摘要
利用电阻加载及开槽技术,设计了一种工作于0.7-3.8 GHz的小型化Vivaldi天线。利用电磁仿真软件HFSS 13.0对天线进行了仿真模拟,并与实测结果进行了对比。结果表明:在0.7-3.8 GHz内,S_(11)小于-10 dB,增益适中,天线性能良好。电阻加载在一定程度上缩小了天线的尺寸,利用指数渐变曲线阶梯型开槽方法,改善了天线在低频段的电特性。该天线后向辐射较小,具有很好的定向辐射性能,天线平面尺寸为70 mm×80 mm,可用于探地雷达。
A compact Vivaldi antenna working on 0.7-3.8 GHz was designed by using resistance-loaded and slotting technology. The antenna was simulated and analyzed with simulation software HFSS 13.0. The simulation results and measured results were compared. The results show that the Sn is less than -10 dB and the gain is moderate in 0.7-3.8 GHz. Resistance-loaded can reduce the plane size of antenna and the exponent gradural change curve stepe slotting technology improves the electrical characteristics of antenna low frequency band. The backward radiation of antenan is low, so the antenna has a very good directional radiation performance. The antenna plane size is 70 mm×80 mm, which can be used in ground penetrating radar.
出处
《电子元件与材料》
CAS
CSCD
2015年第12期61-63,共3页
Electronic Components And Materials
关键词
VIVALDI天线
小型化
电阻加载
开槽
超宽带
仿真
Vivaldi antenna
compact
resistance-loaded
slotting technology
ultra-wideband
simulation
