Show simple item record

dc.contributor.supervisorShafai, Cyrus (Electrical and Computer Engineering)en
dc.contributor.authorYip, Joe
dc.date.accessioned2008-01-18T15:05:26Z
dc.date.available2008-01-18T15:05:26Z
dc.date.issued2008-01-18T15:05:26Z
dc.identifier.urihttp://hdl.handle.net/1993/2997
dc.description.abstractA delay line phase shifter for the 30-70 GHz range is presented that uses an aluminum micro-ribbon array fabricated in the ground plane of a microstrip transmission line. Phase shift is achieved by changing the propagation velocity of an RF signal in the transmission line by controlling the effective permittivity of the substrate. This is done by actuating the micro-ribbons away from the substrate. This phase shifter has the benefits of analog phase shifts and high Figure of Merit. Simulations were done to model the micro-ribbon deflections, transmission line performance and phase shift. Arrays of 5, 10, and 20 μm wide micro-ribbons were fabricated and tested. At 40.80 GHz, the 20 μm wide micro-ribbons had a measured phase shift of 33º with an actuation voltage of 120 V. The corresponding Figure of Merit was a negative value indicating that there was no line loss due to ribbon deflection.en
dc.format.extent4251116 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMEMSen
dc.subjectmicro-ribbonen
dc.subjectmicrostripen
dc.subjectphaseshifteren
dc.titleMEMS micro-ribbons for integrated ground plane microstrip delay line phase shifteren
dc.typeinfo:eu-repo/semantics/masterThesis
dc.typemaster thesisen_US
dc.degree.disciplineElectrical and Computer Engineeringen_US
dc.contributor.examiningcommitteeBuchanan, Douglas (Electrical and Computer Engineering) Page, S.A. (Physics & Astronomy)en
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.noteFebruary 2008en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record