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Reseach Article

Analysis of Active Feedback and its Influence on UWB Low Noise Amplifier

by P.keerthana, V.vaithianathan, J.raja, R.srinivasan
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 89 - Number 18
Year of Publication: 2014
Authors: P.keerthana, V.vaithianathan, J.raja, R.srinivasan
10.5120/15733-4645

P.keerthana, V.vaithianathan, J.raja, R.srinivasan . Analysis of Active Feedback and its Influence on UWB Low Noise Amplifier. International Journal of Computer Applications. 89, 18 ( March 2014), 29-35. DOI=10.5120/15733-4645

@article{ 10.5120/15733-4645,
author = { P.keerthana, V.vaithianathan, J.raja, R.srinivasan },
title = { Analysis of Active Feedback and its Influence on UWB Low Noise Amplifier },
journal = { International Journal of Computer Applications },
issue_date = { March 2014 },
volume = { 89 },
number = { 18 },
month = { March },
year = { 2014 },
issn = { 0975-8887 },
pages = { 29-35 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume89/number18/15733-4645/ },
doi = { 10.5120/15733-4645 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:09:36.331987+05:30
%A P.keerthana
%A V.vaithianathan
%A J.raja
%A R.srinivasan
%T Analysis of Active Feedback and its Influence on UWB Low Noise Amplifier
%J International Journal of Computer Applications
%@ 0975-8887
%V 89
%N 18
%P 29-35
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper, various active feedback techniques for Ultra-Wide Band (UWB) CMOS Low Noise Amplifier (LNA) are proposed. First, an LNA consisting of Common Gate (CG) stage for input matching, cascode with interstage current reuse as core stage and Common Drain (CD) stage for output matching is presented. Three feedback techniques such as global feedback, local full feedback and local partial feedback techniques are employed in this LNA. The analysis is made for the different feedback networks consisting of resistive, common source, common gate and common drain. The proposed LNA is designed with 90 nm technology and its performance is analyzed with Agilent's ADS simulator. Among the analyzed LNA's, CG partial active feedback and CD partial active feedback achieves power gain of 23. 8 dB and 23. 75 and noise figure of 6. 1-6. 3 dB and 4. 6-5. 8 dB respectively.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Global feedback Local full feedback Local partial feedback.