Abstract
A reconfigurable aperture-coupled reflectarray element is proposed for the realization of beam steering antennas, suitable for radar applications. Each reflectarray element is coupled to a microstrip line, which is loaded by a single varactor diode acting as a phase shifter element, thus providing a continuously variable reflection phase. A reduced size reflectarray unit cell is properly designed in order to extend the antenna beam scanning capabilities within a wide angular region, but avoiding the occurrence of undesired grating lobes. The radiating structure is properly optimized to obtain a full phase tuning range at the frequency of 11.5 GHz, thus assuring a good agility and accuracy in the reconfiguration of the reflectarray radiation pattern.
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Venneri, F., Costanzo, S., Di Massa, G. (2013). Design of a Reconfigurable Reflectarray Unit Cell for Wide Angle Beam-Steering Radar Applications. In: Rocha, Á., Correia, A., Wilson, T., Stroetmann, K. (eds) Advances in Information Systems and Technologies. Advances in Intelligent Systems and Computing, vol 206. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36981-0_95
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DOI: https://doi.org/10.1007/978-3-642-36981-0_95
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