【摘要】 蜂窝移动通信系统中的基站天线通常由直线阵列加反射板构成 ,而反射板的形状主要影响天线的前后比特性及水平面辐射方向图。该文对适合于基站天线的几种典型反射板形状进行优选 ,并采用矩量法线栅技术仿真计算了各种反射板形状对天线辐射性能的影响 ,根据仿真结果给出了满足基站天线双频辐射要求的反射板形状。更多还原

【Abstract】 In the cellular mobile communication system, the base-station antenna often consists of a linear array antenna backed by a reflector, and the reflector mainly affects the characteristic of front-to-back ratio and the radiation pattern in the horizontal plane. In this paper optimization of several typical reflector shapes suitable for the base-station antennas is addressed. By using the wire-grid technique in the method of moment, radiation characteristics of these reflector shapes are simulated. According to the simulation results, the optimum reflector shape meets the radiation requirement of the dual frequency base-station antennas.更多还原