A 2.9-dB noise figure, Q-band millimeter-wave CMOS SOI LNA

Mehmet Parlak, James F. Buckwalter

2011 · 16 citations · 9 references

Concepts

Abstract

This paper discusses a two-stage low noise amplifier (LNA) implemented in a 45nm CMOS SOI process that operates between 43 and 53 GHz. The LNA stages are based on a cascode amplifier with simultaneous noise and input power matching. The LNA exhibits a minimum noise figure (NF) of 2.9 dB at 47 GHz and measured gain of 18.5 dB at 49 GHz. The output P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1dB</sub> compression power is 3 dBm and saturation output power is 7 dBm to reach a peak efficiency of 22%. The measured OIP3 is 14 dBm. The LNA occupies an area of 0.35mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> with pads and consumes 19 mA from 1.2 V supply. The results present the lowest noise figure for a silicon-based millimeter-wave LNA.

References

9