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1. 发明授权

US09397720B2 Method and system for integrating transmit switch functionality in a WLAN radio transceiver 有权
标题翻译：用于在WLAN无线电收发器中集成发射开关功能的方法和系统
公开(公告)号：US09397720B2
公开(公告)日：2016-07-19
申请号：US12635382
申请日：2009-12-10
申请人： Albert Chia-Wen Jerng , Jen-Wei Ko , Weijun Yao , Eric Chiyuan Lu
发明人： Albert Chia-Wen Jerng , Jen-Wei Ko , Weijun Yao , Eric Chiyuan Lu
IPC分类号： H04B1/44 , H04B1/00
CPC分类号： H04B1/44 , H04B1/00
摘要： A radio transceiver is disclosed. The transceiver comprises an integrated circuit. The integrated circuit comprises a transmit path; a first switch coupled in series with the output of the transmit path; a receive path; and a second switch coupled as a shunt with the input of the receive path. The transceiver further comprises a plurality of external matching networks coupled to the transmit and receive paths of the integrated circuit to ensure minimal loading from one path to the other. The transceiver also comprises a shared balun for converting differential signals from the plurality of external matching networks to single ended signals; and an antenna to interface with the single ended signals. A method and system in accordance with an embodiment enables tying together the transmit path and the receive paths of a radio transceiver without the need for an external T/R switch. A method and system in accordance with an embodiment minimizes the loading effects between the transmit path and the receive path such that output power and NF noise figure are not degraded after tying the transmit path and the receive path together.
摘要翻译：公开了一种无线电收发器。收发器包括集成电路。集成电路包括发送路径; 与发送路径的输出串联耦合的第一开关; 接收路径; 以及作为与所述接收路径的输入的分流耦合的第二开关。收发器还包括耦合到集成电路的发射和接收路径的多个外部匹配网络，以确保从一个路径到另一路径的最小负载。收发器还包括用于将来自多个外部匹配网络的差分信号转换为单端信号的共享平衡 - 不平衡变换器; 以及与单端信号接口的天线。根据实施例的方法和系统使得能够将无线电收发器的发送路径和接收路径结合在一起，而不需要外部T / R开关。根据实施例的方法和系统使发送路径和接收路径之间的负载效应最小化，使得在将发送路径和接收路径绑定在一起之后，输出功率和NF噪声系数不降低。

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