全双工系统中收发隔离的分析与实现  

Analysis and Realization of Transmitter-receiver Isolation in Full-duplex System

作　　者：伍俊[1] 李柏渝[1] 周力[1] 欧钢[1] 

机构地区：[1]国防科技大学电子科学与工程学院卫星导航研发中心,长沙410073

出　　处：《微处理机》2010年第4期26-28,共3页Microprocessors

摘　　要：介绍与研究了全双工系统中收发隔离的理论与实现。首先一般性的分析和研究了全双工系统中收发隔离的理论和实现方法,接着着重分析了非同频全双工系统的特点,从工程实际的角度提出了二条设计原则,然后结合理论分析与设计原则。以"北斗一代"手持式接收机为背景,实际设计和制作了射频模块。最后将模块接入到手持机整机中,在暗室测试条件下,手持机发射时无失锁现象,实现了系统的收发隔离。This paper studies the theory and realization of transmitter- receiver isolation in full - duplex system. Starting with the general analysis and research of the theories and realization methods of transmitter - receiver isolation in system, then focuses on the special features of different channel full - duplex system and gives out two design principles from the actual engineering aspect. With the theory analyses and design principles, we design a RF module ~on the background of Beidou handset system. Finally,we install the module into the system, and test it in the microwave unreflected chamber, results show that the system works well when it transmits signals, and we realize the transmitter- receiver isolation in system.

关 键 词：全双工接收机 收发隔离 射频模块 

分 类 号：TN402[电子电信—微电子学与固体电子学]