In underground wireless communication in the coal mines, it is necessary for antenna to have good penetration and multi-path resistance to coal dust and water mist. The circular polarization antenna has two orthogonal fields, horizontal and vertical, and the circular polarization antenna has better penetration in coal seam water mist than the linear polarization antenna under the same power. The circular polarization is divided into left rotation polarization and right rotation polarization, and the antenna can only receive signals in the same polarization direction. In the process of underground propagation, the signal is easily reflected by obstacles, changes the polarization direction, and is not received by the original polarization direction antenna. In the underground environment of the coal mine, it can be used as an effective solution to resist multi-path. An array circular polarization antenna based on T power divider and uniform rotary the feed network is proposed in this paper. The circuit structure of 16-unit micro-strip array circular polarization antenna is introduced. The structure and working principle of feed network and antenna are analyzed. Finally, simulation and experiment show that the antenna has the advantages of high front-to-back ratio, is suitable for long-distance and high orientation reading and writing applications, and is very suitable for RFID long-distance reading and writing applications in coal mine long and narrow environment. It has good application prospects and economic benefits.

在煤矿井下无线通信中，要求天线对煤尘和水雾具有良好的穿透性和多径性。圆极化天线有水平和垂直两个正交的场，在相同功率下，圆极化天线在煤层水雾中的穿透能力比线极化天线更好。圆极化分为左旋极化和右旋极化，天线只能接收相同极化方向的信号。在地下传播过程中，信号容易被障碍物反射，改变极化方向，而不能被原来的极化方向天线接收到。在煤矿井下环境中，它可以作为抵抗多径的有效解决方案。本文提出了一种基于T功率分配器和均匀旋转馈电网络的阵列圆极化天线。介绍了16单元微带阵列圆极化天线的电路结构。分析了馈电网络和天线的结构和工作原理。最后，仿真和实验表明，该天线具有前后比高的优点，适用于远距离、高定向的读写应用，非常适合煤炭RFID远距离读写应用。矿山环境狭长。具有良好的应用前景和经济效益。本文提出了一种基于T功率分配器和均匀旋转馈电网络的阵列圆极化天线。介绍了16单元微带阵列圆极化天线的电路结构。分析了馈电网络和天线的结构和工作原理。最后，仿真和实验表明，该天线具有前后比高的优点，适用于远距离、高定向的读写应用，非常适合煤炭RFID远距离读写应用。矿山环境狭长。具有良好的应用前景和经济效益。本文提出了一种基于T功率分配器和均匀旋转馈电网络的阵列圆极化天线。介绍了16单元微带阵列圆极化天线的电路结构。分析了馈电网络和天线的结构和工作原理。最后，仿真和实验表明，该天线具有前后比高的优点，适用于远距离、高定向的读写应用，非常适合煤炭RFID远距离读写应用。矿山环境狭长。具有良好的应用前景和经济效益。最后，仿真和实验表明，该天线具有前后比高的优点，适用于远距离、高定向的读写应用，非常适合煤炭RFID远距离读写应用。矿山环境狭长。具有良好的应用前景和经济效益。最后，仿真和实验表明，该天线具有前后比高的优点，适用于远距离、高定向的读写应用，非常适合煤炭RFID远距离读写应用。矿山环境狭长。具有良好的应用前景和经济效益。