Open AccessMixed Linearity Improvement Techniques for Ultra-wideband Low Noise Amplifier
Author(s) -
Mohammed Nadhim Abbas,
Farooq Abdulghafoor Khaleel
Publication year - 2018
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v8i4.pp2038-2045
Subject(s) - linearization , linearity , low noise amplifier , wideband , cmos , noise figure , amplifier , electronic engineering , electrical engineering , computer science , physics , engineering , nonlinear system , quantum mechanics
We present the linearization of an ultra-wideband low noise amplifier (UWB-LNA) operating from 2GHz to 11GHz through combining two linearization methods. The used linearization techniques are the combination of post-distortion cancellation and derivative-superposition linearization methods. The linearized UWB-LNA shows an improved linearity (IIP3) of +12dBm, a minimum noise figure (NF min. ) of 3.6dB, input and output insertion losses (S 11 and S 22 ) below -9dB over the entire working bandwidth, midband gain of 6dB at 5.8GHz, and overall circuit power consumption of 24mW supplied from a 1.5V voltage source. Both UWB-LNA and linearized UWB-LNA designs are verified and simulated with ADS2016.01 software using BSIM3v3 TSMC 180nm CMOS model files. In addition, the linearized UWB-LNA performance is compared with other recent state-of-the-art LNAs.