HIGH POWER HIGH ISOLATION LOW CURRENT CMOS RF SWITCH
    5.
    发明申请
    HIGH POWER HIGH ISOLATION LOW CURRENT CMOS RF SWITCH 审中-公开
    高功率高隔离低电流CMOS射频开关

    公开(公告)号:US20130252562A1

    公开(公告)日:2013-09-26

    申请号:US13836698

    申请日:2013-03-15

    CPC classification number: H04B1/44

    Abstract: A novel and useful RF switch that comprises four transistors configured to have four operating states, wherein at any time at most one transistor is in ‘on’ state. The switch is an on-chip switch and is constructed in using CMOS processes and technology. The switch is optionally a double pole, double throw (DPDT) switch. The switch can be used in numerous mobile devices such as a cellular phone or in the handset or base station of a cordless phone. The switch optionally selects between two antennas and between transmitter and receiver circuits. Within the switch, at least one of the at least four transistors is optionally an N-channel Metal Oxide Semiconductor (NMOS) transistor. The switch can further comprise one or more logic control circuits providing biasing voltages to one or more of the transistors. Within the switch, the control circuit comprises logic components for providing appropriate biasing voltages to the drain, source and gate terminals of the transistors in the switch.

    Abstract translation: 一种新颖且有用的RF开关,其包括配置成具有四个工作状态的四个晶体管,其中在任何时间至多一个晶体管处于“导通”状态。 该开关是片上开关,采用CMOS工艺和技术构建。 该开关可选择是双极双掷(DPDT)开关。 该交换机可以用于许多移动设备,例如蜂窝电话或无绳电话的手机或基站中。 该交换机可选择在两个天线之间以及发射机和接收机之间进行选择。 在开关内,至少四个晶体管中的至少一个晶体管可选地是N沟道金属氧化物半导体(NMOS)晶体管。 开关还可以包括向一个或多个晶体管提供偏置电压的一个或多个逻辑控制电路。 在开关内,控制电路包括用于向开关中的晶体管的漏极,源极和栅极端子提供适当偏置电压的逻辑部件。

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