地网性质对于PIFA天线性能的影响

The influence of ground plane's properties on the PIFA performance

借助HFSS仿真软件,仿真验证了当馈电点和接地点位于地网短边且平行于短边时,PIFA天线性能较好,进一步全面分析了此情况下地网大小形状对PIFA天线阻抗、谐振频率、增益、方向图等天线主要参数的影响.结果表明,地网的长度、宽度对PIFA天线性能有不同的影响.这些结果将为PIFA天线在有限地网中的设计提供理论支持.

This paper presented resulted by using the software HFSS when the PIFAs were placed near a corner of the ground plane with the shourting plate located at the ground plane shorter edge,PIFA perform with high gain and large bandwidth.Further more an comprehensive analysis about the infuence of ground plane geometry on PIFA antenna's impedance resonant frequency,gain and radiation for this conditon was presented.Specifically,the results showed the influence by the length and the width was different.These results could give some theory support on the PIFA's design in the finite ground plane.