基站天线机械下倾和电下倾辐射特性分析

内容简介：对倾斜极化阵列单元组成的移动通信基站智能天线的辐射波束机械下倾和电下倾作了计算和讨论。结果表明，垂直面自由空间波瓣图、直射波地面场强分布和水平面交叉极化比，机械下倾波束比电下倾更有利于通信；而户外施工和网络在线调试，电下倾比机械下倾优越。

Abstract：The mechanical and electrical descending beam patterns used in mobile communication base station smart antenna which composed of radiating elements of array with inclined polarization are computed and discussed. The results indicated that the mechanical descending beam patterns are more benefit to communication than the electrical descending for free space patterns in a vertical plane, direct incidence ground field strength distributions and ratios of cross polarization in a horizontal plane. But the electrical descending beam patterns are more convenient than the mechanical descending for outdoors construction and network on-line debugging.

作者：束咸荣, 董玉良, 王华,

关键词：智能天线, 机械下倾, 电下倾, 地面场强, 交叉极化比,