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

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dc.contributor.supervisor Isleifson, Dustin (Electrical and Computer Engineering) en_US
dc.contributor.author Mansoori, Amirbahador
dc.date.accessioned 2021-06-15T20:14:45Z
dc.date.available 2021-06-15T20:14:45Z
dc.date.copyright 2021-05-26
dc.date.issued 2021 en_US
dc.date.submitted 2021-05-21T21:52:08Z en_US
dc.date.submitted 2021-05-26T16:27:28Z en_US
dc.identifier.citation Amirbahador 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, 2020 en_US
dc.identifier.citation Desmond 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, 2019 en_US
dc.identifier.citation Desmond, 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 2020 en_US
dc.identifier.uri http://hdl.handle.net/1993/35704
dc.description.abstract This 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.rights info:eu-repo/semantics/openAccess
dc.subject Short Back-Fire Antenna en_US
dc.subject Small Perturbation Model en_US
dc.subject SPM en_US
dc.subject NRCS en_US
dc.subject Normalized Radar Cross-Section en_US
dc.subject Backscattering en_US
dc.subject Dielectric Modelling en_US
dc.subject Dielectric Mixture Model en_US
dc.subject Sea Ice en_US
dc.subject Clean Sea Ice en_US
dc.subject Oil-Contaminated Sea Ice en_US
dc.subject Antenna Design en_US
dc.subject Arctic en_US
dc.subject C-band en_US
dc.subject Microwave en_US
dc.subject Remote Sensing en_US
dc.subject Microwave Remote Sensing en_US
dc.subject Arctic Remote Sensing en_US
dc.subject Oil en_US
dc.subject Regular Ship Diesel en_US
dc.subject Crude Oil en_US
dc.subject Marine Ship Diesel en_US
dc.subject Wideband antenna en_US
dc.subject Improved Realized Gain antenna en_US
dc.subject Waveguide fed antenna en_US
dc.subject Waveguide fed Short Back-Fire antenna en_US
dc.subject Remote Sensing Antenna en_US
dc.subject Arctic Technology en_US
dc.title Development of short back-fire antennas and electromagnetic modeling techniques for remote sensing of oil-contaminated sea ice en_US
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline Electrical and Computer Engineering en_US
dc.contributor.examiningcommittee Shafai, Lotfollah (Electrical and Computer Engineering) Ferguson, Philip (Mechanical Engineering) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2021 en_US

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