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    • 8. 发明授权
    • Radio frequency switch circuit
    • 射频开关电路
    • US08970279B2
    • 2015-03-03
    • US13779675
    • 2013-02-27
    • Samsung Electro-Mechanics Co., Ltd.
    • Sang Hoon HaSung Hwan ParkSang Hee KimNam Heung KimHyo Gun Bae
    • H03K17/687H03K17/16
    • H03K17/16H03K17/162H03K17/693
    • There is provided a radio frequency switch circuit including a first switch circuit unit connected between a first node connected to a first signal port and a common node connected to a common port, and operated according to a first control signal, a second switch circuit unit connected between a second node connected to a second signal port and the common node and operated according to a second control signal having a phase opposite to that of the first control signal, a first shunt circuit unit connected between the second node and a common source node and operated according to the first control signal, a second shunt circuit unit connected between the first node and the common source node, and a source voltage generating unit generating a source voltage, wherein the source voltage is lower than a high level of the first control signal and higher than a ground potential.
    • 提供了一种射频开关电路,包括连接在连接到第一信号端口的第一节点和连接到公共端口的公共节点之间的第一开关电路单元,并且根据第一控制信号操作,第二开关电路单元连接 在连接到第二信号端口的第二节点和公共节点之间并且根据具有与第一控制信号的相位相反的相位的第二控制信号来操作;第一分流电路单元,连接在第二节点和公共源节点之间;以及 连接在第一节点和公共源节点之间的第二分流电路单元和产生源极电压的源极电压产生单元,其中源极电压低于第一控制信号的高电平, 并高于地电位。