基于准分形CSRR结构的低RCS微带天线  

A Low RCS Microstrip Antenna Based on Quasi Fractal CSRR Structure

作　　者：赵一[1] 曹祥玉[1] 杨欢欢[1] 商楷[1] 张浩[1] 袁子东[1] 

机构地区：[1]空军工程大学信息与导航学院,西安710077

出　　处：《现代雷达》2013年第7期54-58,共5页Modern Radar

摘　　要：基于Koch曲线设计出一种准分形互补开口谐振环结构。研究表明该结构具有小型化、高电磁损耗及谐振频点灵活可控的特点。将该结构加载到普通微带天线接地板上,在保证天线辐射性能的同时实现了天线带外雷达散射截面积的有效缩减。仿真和测试结果表明,新型微带天线前向增益仅损失0.22 dB,在QF-CSRR结构谐振频点,RCS最大减缩达到26.2 dB。A quasi fractal complementary split-ring resonator based on Koch curve is designed. Study shows that the miniaturized structure has high-electromagnetic loss and controllable resonance frequency. The structure is loaded on the ground plane of an or- dinary microstrip antenna to absorb out-band electromagnetic wave while preserving its radiation properties, thus the antenna radar cross section is reduced. Simulation and measured results demonstrate that the novel mierostrip antenna get only 0.22 dB positive gain loss while the maximum RCS reduction is up to 26.2 dB at the QF-CSRR resonance frequency.

关 键 词：互补开口谐振环 分形 小型化 电磁损耗 微带天线 雷达截面减缩 

分 类 号：TN822[电子电信—信息与通信工程]