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Mixed Linearity Improvement Techniques for Ultra-wideband Low Noise Amplifier.

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Title: Mixed Linearity Improvement Techniques for Ultra-wideband Low Noise Amplifier.
Authors: Abbas, Mohammed Nadhim1 mohammed.nadhim@uob.edu.iq, Khaleel, Farooq Abdulghafoor1
Source: International Journal of Electrical & Computer Engineering (2088-8708). Aug2018, Vol. 8 Issue 4, p2038-2045. 8p.
Subjects: Low noise amplifiers, Electronic linearization, Ideal sources (Electric circuits), Insertion loss (Telecommunication)
Abstract: 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 (NFmin.) of 3.6dB, input and output insertion losses (S11 and S22) 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. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract: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 (NFmin.) of 3.6dB, input and output insertion losses (S11 and S22) 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. [ABSTRACT FROM AUTHOR]
ISSN:20888708
DOI:10.11591/ijece.v8i4.pp2038-2045