Microwave and Optical Technology Letters · 2009 · 34 citations · 12 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringSurface EngineeringAntenna DesignAntenna DirectivityDielectricsMicrostrip AntennasMicrowave AntennasPlanar AntennasDipole AntennasDirectivityFrequency-selective AntennasMicrostrip Antenna DesignMicrostrip Patch AntennasPatch Antennas
Abstract In this article, we present the results of a comparative study of three different types of superstrates used to enhance the directivity of a microstrip patch antenna. The three superstrates are frequency selective surface (FSS) with dipole elements; a dielectric slab; and a double negative (DNG) slab. We find that microstrip antennas (MPAs) covered either by an FSS or a plain dielectric slab superstrate provide higher directivities than that realized by using a DNG superstrate. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 327–331, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24898
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Composite Medium with Simultaneously Negative Permeability and Permittivity
David R. Smith, Willie J. Padilla, D. C. Vier et al. · Physical Review Letters · 2000 · 8.7K citations · Full text