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Voltage controlled variable attenuator

机译:压控可变衰减器

摘要

Voltage controlled variable attenuators are described that are configured to be coupled to a transmission path to furnish variable attenuation of a signal, such as a radio frequency signal. In one or more implementations, the voltage controlled variable attenuator includes at least one transistor. The transistor has an open configuration for at least substantially preventing the flow of current through the transistor, and a closed configuration for at least partially allowing the flow of current through the transistor. The variable attenuator also includes a resistive component coupled to the transistor, and configured to couple to the transmission path. The resistive component is configured to at least partially mitigate non-linear effect when the transistor transitions from the open configuration to the closed configuration. The transistor and the resistive component are configured to at least partially attenuate a signal transmitted along the transmission path when the transistor is in the closed configuration.
机译:描述了压控可变衰减器,其被配置为耦合到传输路径以提供诸如射频信号之类的信号的可变衰减。在一个或多个实施方式中,压控可变衰减器包括至少一个晶体管。晶体管具有用于至少基本上防止电流流过晶体管的开放配置,以及用于至少部分地允许电流流过晶体管的封闭配置。可变衰减器还包括耦合到晶体管的电阻部件,并且被配置成耦合到传输路径。电阻部件被配置为当晶体管从打开配置转变为闭合配置时至少部分地减轻非线性影响。晶体管和电阻部件被配置为当晶体管处于闭合配置时至少部分地衰减沿着传输路径传输的信号。

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