一种小型无线Mesh监测终端中的功率放大器设计  

Design of power amplifier in a small wireless Mesh monitoring terminal

作　　者：魏正华 叶小兰 WEI Zhenghua;YE Xiaolan(School of Electronic and Information Engineering,Changsha SocialWork College,Changsha 410004,China;School of Environmental Monitoring,Changsha Environmental Protection Vocational College,Changsha 410004,China)

机构地区：[1]长沙民政职业技术学院电子信息工程学院,长沙410004 [2]长沙环境保护职业技术学院环境监测学院,长沙410004

出　　处：《空天预警研究学报》2024年第3期215-219,共5页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

基　　金：湖南省自然科学基金(2024JJ8003);湖南省教育厅科学研究项目(23B1108)。

摘　　要：为解决矿井下通用型无线Mesh监测终端中的射频收发前端尺寸过大的问题,提出一种矿井下小型无线Mesh监测终端的射频收发前端设计方案.对该射频收发前端的发射链路中的驱动功率放大器和末级功率放大器采用微带线与集总元件混合的匹配电路设计方式,大大减小了电路尺寸,研制的射频收发前端样机尺寸仅为98mm×72mm×17mm.测试结果表明,样机的发射性能达到设计指标,实现了射频收发前端的小型化;本文提出的混合匹配电路设计方法是有效的.In order to solve the problem that the size of the RF transceiver front-end of the general-purpose wireless Mesh monitoring terminal in the underground mine is too large,a design scheme for the RF transceiver front-end of small wireless Mesh monitoring terminal used in the underground mine is proposed.In the transmitting link of the RF transceiver front-end,the matching circuit design of microstrip lines mixed with lumped elements is used for the driving power amplifier and the final power amplifier,which greatly reduces the circuit size.The size of the RF transceiver front-end prototype developed is only 98 mm×72 mm×17 mm.The test results show that the transmitter performance of the prototype reaches the design index,and that the miniaturization of the RF transceiver front-end is realized.The hybrid matching circuit design method proposed in this paper is effective.

关 键 词：无线MESH 监测终端 功率放大器 小型化 矿井下 

分 类 号：TN722.75[电子电信—电路与系统]