【摘要】 本文应用反应积分方程及统一几何绕射理论分析了临近有限尺寸导电平板的一种圆极化天线的辐射。首先用反应积分方程求得天线在临近无限大导电平板时的辐射,然后用统一几何绕射理论计算天线在有限尺寸导电平板边缘上产生的绕射,最后应用叠加原理求得天线合成方向图。应用这种方法可计算天线方向图、天线效率、天线电流分布及天线输入阻抗。对一种天线的实验结果与理论计算进行了比较,说明了这种分析是正确的。更多还原

【Abstract】 In this treatise, the reaction integral equation and uniform geometrical theory of diffraction are employed to analyse the radiation from a wide angle circular polarized antenna approaching a finite ground plane. The amount of radiation from the antenna when it approaches a infinite ground plane is first obtained with a reaction integral eguation and the diffraction field generated by the antenna at the edge of a finite ground plane is then calculated by means of U. G. T. D., and the composite antenna pattern is finally obtained by the principle of superposition. The rediation pattern, efficiency, input impedance and current distribution of the antenna can be computed by application of this method. Experimental results, using one type of antenna as an example, are compared with that from theoretical computation, and it shows that the analysis is correct.更多还原