Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio

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aut.relation.articlenumber1273en_NZ
aut.relation.endpage16
aut.relation.issue6en_NZ
aut.relation.journalSensors (Switzerland)en_NZ
aut.relation.startpage1
aut.relation.volume19en_NZ
aut.researcherLi, Xuejun
dc.contributor.authorAneja, Aen_NZ
dc.contributor.authorLi, XJen_NZ
dc.date.accessioned2020-07-02T04:00:40Z
dc.date.available2020-07-02T04:00:40Z
dc.date.copyright2019en_NZ
dc.date.issued2019en_NZ
dc.description.abstractThis paper presents the design and analysis of a continuously tunable low noise amplifier (LNA) with an operating frequency from 2.2 GHz to 2.8 GHz. Continuous tuning is achieved through a radio frequency impedance transformer network in the input matching stage. The proposed circuit consists of four stages, namely transformer stage, tuning stage, phase shifter and gain stage. Frequency tuning is controlled by varying output current through bias voltage of tuning stage. The circuit includes an active phase shifter in the feedback path of amplifier to shift the phase of the amplified signal. Phase shift is required to further achieve tunability through transformer. The LNA achieves a maximum simulated gain of 18 dB. The LNA attains a perfect impedance match across the tuning range with stable operation. In addition, it achieves a minimum noise figure of 1.4 dB.en_NZ
dc.identifier.citationSensors, 19(6), 1273. doi:10.3390/s19061273
dc.identifier.doi10.3390/s19061273en_NZ
dc.identifier.issn1424-8220en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/13486
dc.publisherMDPI
dc.relation.urihttps://www.mdpi.com/1424-8220/19/6/1273
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectGreen radio; Software defined radio; Low noise amplifier; Transformer network; Tuning transistor; Phase shifter
dc.titleDesign and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radioen_NZ
dc.typeJournal Article
pubs.elements-id355755
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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