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Design of a Reconfigurable Reflectarray Unit Cell for Wide Angle Beam-Steering Radar Applications

  • Francesca Venneri
  • Sandra Costanzo
  • Giuseppe Di Massa
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 206)

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.

Keywords

Reflectarrays phased arrays radar antennas 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Francesca Venneri
    • 1
  • Sandra Costanzo
    • 1
  • Giuseppe Di Massa
    • 1
  1. 1.DIMESUniversity of CalabriaRendeItaly

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