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 d

The project aims to provide a robust hardware solution towards blind navigation in mass-transit, crowded public transportation systems (airports, bus stations, railways, etc.). The IEEE 802.15.4/Zigbee based transceiver and RFID tags would be used to

现在物联网如此火热但是只能买别人现成的RFID节点来用 想不想自己做板 那么天线设计至关重要-Things are so hot but you can only buy ready-made RFID nodes to others want to make their own board with antenna design is critical that