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Title: (Dis)claiming whiteness ; Homer Plessy, Tiger Woods, and racially-tranformed parents
Creator: Woodfork, Joshua Carter
Date: 1999
Collection: Electronic Theses & Dissertations

Title: (I) Characterization of type 2 cytokine response to allergens in a mouse model of food allergy and (II) The effect of selected herbal supplements on allergen driven type 2 cytokine response by spleen cells from food allergic mice
Creator: Parvataneni, Sitaram
Date: 2007
Collection: Electronic Theses & Dissertations

Title: (Re)making sacred ground : American national memory and the memorialization of 9/11
Creator: Kolenic, Anthony James
Date: 2007
Collection: Electronic Theses & Dissertations

Title: 1-D simulation of HCCI engine performance using knock-integral ignition prediction with Wiebe function combustion modeling, and comparison to advanced SI engine performance
Creator: Huisjen, Andrew Michael
Date: 2010
Collection: Electronic Theses & Dissertations

Title: 1-ortho-tolyl-3-ethyl-4-methyl-5-pyrazolone
Creator: Timreck, Albert Edward
Date: 1947
Collection: Electronic Theses & Dissertations

Title: 15 - year performance of European black pine in north central United States
Creator: Wheeler, Nicholas Collins
Date: 1974
Collection: Electronic Theses & Dissertations

Title: 1963 Michigan aid to dependent children on the unemployed (ADCU̲) legislation controversy : an analysis of political strategy and press coverage
Creator: Fedewa, Stanley C.
Date: 1965
Collection: Electronic Theses & Dissertations

Title: 1993 quality assurance study for the Rapid City, South Dakota, Police Department
Creator: Lee, David A.
Date: 1994
Collection: Electronic Theses & Dissertations

Title: 1994 quality assurance survey for the Rapid City, South Dakota Police Department
Creator: Woythal, Jay Mathew
Date: 1995
Collection: Electronic Theses & Dissertations

Title: 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents in tissue samples from three species in the Denver metropolitan area
Creator: Kemler, Katherine K.
Date: 2000
Collection: Electronic Theses & Dissertations

Title: 2-4-6 trihydroxyphenyl alkyl ketones as flotation reagents for manganese dioxide
Creator: Patel, Ishwarbhai Ashabhai, 1926-
Date: 1951
Collection: Electronic Theses & Dissertations

Title: 2007 evaluation of the Michigan State University Extension Sugarbeet Advancement Program : a descriptive case study
Creator: ZumBrunnen, Mary Elizabeth
Date: 2009
Collection: Electronic Theses & Dissertations

Title: 238U/230Th isotope systematics of rhyolites from Long Valley, California
Creator: Baranowski, James
Date: 1977
Collection: Electronic Theses & Dissertations

Title: 3-dimensional model of the kinematics of the human spine
Creator: Chen, Tsang Yeou
Date: 1985
Collection: Electronic Theses & Dissertations

Title: 36-sample measurement system for doping and alloying trends in new thermoelectric materials
Creator: Loo, Sim Yean
Date: 2000
Collection: Electronic Theses & Dissertations

Title: 3D K9: using Quicktime VR to teach veterinary anatomy
Creator: Malinowski, Robert
Date: 2003
Collection: Electronic Theses & Dissertations

Title: 3D interactivity vs. 2D interactivity : using 3D technology for web navigation
Creator: Page, Jesse
Date: 2004
Collection: Electronic Theses & Dissertations

Title: 3D printed antennas : metalized plastic
Creator: Mohd Ghazali, Mohd Ifwat
Date: 2014
Collection: Electronic Theses & Dissertations
Description: This thesis introduces the use of 3D printed plastic structures for the fabrication of antenna structures. Use of 3D printing technology allows for a simple fabrication technique that is faster and low cost compared with traditional microfabrication approaches. Two Vivaldi antenna designs are studied first: i) a simple notch antenna with a radiating slot line cavity and ii) a corrugated Vivaldi with a partially covered cavity. The corrugations help increase the bandwidth and gain of the...
Show moreThis thesis introduces the use of 3D printed plastic structures for the fabrication of antenna structures. Use of 3D printing technology allows for a simple fabrication technique that is faster and low cost compared with traditional microfabrication approaches. Two Vivaldi antenna designs are studied first: i) a simple notch antenna with a radiating slot line cavity and ii) a corrugated Vivaldi with a partially covered cavity. The corrugations help increase the bandwidth and gain of the Vivaldi antenna. The antennas show an extremely wide bandwidth of approximately 13 GHz and have a gain maximum of approximately 12dB. Further modifications were made by adding bilateral pieces and dielectric focal lens at the radiating end. A larger bandwidth and higher gain was attained. The dielectric guiding structure in the aperture helps to further improve the gain both at the lower frequency and higher frequency regions. The integration of dielectrics in the antenna design is readily achieved using 3D printing. Apart from the above Vivaldi antenna designs, three other antenna designs were also studied. This includes a dielectric loaded monopole antenna, a patch antenna and a reconfigurable Lego-like antenna. Complex 3D antenna structures and novel antenna designs that use a combination of dielectric and metal regions are studied and these structures can readily be fabricated using 3D printing.
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