TEMPERATURE ANALYSIS OF LNA WITH IMPROVED LINEARITY FOR RF RECEIVER

Suvarna Gulab Shimpi, Subha Subramaniam, Vidya Gogate

Abstract: In this paper we are fully integrated 5.5 GHz high-linearity low noise amplifier (LNA) is designing using post-linearization technique, in sub-120nm & sub-70nm technology. It developed using cascode amplifier with inductors. RC linearization circuit is designed to improve the linearity of the design. Cascode LNA circuit is designed for linearity improvement. In this work Temperature analysis is carried out for LNA circuit performance improvement fully integrated 5.5 GHz high-linearity low noise amplifier (LNA) is designing using post-linearization technique, in sub-120nm & sub-70nm technology. Temperature stability of the circuit is analysed for different temperature ranges our results prove that the proposed LNA design achieve high gain with good linearity. Although power dissipation of the circuit is high, good temperature stability is achieved. Temperature stability of the circuit is analysed for different temperature ranges our results prove that the proposed LNA design achieve high gain with good linearity. Although power dissipation of the circuit is high, we are able to achieve good temperature stability. The Low Noise Amplifier is a special type of electronic amplifier used in communication systems which amplifies very weak signals captured by an antenna.

Keywords: Linearity improvement LNA circuit, DSCH and Microwind software

DOI: https://doi.org/10.15623/ijret.2014.0303075