Abstract:This paper presents a mathematical modeling of noise performance in source inductive degeneration topology which widely used in narrow band amplifier. The proposed model is conducted by utilizing a small-signal MOSFET model to generate the effective transconductance of circuits. The performance of noise figure can be preserved by selecting the device width while preserving a stable bias voltages and maintaining the device length unchanged. Using the mathematical model, a low noise amplifier is designed and obt… Show more
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