Design of a Magnetically Tunable Low Noise Amplifier in 0.13 um CMOS Technology

dc.contributor.advisor Nathan M. Neihart
dc.contributor.author Brown, Jeremy
dc.contributor.department Electrical and Computer Engineering
dc.date 2018-08-11T14:46:53.000
dc.date.accessioned 2020-06-30T02:44:21Z
dc.date.available 2020-06-30T02:44:21Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2012
dc.date.embargo 2013-06-05
dc.date.issued 2012-01-01
dc.description.abstract <p>With legacy technologies present and approaching new wireless standards, the 1-10 GHz band of frequencies is quickly becoming saturated. Although saturated, the frequency bands are being utilized inefficiently. Cognitive radio, an intelligent wireless communication system, is the novel solution for the efficient utilization of the frequency bands. Front-end receivers for cognitive radio will need the capability to receive and process multiple frequency bands and a key component is the low noise amplifier (LNA). A tunable LNA using a new magnetically tuned input impedance matching network is presented. The LNA has been designed and simulated in a commercially available 0.13 μm CMOS technology and is capable of tuning from 3.2 GHz to 4.6 GHz as S<sub>11</sub> < -10 dB. Within this bandwidth the maximum power gain is 16.2 dB, the maximum noise figure is 7.5 dB, and the minimum IIP3 is -6.4 dBm. The total power consumption of the LNA (neglecting the buffer required to drive the 50 Ω test equipment) is 50 mW.</p> <p>This tunable LNA introduces a new magnetically tunable matching technique and tuning scheme capable of continuous frequency variation for LNAs. It is expected that this technique could be expanded to realize LNAs with a tunable, narrow-band response that can cover the entire 1-10 GHz band of frequencies. The presented tunable LNA has demonstrated the capability to cover and process multiple frequencies and can be used for reconfigurable systems. A tunable LNA design is the first step in an effort to realize a fully reconfigurable front-end radio frequency (RF) receiver for future cognitive radio applications.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/12672/
dc.identifier.articleid 3679
dc.identifier.contextkey 4186425
dc.identifier.doi https://doi.org/10.31274/etd-180810-1273
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/12672
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/26861
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/12672/Brown_iastate_0097M_12918.pdf|||Fri Jan 14 19:27:08 UTC 2022
dc.subject.disciplines Electrical and Electronics
dc.subject.keywords Low Noise Amplifier
dc.subject.keywords Magnetic Tuning
dc.subject.keywords Transformer
dc.subject.keywords Tunable
dc.title Design of a Magnetically Tunable Low Noise Amplifier in 0.13 um CMOS Technology
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication a75a044c-d11e-44cd-af4f-dab1d83339ff
thesis.degree.level thesis
thesis.degree.name Master of Science
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