Browsing by Author "Kristoffersen, Stein"
Now showing items 1-6 of 6
-
3-D Printed Monolithic GRIN Dielectric-Loaded Double-Ridged Horn Antennas
Hoel, Karina Vieira; Ignatenko, Maxim; Kristoffersen, Stein; Lier, Erik; Filipovic, Dejan (2019-09-06)Monolithic integration of 3-D printed gradient index (GRIN) dielectric loading with a double-ridged rectangular horn standard gain horn (SGH) and its impact on antenna performance are demonstrated. Results show that the ... -
3D printed metamaterial lenses for microwave antennas
Kristoffersen, Stein; Hoel, Karina Vieira (2017-03-01)This report presents the results from a study initialized and financed by «kompetanseområde Materialteknologi» at the Norwegian Defence Research Establishment (FFI). It is an exploratory study on metamaterials, and the ... -
Challenges 3D Printing Microwave Components
Hoel, Karina Vieira; Kristoffersen, Stein (2017) -
Characterization of Variable Density 3D Printed Materials for Broadband GRIN Lenses
Hoel, Karina Vieira; Kristoffersen, Stein (2017)In this work we design, simulate, manufacture and measure blocks made of variable density plastic. The density is controlled through varying the size of small cubes at the intersections of a fine grid. This structure is ... -
Prosjekt 1013 Vindkraftutbyggingens påvirkning på Forsvarets elektromagnetiske systemet (VINDKRAFT) - sluttrapport
Meland, Bente Jensløkken; Øhra, Hans; Høye, Gudrun; Nilssen, Eivind Bergh; Søderblom, Morten; Mjanger, Morten; Otnes, Roald; Kristoffersen, Stein; Sparr, Trygve; Tollisen, Steffen; Storhaug (2007)Vindkraftutbyggingen er i full gang – også i Norge. Det har gjennom studier og feltforsøk i flere land vist seg at vindmøller har innvirkning på ulike elektromagnetiske systemer. Dette kommer av at vindmøllene er store, ... -
Wind Turbines and Electromagnetic Systems (WTES) - software documentation
Meland, Bente Jensløkken; Nilssen, Eivind Bergh; Høye, Gudrun; Mjanger, Morten; Kristoffersen, Stein (2007)This report contains a description of the software developed by the FFI-project 1013 “Effekt av vindkraftutbygging på radiosamband og radar (VINDKRAFT)” (The effect of windmill development on telecommunication and ...