Carbon-fibre composite as well as preparation method thereof and radar antenna using carbon-fibre composite

Abstract

The invention belongs to the technical field of radar communication, and more specifically relates to a carbon-fibre composite as well as a preparation method thereof and a radar antenna using the carbon-fibre composite. The carbon-fibre composite comprises epoxy resin and high strength carbon fiber; the total weight of all components is 100%, the weight percentage of the high strength carbon fiber is 60-70%, and the weight percentage of epoxy resin is 30-40%; the high strength carbon fiber is continuous filament type carbon fiber treated by polyacrylonitrile; the fiber has low density, high tensile strength and yield strength. The preparation method comprises the following steps: obtaining of prepreg, layered paving as well as insulation and pressure maintaining. The radar antenna comprises a casing, a feed network, an upper frame and a lower frame, the cross sections of the upper frame and the lower frame are trapezoids with narrow top and wide bottom, and a gap between the upper frame and the top of the lower frame forms an arrangement area for clamping and fixing the feed network. The radar antenna has the advantages of light quality, maintenance convenience, short manufacture period, and low manufacture cost.

Description

technical field [0001] The invention belongs to the technical field of radar communication, and in particular relates to a carbon fiber composite material, a preparation method thereof and a radar antenna using the material. Background technique [0002] For many years, airport surface management has been influenced by a combination of ground environment and weather conditions. The airport surface surveillance radar system is an important part of air traffic management facilities. It has high real-time target detection capability and can reliably and accurately detect the movement of aircraft and motor vehicles on the airport surface. Installing surface surveillance radar equipment and surveillance equipment at appropriate locations in the airport can enable controllers to know the traffic conditions on the airport surface under any conditions, thereby greatly improving the control conditions and safety of the airport surface and improving the efficiency of ground operations...

AI Technical Summary

Problems solved by technology

On the one hand, when the radar antenna that has reached the above-mentioned height above the ground is turned around with the axis of rotation as the plumb line, the situation of "darkness under the light" is often prone to occur; The larger the blind area of ​​irradiation, this obviously has an adverse effect on the control safety of the airport scene

On the other hand, the current radar antenna boxes are all made of aluminum alloy frame structure, which has a complex structure, a large number of parts, heavy weight and large size, which often affects the high-speed rotation of the radar antenna, which in turn makes the The scanning speed of the radar antenna to the observation area is reduced

With the continuous increase of air traffic, the effective management requirements of ground aircraft and motor vehicles are becoming more and more prominent, which will only increase the requirements for the technical indicators of the antenna box of the radar, such as the size, weight, and wind load area. The material of the traditional radar antenna And the structure has been difficult to meet the application requirements of modern airport monitoring

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