摘要
为了展宽平面缝隙天线的带宽，设计一种X波段共面波导馈电的矩形宽缝隙振子天线，该天线是在缝隙振子天线的两端开矩形开口，与振子天线形成组合结构。使用高频仿真软件对设计的天线进行仿真分析，结果表明组合结构的天线性能比单一的振子缝隙天线或宽缝天线有大幅度的改善和提高。分析了天线主要参数对天线回波损耗的影响，并在带宽最优的条件下给出一组参数值，此时天线的-10dB带宽为41．14％（7．24～10．99GHz），增益为7．5dB，在所计算的带宽频率内有较稳定的方向图和良好的交叉极化特性。
In order to broaden the bandwidth of planar slot antennas,a X - band CPW -fed wide rectangular slot dipole antenna is designd. rectangular slots are added at the both ends of slot dipolar antenna, conformation composite structures with dipole antenna. The antenna is simulated and analysed with high frequency simulation software,The results show that the performance of composite structure antenna is improved and enhanced more than a single dipole antenna or wide slot antenna. The return loss of antenna impacted by main parameters of the antenna is analysed,and a set of parameter when it has the optimal bandwidth under -10 dB of 41.14%（7.24-10.99 GHz）,while the gain reach 7.5 dB, there are more stable pattern and a good cross - polarization characteristics in this frequency bandwidth.
出处
《现代电子技术》
2009年第23期98-100,共3页
Modern Electronics Technique
