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Low Power Low Noise Tunable Active Inductor for Narrow Band LNA Design

by J. Manjula, S. Malarvizhi
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 47 - Number 17
Year of Publication: 2012
Authors: J. Manjula, S. Malarvizhi
10.5120/7284-0450

J. Manjula, S. Malarvizhi . Low Power Low Noise Tunable Active Inductor for Narrow Band LNA Design. International Journal of Computer Applications. 47, 17 ( June 2012), 39-43. DOI=10.5120/7284-0450

@article{ 10.5120/7284-0450,
author = { J. Manjula, S. Malarvizhi },
title = { Low Power Low Noise Tunable Active Inductor for Narrow Band LNA Design },
journal = { International Journal of Computer Applications },
issue_date = { June 2012 },
volume = { 47 },
number = { 17 },
month = { June },
year = { 2012 },
issn = { 0975-8887 },
pages = { 39-43 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume47/number17/7284-0450/ },
doi = { 10.5120/7284-0450 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:42:09.070166+05:30
%A J. Manjula
%A S. Malarvizhi
%T Low Power Low Noise Tunable Active Inductor for Narrow Band LNA Design
%J International Journal of Computer Applications
%@ 0975-8887
%V 47
%N 17
%P 39-43
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

This paper presents a low power, low noise and high quality factor tunable single ended active inductor suitable for designing multiband RF front end circuits. The active inductor circuit uses differential configuration as positive transconductor and PMOS cascode structure as negative transconductor of a gyrator to reduce the noise voltage. It uses MOS transistor as a feedback resistor to provide possible negative resistance to reduce the inductor loss to enhance the quality factor. Also this structure provides wide inductive bandwidth and high resonance frequency. The tuning of center frequency and quality factor for multiband operation is achieved through the controllable current source. The center frequency tuning range of the active inductor varies from 3. 9 GHz to 12. 3 GHz. The designed active inductor and LNA are simulated in 180nm CMOS process using HSPICE simulation tool. Simulation results of the active inductor shows an inductive bandwidth varies from 6. 45 MHz to 6. 3 GHz with the center frequency 6. 3 GHz. The inductance value ranges from 5nH to 550nH respectively. It has the less noise voltage of 12nV/?Hz to 5. 6nV/?Hz for the designed tuning range and consumes less power of 0. 65mW. The Low noise amplifier achieves the gain of 19dB, low noise figure of 2. 1dB and consumes low power of 4. 2mW.

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Index Terms

Computer Science
Information Sciences

Keywords

Active Inductor Quality Factor Centre Frequency Tuning Pmos Cascode Pair Tuning Range Mos Resistor Multiband Rf Front End

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