地铁通信系统中的新型多系统合路平台设计与应用  

Design and Application of Point of Interface for Metro Communication

作　　者：李安庆[1] 江晋剑 LI Anqing;JIANG Jinjian(Department of Communication Engineering, Anhui Post and Telecommunication College, Hefei 230031, China;School of Computer and Information, Anqing Normal University, Anqing 246133, China)

机构地区：[1]安徽邮电职业技术学院通信工程系,安徽合肥230031 [2]安庆师范大学计算机与信息学院,安徽安庆246133

出　　处：《安庆师范大学学报（自然科学版）》2018年第4期50-58,共9页Journal of Anqing Normal University(Natural Science Edition)

基　　金：安徽省高校自然科学研究重点项目(KJ2016A383)

摘　　要：针对地铁4G移动通信覆盖方案,设计了一款10进2出POI系统,实现了LTE与2/3G多系统的信号合路传输。该系统具有合路损耗小、端口隔离度高、带外抑制度高、功率容量大、高温度稳定性和三阶互调低等特点,能够避免系统间的相互干扰。另外,POI器件具有体积小、性能高且满足低成本、易量产等优势。In view of the coverage scheme of4G mobile communication,a new10to2POI system is designed to realize the transmission of LTE and2/3G multi-systems.This product has the characteristics of low loss,high port isolation,high degree of external restraining,high power capacity,good temperature stability and low three-order intermodulation,which can avoid interference between systems.In addition,POI devices have the advantages of small size,high performance and low cost and easy to be produced.

关 键 词：地铁 多系统合路平台 三阶互调 3dB电桥 

分 类 号：TN249[电子电信—物理电子学]