PERFORMANCE ENHANCEMENT OF LNA USING SERIES FEEDBACK

Year 2019, Volume: 37 Issue: 4, 1096 - 1106, 01.12.2019

Oktay Yurttakal Filiz Güneş

Abstract

In this paper, a small-signal microwave transistor with the series inductive feedback application subject to the required noise figure (Freq) and output mismatching (VSWRout) is analyzed at the chosen bias condition (VDS, IDS). Performance measure functions like Noise Measure (M), Mismatch Loss (ML), and Figure of Merit (FOM) are used to choose the beneficial feedback value for the design of Low Noise Amplifier (LNA). Once the optimum feedback value is selected, then the LNA application of a series inductive feedback applied transistor subject to the required noise figure and output mismatching is simulated with the input and the output matching circuit at the chosen frequency.

Keywords

LNA, feedback, noise measure, gain, VSWR.

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