航空科学技术2024，Vol.35Issue(2)：100-105,6.DOI:10.19452/j.issn1007-5453.2024.02.012
X及Ku波段宽带极化转换超表面设计及RCS缩减应用
Design of Broadband Polarization Conversion Metasurface for X and Ku Bands and RCS Reduction Applications
摘要
Abstract
For anti-detection of high-resolution radar and electromagnetic stealth issues,a broadband reflective polarization conversion metasurface is designed for X and Ku bands,which can achieve more than 85%polarization conversion efficiency in the range of 6.5～8GHz and more than 90%polarization conversion efficiency in the range of 8～20GHz,and the relative bandwidth of polarization conversion efficiency above 85%is 101%,and the thickness of metasurface structure is less than 3.6mm.Square and triangle chessboard structures are designed based on this metasurface,the radar scattering cross section of both chessboard structures has been greatly reduced under vertical incidence of x-polarized and y-polarized electromagnetic waves compared with the same size metal.Both have polarization insensitive characteristics,in which the maximum RCS reduction of square chessboard structure reaches 22.91dB,and the average RCS reduction of square chessboard structure reaches 11.73dB.The maximum RCS reduction of triangle chessboard structure reaches 36.07dB,and the average RCS reduction of triangle chessboard structure reaches 12.29dB,playing a significant role in reducing the single station RCS and improving electromagnetic stealth performance.关键词
极化转换超表面/雷达截面积/极化转换效率/人工磁导体/棋盘式排布Key words
polarization conversion metasurface/RCS/polarization conversion ratio/artificial magnetic conductor/chessboard structures分类
信息技术与安全科学引用本文复制引用
赵浥彤,王钢林,唐兴中,李岩..X及Ku波段宽带极化转换超表面设计及RCS缩减应用[J].航空科学技术,2024,35(2):100-105,6.
