新型人工电磁材料天线罩技术研究  

Research on a New Type of Artificial Electromagnetic Material Radome

作　　者：党涛 田殷[2] 王光明[1] 欧阳骏[3] DANG Tao;TIAN Yin;WANG Guang-ming;OUYANG Jun(Aeronautical Antimissile Institute of Air Force Engineering University Xi’an 710051;Sichuan Jiuzhou Electric Group Co.Ltd Mianyang Sichuan 621000;School of Electronic Science and Engineering,University of Electronic Science and Technology of China Chengdu 611731)

机构地区：[1]空军工程大学防空反导学院,西安710051 [2]四川九洲电器集团公司,四川绵阳621000 [3]电子科技大学电子科学与工程学院,成都611731

出　　处：《电子科技大学学报》2018年第5期686-691,共6页Journal of University of Electronic Science and Technology of China

摘　　要：基于飞行器天线隐身的需求,特别针对L波段机载宽带天线阵列隐身的具体要求,需要设计一款工作在L波段的超薄且宽带的频率选择表面(FSS)隐身天线罩,但由于天线工作频率较低,且带宽宽,使得传统设计方法设计的频率选择表面天线罩厚度较厚难以具备真正的工程应用价值。该文从宽带和低剖面两个关键角度出发,提出了一种正交分离式新型金属条电感层及方环电容层的亚波长级联结构并结合磁性材料加载的FSS策略,基于全局优化的遗传算法优化设计,实现了宽带低剖面的频率选择表面设计的隐形天线罩,通过理论分析和实际设计制作,最终设计厚度仅为0.035λ,相对带宽达到28.6%。Aiming at the requirement of stealth aircraft antenna,especially the specification for L-band broadband antenna array,it is needed to design a stealth radome with ultra-thin and wideband frequency selectivity surface(FSS)for working in L-band.Due to the low working frequency and wide bandwidth,the traditional design method will make the radome thickness thicker,which is hard to apply in practice.Taking broadband and low profile into consideration,this paper proposes a cascade sub-wavelength structure based on new orthogonal separation metal strip inductance layer,square ring capacitance layer and magnetic materials.At last,a broadband and low profile FSS with 0.035λthickness of and 28.6%relative bandwidth is designed by means of genetic algorithm.

关 键 词：宽带低剖面 频率选择表面(FSS) 遗传算法 磁性材料 天线罩 

分 类 号：TN82[电子电信—信息与通信工程]