一种石英-石英陶瓷隐身天线罩的制备方法

By fabricating a quartz/quartz ceramic stealth radome, and employing vacuum impregnation and pressure impregnation methods combined with noble metal coating and laser etching technology, the problem of wave transmission stealth of the radome under high temperature environment was solved, achieving precise fabrication of frequency selective surface and good stealth performance at high temperature.

CN116093601BActive Publication Date: 2026-07-17CHANGSHA JINGYOU NEW MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGSHA JINGYOU NEW MATERIAL TECH CO LTD
Filing Date
2023-03-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to precisely fabricate frequency-selective surfaces on the radome surface, resulting in insufficient wave-transmitting stealth performance of the radome in high-temperature environments.

Method used

Using quartz fiber cloth as raw material, an antenna radome blank is prepared by vacuum impregnation and pressure impregnation, and a noble metal coating is applied to its surface. A frequency-selective surface with a specific pattern is prepared by laser etching, combining multilayer coating technology and three-dimensional curved surface laser etching processing technology.

Benefits of technology

It achieves wave-transmitting stealth performance of large-size radomes in high-temperature environments, possesses good temperature resistance and low infrared radiation characteristics, and solves the problem of frequency-selective surface preparation at high temperatures.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开一种石英 / 石英陶瓷隐身天线罩及其制备方法、应用,该制备方法以浓缩硅溶胶为浸渍液,先进行真空浸渍,再进行加压浸渍;在天线罩基体表面涂覆或沉积贵金属涂层;再根据实际需要预设设计图案,利用激光刻蚀在贵金属涂层上刻蚀得到特定图案的频率选择表面。该频率选择表面为天线罩提供频率选择特性,从而使天线罩在天线工作频段内透波、带外反射,实现天线罩的透波隐身功能。本发明提供的制备方法能同时解决大尺寸天线罩高温整体导体层制备与曲面频率选择表面图形的精确加工两大难题。
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