Low-power Adaptive Bipolar Low Noise Amplifier
نویسندگان
چکیده
In this paper, a low-power adaptive low noise amplifier (LNA) is presented. The LNA is based on a bipolar cascode topology, uses inductive source degeneration and emitter area scaling to achieve noise and input-impedance matching simultaneously. The input impedance and the noise factor were simulated as function of the bias collector current and the results show that both are approximately constant over a range of half a decade of bias current, gracefully degrade when the bias current decreases, thereby saving power.
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