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Preparation method of high-frequency wave-transparent sandwich structure composite material 5G antenna housing

A sandwich structure and composite material technology, applied in antennas, antenna parts, chemical instruments and methods, etc., can solve the problems of unfavorable development of high-performance radomes, high production equipment requirements, and high curing temperature, so as to reduce material costs, The effect of reducing post-processing steps, meeting temperature resistance and wave transmittance requirements

Inactive Publication Date: 2018-07-13
上海本哲科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the production cost of the radome is also an important factor affecting its popularization and application. The base material and core layer material of the radome in the patent CN105856589A are all selected polyimide materials. This material is often used in the aerospace field, but the cost is relatively high, and the curing The temperature is higher than 300°C, which requires high production equipment, which is not conducive to the development of high-performance radome to the civilian market

Method used

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  • Preparation method of high-frequency wave-transparent sandwich structure composite material 5G antenna housing
  • Preparation method of high-frequency wave-transparent sandwich structure composite material 5G antenna housing
  • Preparation method of high-frequency wave-transparent sandwich structure composite material 5G antenna housing

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Embodiment 1

[0027] A method for preparing a high-frequency wave-transparent sandwich structure composite material 5G radome. The radome is a sandwich structure, including an upper skin 1, a lower skin 3, a honeycomb sandwich core material 2 and a bakelite board 4. The preparation method mainly It includes the following steps: first, the modified epoxy resin glue is impregnated with glass fiber to prepare a prepreg, and the glue content of the prepreg is 20%; The layer structure is 90° / 0° / 90°, and the lower skin of the radome is formed after first heating and curing by the autoclave process; the lower skin is covered with honeycomb core material, bakelite board and upper skin in sequence Lay-up of prepreg material, laying adhesive film between the upper and lower skins and the core material, tightly bonded to form a sandwich structure, the second heating and curing to form the radome; the radome panel is painted and processed after machining. The curing process is as follows: the curing te...

Embodiment 2

[0032] A method for preparing a high-frequency wave-transparent sandwich structure composite material 5G radome. The radome is a sandwich structure, including an upper skin 1, a lower skin 3, a honeycomb sandwich core material 2 and a bakelite board 4. The preparation method mainly It includes the following steps: first, the modified epoxy resin glue is impregnated with glass fiber to prepare a prepreg, and the glue content of the prepreg is 40%; The layer structure is +45° / 0° / -45°, and the lower skin of the radome is formed after the first heating and curing by the autoclave process; the honeycomb core material, the bakelite board and the upper skin are sequentially laid on the lower skin Skin prepreg layering, adhesive film between the upper and lower skins and the core material, tightly bonded to form a sandwich structure, the second heating and curing to form the radome; the radome panel is painted and processed after machining. The curing process is as follows: the curing...

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Abstract

The invention discloses a preparation method of a high-frequency wave-transparent sandwich structure composite material 5G antenna housing. The antenna housing consists of an outer covering skin and acore layer material, wherein the skin adopts a glass fiber-reinforced cyanate ester modified epoxy resin composite material, and the core layer selects an aramid fiber honeycomb core. By adopting a hot-pressing tank secondary forming process, the compactness of the composite material is ensured, the porosity of an antenna housing product is reduced, the antenna housing also has high strength, high temperature resistance, low dielectric constant and a high wave transparent rate while meeting high frequency, the production efficiency is high, the assembling procedures are reduced, the cost is low, the quality is stable, and the mass production requirement and the performance requirement of the civil antenna housing product can be met.

Description

technical field [0001] The invention relates to the field of radome preparation, in particular to a method for preparing a 5G radome made of a composite material with a high-frequency wave-transmitting sandwich structure. Background technique [0002] At present, the construction and development of China Mobile's communication network has entered a new stage, and antenna quality assurance and technology upgrading are the basic prerequisites for the realization of 5G communication. Since the 5G radome works in the high-frequency band, it generates a lot of heat, and the temperature can reach above 200°C. At present, the material of the radome is mainly made of PVC, ABS and other plastics. The temperature resistance of these plastics is below 100°C, which is far from satisfying. In addition, 5G base station antennas emit large-scale and highly directional narrow beams, so the material of the radome is required to have better wave transparency. [0003] In general, the paramet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B37/06B32B37/14B32B38/00B32B3/12B32B17/04B32B17/10B32B27/34B32B27/12B32B3/08B32B7/12B32B33/00H01Q1/42
CPCB32B3/08B32B3/12B32B5/02B32B7/12B32B17/064B32B27/12B32B27/34B32B33/00B32B37/06B32B37/1284B32B37/146B32B38/00B32B2038/0076B32B2260/021B32B2260/046B32B2262/101B32B2307/306B32B2307/734H01Q1/422
Inventor 徐中一顾生标汪贵平
Owner 上海本哲科技有限公司
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