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Lightweight low-dielectric composite material, 5G millimeter wave antenna housing adopting same and preparation method of antenna housing

A millimeter-wave antenna and composite material technology, applied in the field of radome, can solve the problems of radome mechanical properties such as poor impact resistance, easy to be damaged, high dielectric constant, high dielectric loss, etc., to achieve good impact resistance and easy installation , The effect of improving the dielectric properties

Pending Publication Date: 2021-12-21
SHANGHAI ALLIED PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Commonly used mobile communication base station radome is made of thermoplastics such as PC, ABS, ASA, etc., through injection molding, extrusion and other processes. The mechanical properties of such radome, especially the impact resistance, are poor. , high dielectric loss
In recent years, with the development of polymer material technology, a batch of new modified plastics have replaced the original plastic raw materials to improve the impact resistance of the radome, but the radome formed by this scheme is under the impact of the vertical radome When the load is applied, it is still easy to be damaged. At the same time, the dielectric constant and dielectric loss of the radome have limited improvement, and compared with the original scheme, it is still heavier.
On the other hand, these schemes are integrally formed by the radome, and the wave transmission and mechanical functions of the radome cannot be designed more reasonably according to the requirements of the cover body.

Method used

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  • Lightweight low-dielectric composite material, 5G millimeter wave antenna housing adopting same and preparation method of antenna housing
  • Lightweight low-dielectric composite material, 5G millimeter wave antenna housing adopting same and preparation method of antenna housing
  • Lightweight low-dielectric composite material, 5G millimeter wave antenna housing adopting same and preparation method of antenna housing

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Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0023] About Lightweight Low-K Dielectric Composites

[0024] Lightweight low dielectric composite material consisting of aramid honeycomb and microfoamed plastic. Micro-foamed plastics can be micro-foamed PMI, micro-foamed PP. Closed cell microcellular PMI is preferred. The density of the selected microfoamed plastics of the present invention is 70-110kg / m 3 , The dielectric constant does not exceed 1.2, and the dielectric loss does not exceed 0.001. On the one hand, aramid honeycomb can limit the flow of micro-foamed plastics during the molding process, avoiding the flow of micro-foamed plastics everywhere, resulting in uneven structure and uneven height. On the other hand, after molding, the unique honeycomb connection structure of aramid hone...

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Abstract

The invention discloses a lightweight low-dielectric composite material, a 5G millimeter wave antenna housing adopting the material and a preparation method of the antenna housing, and relates to an antenna housing. The lightweight low-dielectric composite material is composed of aramid fiber honeycombs and micro-foaming plastic. The 5G millimeter wave antenna housing adopting the light low-dielectric composite material comprises an antenna housing body, the middle part of the antenna housing body is hollowed out, and the antenna housing further comprises a composite material panel which is fixed at the hollowed-out part of the antenna housing body; the composite material panel is of a skin sandwich structure and comprises an upper skin located on the upper portion, a lower skin located on the lower portion, a core layer and a sealing edge, wherein the core layer and the sealing edge are clamped between the upper skin and the lower skin, the sealing edge is arranged around the core layer, and the core layer is made of light low-dielectric composite materials. The invention relates to a 5G millimeter wave radome adopting the light low-dielectric composite material. The composite material panel is good in tensile effect and impact resistance, and the dielectric property of the composite material panel is obviously improved compared with that of a PC / ABS plastic part of the same size.

Description

technical field [0001] The invention relates to the communication field, in particular to a radome. Background technique [0002] With the rapid development of 5G technology, the erection and installation of 5G base stations play an increasingly critical role. As an important part of the base station, the radome plays the role of protecting internal components, transmitting electromagnetic waves, and ensuring signal accuracy. Its mechanical properties, wave penetration performance, and installation convenience have a significant impact on the radome and even the entire base station. [0003] Commonly used mobile communication base station radome is made of thermoplastics such as PC, ABS, ASA, etc., through injection molding, extrusion and other processes. The mechanical properties of such radome, especially the impact resistance, are poor. , High dielectric loss. In recent years, with the development of polymer material technology, a batch of new modified plastics have rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
CPCH01Q1/424B32B5/18B32B3/12B32B27/34B32B27/12B32B5/02B29D99/006B32B2266/0214B32B2266/025B32B2266/08B32B2262/101B32B2262/10B32B2262/0269B32B2260/021B32B2260/046B32B2307/718B32B2307/54B32B2307/546B32B2307/558B32B2307/20
Inventor 冯启航唐荣政范文安齐松
Owner SHANGHAI ALLIED PLASTIC IND
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