本文主要讲述了天线的重要技术参数指标的含义，天线的种类，介绍了天线

的分集和合成技术，赋形波束技术和智能天线的概念。本文还给出了各种天

线的应用原则和各种无线环境下的天线选型原则，并讲述了天线下倾角的规

划设计方法，最后介绍了天线安装的注意事项-This paper describes the important technical parameters of the antenna the meaning of indicators, antenna type, antenna diversity introduced and synthesis, shaped beam technology and the concept of smart antennas. This article also provides a variety of antennas of the application of the principles and various wireless environment, the principle of selection of antennas and antenna under the angle about the planning and design methods, and finally introduces the antenna installation considerations