摘要
为减小双基站雷达散射截面,增加天线系统的隐身功能,提出一种新型的π型结构频率选择雷达吸波体(FSR)结构。FSR结构由位于顶层的电阻层和位于底层的频率选择表面(FSS)层组成中间由蜂窝泡沫隔开。通过仿真软件优化结构参数,给出了不同角度下FSR散射曲线。仿真结果表明,该FSR能够在中心频率为11.7 GHz上实现传输,其插入损耗为0.68 dB。通过在电阻层中引入π型结构在吸收带中产生两个共振频率,实现超宽带吸波带,吸波带宽为2.6~8.74 GHz,其相对带宽达到108%。该FSR通过吸收带外电磁波,能够有效减小双基站雷达散射截面。
To reduce the bistatic radar cross section and increase the stealth function of the antenna system,a novel frequency selective rabsorber(FSR)based onπ-style structure is proposed.The FSR consists of a resistance layer located at the top layer and a frequency selective surface(FSS)layer located at the bottom,they are separated by a honeycomb foam in the middle.The FSR design process is analyzed,and the structural parameters are optimized by simulation,and the scattering curves FSR different angles are given.The simulation results show that the FSR can transmit at a center frequency of 11.7 GHz with an insertion loss is 0.68 dB.The ultra-wideband absorbing band is realized by introducingπtype structure in the resistance layer to produce two resonance frequencies in the absorption band.The absorbing bandwidth is from 2.6 GHz to 8.74 GHz,and its relative bandwidth reaches 108%.By absorbing the electromagnetic waves outside the band,the FSR can effectively reduce the bistatic radar cross section.
作者
熊杰
陈娇
杨宝平
兰智高
XIONG Jie;CHEN Jiao;YANG Baoping;LAN Zhigao(Institute of Physics and Telecommunications,Huanggang Normal University,Huanggang 438000,Hubei,China)
出处
《实验室研究与探索》
CAS
北大核心
2021年第5期119-122,217,共5页
Research and Exploration In Laboratory
基金
国家自科基金项目(11703007)
湖北省教育厅项目(B2017196,B2019175)。
关键词
雷达散射截面
频率选择表面
雷达吸波体
隐身功能
radar cross section
frequency selective surface
radar absorber
stealth function
