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1. 发明授权

US06087998A Duplex antenna circuit assembly selectively operational in a transmit or a receive mode 失效
标题翻译：双工天线电路组件在发射或接收模式下选择性地工作
公开(公告)号：US06087998A
公开(公告)日：2000-07-11
申请号：US274046
申请日：1999-03-22
申请人： Tuan Kien Nguyen , Jun San Bong , Jia Sun
发明人： Tuan Kien Nguyen , Jun San Bong , Jia Sun
IPC分类号： H04B1/48 , H04B1/52 , H01Q1/36 , H04J1/00
CPC分类号： H04B1/52 , H04B1/48
摘要： A duplex antenna circuit assembly (1) selectively operational in a transmit or a receive mode. The assembly (1) has a transmitter amplifier (2) with an output coupled to an input of a transmitter impedance matching circuit (3) and there is a dual purpose transmitter tuning circuit (4) having an input coupled to an output of the transmitter impedance matching circuit (3). The assembly (1) also has a receiver amplifier (8) with an input coupled to an output of a receiver impedance matching circuit (9) and there is a dual purpose receiver tuning circuit (10) having an output coupled to an input of the receiver impedance matching circuit (9). There is also an antenna (5) having a first terminal output (6) coupled to the output of the transmitter tuning circuit (4) and a second terminal (7) coupled to an input of the receiver tuning circuit (10). When the assembly (1) is in transmit mode the transmitter tuning circuit (4) is operating substantially at resonance with the antenna (5), whilst the receiver tuning circuit (10) provides a low impedance coupling of the second terminal (7) to ground. Alternatively, when the assembly (1) is in receive mode, the receiver tuning circuit (10) is operating substantially at resonance with the antenna (5) whilst the transmitter tuning circuit (4) provides a low impedance coupling of the first terminal (6) to ground.
摘要翻译：选择性地在发射或接收模式下操作的双工天线电路组件（1）。组件（1）具有发射机放大器（2），其输出端耦合到发射机阻抗匹配电路（3）的输入，并且存在双向发射机调谐电路（4），其具有耦合到发射机的输出的输入阻抗匹配电路（3）。组件（1）还具有接收器放大器（8），其输入端耦合到接收器阻抗匹配电路（9）的输出，并且存在双用途接收器调谐电路（10），其具有耦合到接收机阻抗匹配电路（9）。还有一个天线（5）具有耦合到发射机调谐电路（4）的输出的第一终端输出（6）和耦合到接收机调谐电路（10）的输入的第二终端（7）。当组件（1）处于发射模式时，发射机调谐电路（4）基本上与天线（5）共振工作，而接收器调谐电路（10）提供第二端子（7）与地面。或者，当组件（1）处于接收模式时，接收机调谐电路（10）基本上与天线（5）共振工作，而发射机调谐电路（4）提供第一端子（6）的低阻抗耦合）到地面。

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