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AuthorGautier, Williamdc.contributor.author
Date of accession2016-03-15T06:22:57Zdc.date.accessioned
Available in OPARU since2016-03-15T06:22:57Zdc.date.available
Year of creation2010dc.date.created
AbstractThe thesis is dedicated to RF-MEMS based components for fixed and adaptive millimetre-wave front-ends. It is focused on the realisation of components forming the "passive front-end" of RF-systems. This includes the antennas, the phase shifters, and the filters, but excludes all the active circuitry, such as the power amplifiers and mixers. Further, beyond the design of individual components, a large part of the work is concerned about the way the various circuits can be integrated at component level, but also at system level. Aside a first chapter providing an overview of the experimental techniques employed in the work, two kinds of components are principally addressed: the fixed and frequency-agile band-pass filters and the electrically steerable antennas. In the second chapter, band-pass filters micro-machined out of silicon are demonstrated. For these filters, a novel architecture is proposed, which makes possible their fabrication with a single low-cost micro-machining process: the KOH-wet etching of silicon. In a later section, an RF-MEMS-based tuning technique is proposed for these filters. Also, the chapter presents Ku-band fixed and tunable band-pass filters on ceramics. These filters are cavity resonator filters made out of LTCC according to the substrate-integrated technique. The chapter ends with an investigation into the temperature dependence of a cavity resonator processed in LTCC, and an actuation-free compensation technique is presented. The third chapter addresses phased array antennas. Three antennas are presented, where two are made electrically steerable by means of RF-MEMS phase shifters. The phase shifters are processed on silicon and they are integrated in a hybrid fashion onto the substrate of the antennas. One of these antennas is designed on LTCC for operation at Ka-band, and it is electrically steerable in the H-plane. For all three antennas also, the integration concepts are presented and the related measurement results are provided.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandard (Fassung vom 01.10.2008)dc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v2dc.rights.uri
KeywordPhased arraysdc.subject
KeywordTunable filtersdc.subject
Dewey Decimal GroupDDC 620 / Engineering & allied operationsdc.subject.ddc
LCSHMicroelectromechanical devicesdc.subject.lcsh
LCSHMillimeter wave devicesdc.subject.lcsh
LCSHPhase shift circuitsdc.subject.lcsh
TitleRF-MEMS based passive components and integration concepts for adaptive millimetre wave front-endsdc.title
Resource typeDissertationdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-1751dc.identifier.doi
PPN656520493dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-75639dc.identifier.urn
GNDMillimeterwellenschaltungdc.subject.gnd
FacultyFakultät für Ingenieurwissenschaften und Informatikuulm.affiliationGeneral
Date of activation2011-03-02T06:56:00Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
Shelfmark print versionZ: J-H 13.982; W: W-H 12.446uulm.shelfmark
DCMI TypeTextuulm.typeDCMI
VTS ID7563uulm.vtsID
CategoryPublikationenuulm.category
Bibliographyuulmuulm.bibliographie


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