[关键词]
[摘要]
通过平面波叠加法,分析了初级馈源位置对PEC和PMC作为接地板的2类Fabry-Perot谐振天线的最大方向性系数及其带宽的影响。分析表明初级馈源位置在满足特定条件取值时,Fabry-Perot谐振天线将获得最大的定向性,但其定向性带宽并不随馈源位置有明显改变。同时,首先指出定向性与其带宽的乘积仅是Fabry-Perot谐振天线的反射盖板其反射系数模的函数,并随着反射系数模的增加而趋于某一定值。最后进行了仿真验证,仿真结果与理论计算具有很好的一致性,对Fabry-Perot谐振天线的设计具有很好的理论指导意义。
[Key word]
[Abstract]
The directivity and its bandwidth properties of Fabry-Perot resonator antennas made of two different ground plate covered with a partially-reflecting surface are studied theoretically,respectively.The relationship between the directivity and the primary source location is also obtained.It is shown that the directivity of Fabry-Perot resonator will obtain its maximum when primary source is located at certain of position for different type of ground plate.But the directivity bandwidth will not very obviously ...
[中图分类号]
[基金项目]
国家自然科学基金资助项目(60921063)
