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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/32093

Title: Potential advantages of hexagonal-shaped over square-shaped unit-cells metallizations regarding the angular stability of artificial magnetic
Author(s): Cos Gómez, María Elena de
Las Heras Andrés, Fernando Luis
Issue date: Apr-2014
Publisher: IEEE
Publisher version: http://dx.doi.org/10.1109/EuCAP.2014.6902377
Format extent: p. 2684-2688
Abstract: The potential advantages of using hexagonal-shaped unit-cell metallizations instead of square-shaped ones to enhance the angular stability of Artificial Magnetic Conductors are studied based on simple patch and loop geometries. For a specific resonance frequency and a given dielectric substrate, it is shown that the angular stability is enhanced when increasing the gap distance g from the metallization to the edge of the unit-cell from a certain value, while maintaining suitable operating bandwidth. This effect is observed for both patch-based and loop-based unit-cells and is even more noticeable for hexagonal-shaped metallization. A simplified equivalent circuit model for the unit-cells under study is used to give an insight on the observed behavior. A prototype of the hexagonal-shaped loop-based unit-cell for g=0.9mm has been fabricated in order to experimentally characterize its angular stability in an anechoic chamber, since it is the most stable of the ones under study
URI: http://hdl.handle.net/10651/32093
Sponsored: This work has been supported by the Ministerio de Economía y Competitividad of Spain/FEDER under projects TEC2011-24492 (iScat) and CONSOLIDER-INGENIO CSD2008-00068 (TERASENSE) and by the European Union 7th F. P. under project ICT-2011-9 600849 (INSIDDE)
Appears in Collections:Ponencias, Discursos y Conferencias

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