Beam-scanning improvement of reflectarrays using single-layered sub-wavelength elements

Abstract

This paper studies the use of double concentric circular ring elements arranged in a sub-wavelength grid on a single layer of substrate, in an effort to enhance the beamscanning capability of reflectarrays. The work is carried out at 10 GHz on a 405mm×405mm aperture. In addition to a broad gain bandwidth, the reflectarray with a sub-wavelength grid… (More)

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