Design fabrication and test of an X-band dual polarized aperture-coupled reflectarray element for beam switching

Authors: IMAN ARYANIAN, ABDOLALI ABDIPOUR, GHOLAMREZA MORADI

Abstract: In this paper a dual polarized aperture-coupled reflectarray unit cell is designed, fabricated, and tested. The element is based on patches aperture-coupled to delay lines. This unit cell has the capability of switching the beam direction in two orthogonal polarizations using a PIN diode or MEMS switch by changing the length of the transmission line coupled to the patch. The proposed structure is used in the design of an X-band reflectarray antenna in two states having angles off broadside of 0$^{\circ}$ and 10$^{\circ}$.

Keywords: Aperture coupling, reconfigurable antennas, reflectarrays

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