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This letter presents a novel low‐noise variable‐gain amplifier (VGA) with an interstage reflection‐type attenuator. The VGA consists of a common‐source amplifier in the first stage for noise reduction, and a cascode amplifier in the second stage for gain enhancement. The built‐in attenuator and an inductor are inserted between transistors of the cascode configuration. The attenuator is used for gain...
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