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    • 14. 发明申请
    • Semiconductor Antenna Switch
    • 半导体天线开关
    • US20110294445A1
    • 2011-12-01
    • US13113743
    • 2011-05-23
    • Satoshi GotoMasao Kondo
    • Satoshi GotoMasao Kondo
    • H04B1/44
    • H01P1/15H01P1/213
    • A semiconductor antenna switch has an antenna terminal, a transmission terminal and a reception terminal. The antenna switch is capable of reducing harmonic distortion even though it includes field effect transistors formed over a silicon substrate. A shunt transistor including a plurality of series-connected field effect transistors is connected between he transmission terminal and a common terminal, such as a common terminal, which may be an electrical ground. Off capacitances and/or gate widths of a plurality of the series-connected field effect transistors increase monotonically in the direction from the common terminal to the transmission terminal, or equivalently, decrease monotonically in the direction from the transmission terminal to the common terminal.
    • 半导体天线开关具有天线端子,发送端子和接收端子。 天线开关即使包括形成在硅衬底上的场效应晶体管也能够减少谐波失真。 包括多个串联连接的场效应晶体管的并联晶体管连接在传输终端和诸如可以是电接地的公共端子的公共端子之间。 多个串联场效应晶体管的关断电容和/或栅极宽度在从公共端子到发送端子的方向上单调增加,或者等效地在从发送端子到公共端子的方向上单调减小。