电波科学学报2018，Vol.33Issue(2)：126-131,6.DOI:10.13443/j.cjors.2017120401
天线频选罩的隐身特性研究
RCS performances of antenna FSS radome
摘要
Abstract
In view of the increasingly important radar antenna frequency selection surface (FSS) on military equipment,the characteristics of the FSS radar cross section (RCS) area and the difference from the metal surface RCS are analyzed,and the internal mechanism of this difference is clarified,which provides the theory guidance and solution for the improvement of the FSS radome and the similar cavity RCS Method.Firstly,the generation mechanism of the radar cavity RCS covering the frequency selection surface is theoretically analyzed,and then the data of different radar cavity RCS are calculated with the full wave rigorous simulation algorithm,and the theoretical analysis conclusion of the front is authenticated with the internal field map.The theoretical and simulation analysis shows that the high reflection characteristics outside FSS are not fully reflecting electromagnetic signal as the metal surface.The transmission of the radome and the electromagnetic wave energy accumulation and the two radiation caused by the cavity effect in the mask must be considered.These factors have great influence on the RCS of the frequency selective radar cavity.Finally,a method of reducing cavity resonance effect and energy converging to improve the frequency selection mask RCS is proposed,and the method makes the improvement of RCS up to 10 dB in most frequency bands,which has achieved good results.关键词
频率选择表面(FSS)/雷达散射截面积(RCS)/腔体谐振效应/吸波材料/电磁仿真Key words
frequency selective surface(FSS)/radar-cross section(RCS)/cavity resonance/radar absorbing material(RAM)/electromagnetic simulation分类
信息技术与安全科学引用本文复制引用
鄢学全,任嘉莹,张德生,蒋寻涯..天线频选罩的隐身特性研究[J].电波科学学报,2018,33(2):126-131,6.基金项目
上海市军民融合项目——三维全矢量光电/电磁波仿真软件的研制及产业化应用 （）
