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dc.contributor.supervisor Shafai, Cyrus (Electrical and Computer Engineering) en
dc.contributor.author Yip, Joe
dc.date.accessioned 2008-01-18T15:05:26Z
dc.date.available 2008-01-18T15:05:26Z
dc.date.issued 2008-01-18T15:05:26Z
dc.identifier.uri http://hdl.handle.net/1993/2997
dc.description.abstract A 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.extent 4251116 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject MEMS en
dc.subject micro-ribbon en
dc.subject microstrip en
dc.subject phaseshifter en
dc.title MEMS micro-ribbons for integrated ground plane microstrip delay line phase shifter en
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline Electrical and Computer Engineering en
dc.contributor.examiningcommittee Buchanan, Douglas (Electrical and Computer Engineering) Page, S.A. (Physics & Astronomy) en
dc.degree.level Master of Science (M.Sc.) en
dc.description.note February 2008 en


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