摘要
选择强方向性Vivaldi天线作为研究对象,基于等效电路等理论分析确定了天线的结构参数,采用高频仿真软件Ansoft HFSS 11对天线的电性能进行定量分析。提出在天线两侧开栅栏和尾部加抗流栅栏的优化方法,将天线金属贴片上的表面电流汇聚于槽线部分,明显改善了天线的辐射特性,在350 MHz和830 MHz的增益分别达到5.7 dBi和8.7 dBi。
The highly directional tapered slot-line antenna（TSA） is taken as the research object to determine the structural pa- rameters by analyzing such as the equivalent circuit. For the quantitative analysis, the antenna is simulated with the software of Ansoft HFSS 11. The article proposes the method to improve and optimize antenna＇s structure by the way of adding slots on the metal patch. By the means, the current can be forced to gather up along the taper-slot to improve the antenna radiation property. The gain of 350MHz is 5.7 dBi while the gain of 830 MHz is 8.7 dBi.
出处
《电子技术应用》
北大核心
2012年第5期106-108,112,共4页
Application of Electronic Technique
