摘要
针对微带天线辐射性能提高和雷达散射截面(RCS)减缩这一矛盾,文中将仿生学原理应用到微带天线结构设计中,并提出一种蝴蝶仿生结构的微带天线。该结构在贴片蝶形化的基础上,将蝴蝶在阳光下呈现的深色区域通过开槽方式除去。理论分析和仿真、实测结果表明,该方法设计的微带天线在辐射性能没有变化的同时,在4 GHz~8 GHz频率范围内单站RCS有了较大幅度的减缩,最大减缩量达到了23 dBsm。
In order to solve the conflict between RCS (Radar Cross Section) reduction and performance of microstrip antenna, bionics principle is applied to antenna, and a bionic butterfly microstrip antenna is presented in this paper. The structure is cutting the fuscous area of butterfly in the sunshine away based on bow-tie patch. Simulation and measured results and analysis demonstrate that this bionic antenna can not only guarantee the antenna radiation performance, but also reduce the RCS of the antenna significantly at frequency range from 4 GHz to 8 GHz, the largest reduction is up to 23 dBsm.
出处
《现代雷达》
CSCD
北大核心
2011年第10期63-66,共4页
Modern Radar
基金
国家自然科学基金资助项目(60671001)
陕西省自然科学基础研究重点项目(2010ZJ010)
陕西省基础研究项目(SJ08-ZT06)
关键词
仿生学
微带天线
雷达散射截面
蝶形贴片
bionics
microstrip antenna
radar cross section
bow-tie patch