Development of short back-fire antennas and electromagnetic modeling techniques for remote sensing of oil-contaminated sea ice

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dc.contributor.authorMansoori, Amirbahador
dc.contributor.examiningcommitteeShafai, Lotfollah (Electrical and Computer Engineering) Ferguson, Philip (Mechanical Engineering)en_US
dc.contributor.supervisorIsleifson, Dustin (Electrical and Computer Engineering)en_US
dc.date.accessioned2021-06-15T20:14:45Z
dc.date.available2021-06-15T20:14:45Z
dc.date.copyright2021-05-26
dc.date.issued2021en_US
dc.date.submitted2021-05-21T21:52:08Zen_US
dc.date.submitted2021-05-26T16:27:28Zen_US
dc.degree.disciplineElectrical and Computer Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractThis thesis presents research into microwave remote sensing technologies for Arctic Science applications. In the first part of my thesis, I created and verified procedures for measuring the dielectric of a small volume of oil with cavity resonator and dielectric probe techniques. I designed and fabricated a cavity resonator and utilized a dielectric probe to demonstrate the technique and to generate new measurement results for three types of oil products. The measurement results are needed in dielectric mixture modelling and simulations of the normalized radar cross-section (NRCS) of oil-contaminated sea ice. I utilized five existing dielectric mixture models and the measured dielectric constants of three types of oil to model both clean and oil-contaminated sea ice. I simulated and compared their NRCS (three different types of contamination with three different amounts). The simulation results showed that I could distinguish between the clean and oil-contaminated sea ice based on the NRCS magnitudes. The simulation results demonstrate that for higher incidence angles, distinguishing clean sea ice from oil-contaminated sea ice with VV polarization is easier than HH polarization. In the second part of my thesis, I designed C-band Short Back-fire antennas that can be used for remote sensing applications. I simulated and characterized six different designs of Short Back-Fire antennas. The first design, SBF-1, is an optimum case of the conventional SBF antenna. In SBF-2, I improved the realized gain and bandwidth of the first one by adding a cylindrical choke to the main reflector. In the third design, I filled the choke with Teflon. In the subsequent designs, I increased the bandwidth and realized gain of SBF-1 and SBF-2 by adding a ring beside the rim and by adding a choke to the rim. To validate the simulations, I fabricated and tested SBF-1 and SBF-2. The measurement results show good agreement between the simulations and the actual measurements.en_US
dc.description.noteOctober 2021en_US
dc.identifier.citationAmirbahador Mansoori, Dustin Isleifson, Durell Desmond, Gary Stern, “Development of Dielectric Measurement Techniques for Arctic Oil Spill Studies”, IEEE International Symposium on Antennas and Propagation and North American Radio Science, 2020en_US
dc.identifier.citationDesmond Durell, Thomas D Neusitzer, Marcos Lemes, Dustin Isleifson, Diana Saltymakova, Amirbahador Mansoori, David G Barber, Gary Stern, “Examining the Physical Interactions of Corn Oil (Medium Crude Oil Surrogate) in Sea Ice and its Potential for Chemical Partitioning within an Arctic Environment”, 42nd AMOP Technical Seminar on Environmental Contamination and Response, 2019en_US
dc.identifier.citationDesmond, D.S., Smith, A., Saltymakova, D., Wolfe, T., Snyder, N., Polcwiartek, K., Lemes, M., Hubert, C., Chavarriaga, M., Ellefson, E., Stone, M., Mansoori, A., Barber, D.G., Isleifson, D., and Stern, G.A. “Assessing the Potential for Photooxidation and Biodegradation of Crude Oil in Surficial Sea Ice and the Fate of Transformed Products”, In the Proceedings of Arctic Change 2020en_US
dc.identifier.urihttp://hdl.handle.net/1993/35704
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectShort Back-Fire Antennaen_US
dc.subjectSmall Perturbation Modelen_US
dc.subjectSPMen_US
dc.subjectNRCSen_US
dc.subjectNormalized Radar Cross-Sectionen_US
dc.subjectBackscatteringen_US
dc.subjectDielectric Modellingen_US
dc.subjectDielectric Mixture Modelen_US
dc.subjectSea Iceen_US
dc.subjectClean Sea Iceen_US
dc.subjectOil-Contaminated Sea Iceen_US
dc.subjectAntenna Designen_US
dc.subjectArcticen_US
dc.subjectC-banden_US
dc.subjectMicrowaveen_US
dc.subjectRemote Sensingen_US
dc.subjectMicrowave Remote Sensingen_US
dc.subjectArctic Remote Sensingen_US
dc.subjectOilen_US
dc.subjectRegular Ship Dieselen_US
dc.subjectCrude Oilen_US
dc.subjectMarine Ship Dieselen_US
dc.subjectWideband antennaen_US
dc.subjectImproved Realized Gain antennaen_US
dc.subjectWaveguide fed antennaen_US
dc.subjectWaveguide fed Short Back-Fire antennaen_US
dc.subjectRemote Sensing Antennaen_US
dc.subjectArctic Technologyen_US
dc.titleDevelopment of short back-fire antennas and electromagnetic modeling techniques for remote sensing of oil-contaminated sea iceen_US
dc.typemaster thesisen_US
local.subject.manitobayesen_US
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