{"id":{"repo_id":"umkc","oai_identifier":"oai:mospace.umsystem.edu:10355/84192"},"canonical_url":"https://search.dev.ndltd.org/etd/umkc/oai:mospace.umsystem.edu:10355/84192","repository":{"repo_id":"umkc","name":"University of Missouri - Kansas City","base_url":"https://mospace.umsystem.edu/oai/request"},"display":{"title":"Wideband high-power transmission line pulse transformers","abstract":"Geometric transformers are often used in radar and communications systems to transition between signal driving and radiating elements that terminate in significantly different geometries with unity input/output impedance. This work demonstrates the design and construction process of a geometric transformer with comparison to simulation and prior art. The focus of this work is on the design, optimization, build and test results of a novel geometric transformer capable of transmitting kilovolt 100-picosecond pulses from a parallel plate geometry into a coaxial geometry, modeled after a transverse electromagnetic (TEM) cell. The transformer operates on a wide frequency bandwidth (.5-2 GHz) with minimal reflection or radiative loss (>1.5 dB loss across the frequency range for both in testing). Further, this work touches on a future project that faces similar challenges under different requirements, and describes how these projects compare in design, production, and outcome.","abstract_html":"Geometric transformers are often used in radar and communications systems to transition between signal driving and radiating elements that terminate in significantly different geometries with unity input/output impedance. This work demonstrates the design and construction process of a geometric transformer with comparison to simulation and prior art. The focus of this work is on the design, optimization, build and test results of a novel geometric transformer capable of transmitting kilovolt 100-picosecond pulses from a parallel plate geometry into a coaxial geometry, modeled after a transverse electromagnetic (TEM) cell. The transformer operates on a wide frequency bandwidth (.5-2 GHz) with minimal reflection or radiative loss (>1.5 dB loss across the frequency range for both in testing). Further, this work touches on a future project that faces similar challenges under different requirements, and describes how these projects compare in design, production, and outcome.","abstract_has_math":false,"creators":["Kovarik, James"],"institution":"University of Missouri--Kansas City","degree_name":"M.S. 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This work demonstrates the design and construction process of a geometric transformer with comparison to simulation and prior art. The focus of this work is on the design, optimization, build and test results of a novel geometric transformer capable of transmitting kilovolt 100-picosecond pulses from a parallel plate geometry into a coaxial geometry, modeled after a transverse electromagnetic (TEM) cell. The transformer operates on a wide frequency bandwidth (.5-2 GHz) with minimal reflection or radiative loss (>1.5 dB loss across the frequency range for both in testing). 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