摘要
通常频率选择表面雷达罩借助其几何外形,将带外信号反射到远离来波的方向,从而实现隐身.然而随着多基雷达反隐身技术的发展,这种反射信号仍然可以被侦测到.针对这一难题,提出一种加载电阻膜吸波材料的新型频率选择表面.该频率选择表面在低频工作带通内,不仅对大入射角和不同极化电磁波具有稳定的带通特性,而且在高频带外对电磁波表现出吸收特性,可以将探测信号吸收掉,从而大大降低被反隐身多基雷达探测的风险.另外,由于吸波材料的作用,使得频率选择表面的栅瓣也得到了很好的压制,降低了栅瓣对频率选择表面工作频带的干扰.
Commonly, by virtue of the frequency selective surface (FSS) radome's shape, out-band signals are reflected to other directions to achieve a stealth radome. However, with the development of the anti-stealth of poly-state radar technology, such reflected signals can be still detected. In view of this problem, a novel frequency selective surface loaded with resistance film absorbers is proposed. Such an FSS not only has a stable performance for various incident angles and for different polarizations, but also possesses absorptive property to electromagnetic waves in out-band. By virtue of this advantage, the out-band signals can be absorbed and the risk of anti-stealth detection can be greattly reduced. In addition, because of the function of the absorber, grating lobes of the FSS are also restrained, which reduces the interference of operating band.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第10期165-170,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60871027
60901029
61071058)
国家重点基础研究发展计划(批准号:2009CB623306)
陕西省电子信息系统综合集成重点实验室基金(批准号:201114Y11)
中国博士后科学基金(批准号:20100481327)资助的课题~~
关键词
雷达罩
吸波
频率选择表面
radome, frequency selective surface, absorber