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dc.contributor.advisorPapapolymerou, John
dc.contributor.authorSchmid, Robert L.
dc.date.accessioned2016-05-27T13:08:57Z
dc.date.available2016-05-27T13:08:57Z
dc.date.created2015-05
dc.date.issued2014-12-18
dc.date.submittedMay 2015
dc.identifier.urihttp://hdl.handle.net/1853/54838
dc.description.abstractThe objective of the proposed research is to create new reconfigurable RF and millimeter-wave circuit topologies that enable significant systems benefits. The market of RF systems has long evolved under a paradigm where once a system is built, performance cannot be changed. Companies have recognized that building flexibility into RF systems and providing mechanisms to reconfigure the RF performance can enable significant benefits, including: the ability support multiple modulation schemes and standards, the reduction of product size and overdesign, the ability to adapt to environmental conditions, the improvement in spectrum utilization, and the ability to calibrate, characterize, and monitor system performance. This work demonstrates X-band LNA designs with the ability to change the frequency of operation, improve linearity, and digitally control the tradeoff between performance and power dissipation. At W-band frequencies, a novel device configuration is developed, which significantly improves state-of-the-art silicon-based switch performance. The excellent switch performance is leveraged to address major issues in current millimeter-wave systems. A front-end built-in-self-test switch topology is developed to facilitate the characterization of millimeter-wave transceivers without expensive millimeter-wave equipment. A highly integrated Dicke radiometer is also created to enable sensitive measurements of thermal noise.
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technology
dc.subjectSilicon-germanium
dc.subjectCircuit design
dc.subjectW-band
dc.subjectRadar
dc.subjectCommunication
dc.subjectTransceiver
dc.subjectRadiometer
dc.titleHigh-frequency silicon-germanium reconfigurable circuits for radar, communication, and radiometry applications
dc.typeDissertation
dc.description.degreePh.D.
dc.contributor.departmentElectrical and Computer Engineering
thesis.degree.levelDoctoral
dc.contributor.committeeMemberCressler, John D.
dc.contributor.committeeMemberUlusoy, Ahmet Cagri
dc.contributor.committeeMemberDe Heer, Walter
dc.contributor.committeeMemberDurgin, Gregory
dc.date.updated2016-05-27T13:08:57Z


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