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1. 发明授权

US06567648B1 System combining radio frequency transmitter and receiver using circulator and method for canceling transmission signal thereof 失效
标题翻译：使用循环器组合射频发射机和接收机的系统以及用于消除其发射信号的方法
公开(公告)号：US06567648B1
公开(公告)日：2003-05-20
申请号：US09656945
申请日：2000-09-07
申请人： Dal Ahn , Jun Seok Park , Jong Chul Park , Chul Sang Yoon , Won Jun Kwak
发明人： Dal Ahn , Jun Seok Park , Jong Chul Park , Chul Sang Yoon , Won Jun Kwak
IPC分类号： H04B144
CPC分类号： H04B1/525
摘要： A transmitter/receiver combination system and a transmission signal canceling method for use in a wireless communication system using a single common antenna are provided. The system includes a circulator for receiving an original transmission signal from the transmitter, transmitting the received transmission signal to an antenna without a signal loss, and transmitting a reception signal received from the antenna to other ends without a signal loss, and a transmission signal canceller for dividing the transmission signal input in an attenuated form as much as a predetermined magnitude via the circulator together with the reception signal into two paths, producing two is phase inverted transmission signals with the same magnitude and delay time as those of the original transmission signal, and recombining the produced two transmission signals with each other, to thereby canceling the transmission signal and transmitting only the reception signal to the receiver.
摘要翻译：提供了一种在使用单个公共天线的无线通信系统中使用的发射机/接收机组合系统和传输信号消除方法。该系统包括用于从发射机接收原始发射信号的环行器，将接收到的传输信号发送到天线而不发生信号丢失，并且将从天线接收的接收信号发射到其他端而不发生信号丢失;以及传输信号消除器为了将通过循环器的衰减形式的衰减形式的输入信号与接收信号一起分成两条路径，产生两个与原始发送信号具有相同幅度和延迟时间的相位反转的发送信号，并将所产生的两个发送信号彼此重新组合，从而取消发送信号，并将接收信号仅发送到接收机。

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