折合倒 L 型车载天线的矩量法研究

INVESTIGATION INTO FOLDED INVERT L SHAPED VEHICLE ANTENNA BY MOMENT METHOD

用矩量法研究折合倒Ｌ型车载天线的电流分布，输入阻抗，方向性及导线大小对其性能的影响。结果表明，这种天线具有低的架设高度，容易架设在车顶；只要选择天线高度和导线直径即可实现与５０Ω馈线匹配而不需要匹配网络；具有较大的辐射电阻和较高的效率。

This paper deals by moment method with the effect of current distribution,input impedance and wire diameter of the L shaped vehicle antenna on its properties.The result shows that this antenna is characterized by its small height easily mounted on the top of the car,50Ω feeder line without a matching network after the proper selection of the height and wire diameter,great radiation resistance and high efficiency.