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发明公开
CN110138394A 一种信号收发装置与终端 审中-实审 转让

一种信号收发装置与终端
摘要：
本发明公开了一种信号收发装置与终端，用以解决现有技术中因天线不匹配等问题导致PA损坏的问题，且实现简单，成本较低。所述信号收发装置，包括：下行发送模块、上行接收模块、信号收发模块以及切换模块，所述切换模块包括：第一环形器、第二环形器、切换开关、以及电阻组件，其中，所述第一环形器的第一接口与所述下行发送模块连接，所述第一环形器的第二接口与所述信号收发模块连接，所述第一环形器的第三接口与所述第二环形器的第一接口连接；所述第二环形器的第二接口与所述切换开关的第一端连接，所述第二环形器的第三接口与所述电阻组件连接；所述切换开关的第二端与所述上行接收模块连接。
摘要（英）：

The invention discloses a signal transceiver and a terminal, which are used for solving the problem of PA (power amplifier) damage caused by antenna mismatching and the like in the prior art, and aresimple to realize and low in cost. The signal transceiver comprises a downlink sending module, an uplink receiving module, a signal transceiving module and a switching module, the switching module comprises a first circulator, a second circulator, a selector switch and a resistor assembly, wherein the first interface of the first circulator is connected with the downlink sending module, the secondinterface of the first circulator is connected with the signal transceiving module, and the third interface of the first circulator is connected with the first interface of the second circulator; a second interface of the second circulator is connected with a first end of the selector switch, and a third interface of the second circulator is connected with the resistor assembly; and the second end of the selector switch is connected with the uplink receiving module.

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