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.
出处
《现代雷达》
CSCD
北大核心
2013年第7期54-58,共5页
Modern Radar
