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    • 1. 发明授权
    • Method and system for impedance matched switching
    • 阻抗匹配切换的方法和系统
    • US06903596B2
    • 2005-06-07
    • US10388459
    • 2003-03-17
    • Bernard GellerGlen C. MethenyDaniel Shaw
    • Bernard GellerGlen C. MethenyDaniel Shaw
    • H01P1/15H03K17/687
    • H01P1/15
    • A system for impedance matched switching of an input signal from an input source includes a first switch, such as an FET, for controllably switching the input signal from an input terminal connected to the input source to an output terminal, the switching being controlled according to a control voltage. The system further includes a second switch, such as an FET, for controllably switching a matching impedance between the input terminal and ground according to the control voltage. When the input signal is prevented from passing from the input terminal to the output terminal by the first switch, the input signal passes through the matching impedance, which has an impedance characteristic substantially matched to an impedance characteristic of the input source.
    • 用于来自输入源的输入信号的阻抗匹配切换的系统包括诸如FET的第一开关,用于将输入信号从连接到输入源的输入端子可控地切换到输出端子,该开关根据 一个控制电压。 该系统还包括诸如FET的第二开关,用于根据控制电压可控地切换输入端和地之间的匹配阻抗。 当通过第一开关防止输入信号从输入端子传递到输出端子时,输入信号通过匹配阻抗,其具有与输入源的阻抗特性基本匹配的阻抗特性。