CAJ | 학술논문

介绍了一种在同轴电缆上，射频和基带信号复用传输的新方法。设计了射频信号和基带信号隔离电路，采用C?MBUS标准传输基带信号，在长为1 km、传输射频信号功率为40 dBm的同轴电缆上，达到了4800 b/s的数据传送速率，且同时可以为通信从机节点提供10 mA的电流。该方法具有硬件电路简单、成本低廉，容易组网的优点，适用于在射频线路上同时传输低数据速率的附加信息。
개소료일충재동축전람상，사빈화기대신호복용전수적신방법。설계료사빈신호화기대신호격리전로，채용C?MBUS표준전수기대신호，재장위1 km、전수사빈신호공솔위40 dBm적동축전람상，체도료4800 b/s적수거전송속솔，차동시가이위통신종궤절점제공10 mA적전류。해방법구유경건전로간단、성본저렴，용역조망적우점，괄용우재사빈선로상동시전수저수거속솔적부가신식。
A new method to transmit both baseband signal and RF(radio frequency)signal in a coaxial cable is introduced. A circuit to isolate baseband signal and RF signal was designed. The baseband signal is transmitted according to C?MBUS Stan?dard. On the 1 km coaxial cable,which transmits 40 dBm RF signal,4800 bps transmission rate was achieved,and 10 mA cur?rent can be provided for slave node. It has the advantages of simple circuit,low cost and easy networking. It is applied to trans?mitting the additional information of low data rate in the RF coaxial cable.