer is composed of fiber fabric units in the shape of "8"; the fiber fabric unit The density is 80000pcs / m 2 ; The shape of the longitudinal ...

Embodiment 2

[0030] It is basically the same as Example 1, except that the thickness of the inner composite material layer and the outer composite material layer are both 0.5mm; the dielectric parameters of the inner composite material layer and the outer composite material layer are 2.0; the hollow fabric The thickness of the layer is 2㎜; the dielectric parameter is 2.9, the loss tangent value is less than 0.007; the density of the fiber fabric unit is 10000 / m 2 ;

[0031] The resin glue is polyimide ester resin, and the merchant is Huizhi Technology (China) Co., Ltd., brand PI-031.

[0032] The fibers used in the hollow fabric layer, the inner composite material layer and the outer composite material layer are all basalt fibers.

Embodiment 3

[0034] It is basically the same as Example 1, except that the thickness of the inner composite material layer and the outer composite material layer are both 2.0mm; the dielectric parameters of the inner composite material layer and the outer composite material layer are 2.8; the hollow fabric The thickness of the layer is 15.0㎜; the dielectric parameter is 2.5, the loss tangent value is less than 0.007; the density of the fiber fabric unit is 200000 / m 2 ;

[0035] The resin glue is cyanate ester resin, and the merchant is Yangzhou Tianqi Chemical Co., Ltd., the brand name is CE01MO.

[0036] The fibers used in the hollow fabric layer, the inner composite material layer and the outer composite material layer are all aramid fibers.

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Abstract

The invention discloses a high-wave transmission hollow-structure radome. The high-wave transmission hollow-structure radome comprises a radome body; the side wall of the radome body comprises a hollow fabric layer. The high-wave transmission hollow-structure antenna cover is advantageous in high strength, light weight, easiness in manufacture, low price, low loss and high transmission rate, and can be used as various types of antenna protection. With the high-wave transmission hollow-structure radome adopted, requirements of antennas, for various kinds of performance of the radome can be satisfied, and higher wave transmission rate can be realized, and electromagnetic wave loss can be reduced.

Description

technical field [0001] The invention belongs to the field of communication reception, and in particular relates to a highly wave-transmissive hollow structure radome. Background technique [0002] The radome is one of the main components used to protect the antenna in the hood to work normally under various harsh environmental conditions. It is a dielectric shell used to protect the antenna and transmit electromagnetic signals. It must meet the requirements, and at the same time, it must pass through electromagnetic waves in a wide frequency band. At present, the materials used in radome are mainly single-layer solid wall structure. The single-layer solid wall structure is widely used because of its simple processing technology and high strength. However, due to its dielectric parameter ε (3.6-3.63) and The loss tangent tgδ (0.008-0.009) is relatively large, and the electromagnetic wave transmittance is low, which makes it more difficult to design the antenna when used as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
Inventor 匡宁耿杰王晓文赵大娟
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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