X-band low phase noise mmic vco & high power mmic spdt design

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buir.advisorÖzbay, Ekmel
dc.contributor.authorOsmanoğlu, Sinan
dc.date.accessioned2016-07-01T11:10:18Z
dc.date.available2016-07-01T11:10:18Z
dc.date.issued2014
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionCataloged from PDF version of article.en_US
dc.description.abstractGenerally the tuning bandwidth (BW) of a VCO is smaller than the tuning BW of the resonant circuit itself. Using proper components with right topology can handle this problem. In order to overcome this problem and improve the tuning BW of the VCO, common-base inductive feedback topology with Gallium Arsenide (GaAs) Heterojunction Bipolar Transistor (HBT) is used and an optimized topology for tank circuit is selected to minimize the effect of bandwidth limiting components. Designed VCO with this topology achived -117 dBc/Hz at 1 MHz offset phase noise with 9-13 dBm output power between 8.8-11.4 GHz band. Second part of the thesis composed of Single Pole Double Throw (SPDT) RF Switch design. From mesa resistors to SPDT fabrication, everything is fabricated using Bilkent University NANOTAM Gallium Nitride (GaN) on Silicon Carbide (SiC) process. Switching HEMTs are fabricated to generate a model to design SPDTs and the final design works between DC-12 GHz with less than 1.4 dB insertion loss (IL), -20 dB isolation and 14.5 dB return loss (RL) at worst case. The power handling of the switches are better than 40 dBm at output with 0.2 dB compression, which is measured with continuous wave (CW) signal at 10 GHz.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityOsmanoğlu, Sinanen_US
dc.format.extentxiii, 75 leaves, tables, illus, graphicsen_US
dc.identifier.itemidB147466
dc.identifier.urihttp://hdl.handle.net/11693/29998
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMMICen_US
dc.subjectVCOen_US
dc.subjectPhase Noiseen_US
dc.subjectSPDTen_US
dc.subjectGaAsen_US
dc.subjectGaNen_US
dc.subjectCPWen_US
dc.subjectHEMTen_US
dc.subjectHBTen_US
dc.subject.lccTK7872.O7 O86 2014en_US
dc.subject.lcshOscillators, Microwave Design and construction.en_US
dc.titleX-band low phase noise mmic vco & high power mmic spdt designen_US
dc.typeThesisen_US

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Dept. of Electrical and Electronics Engineering - Master's degree