A Fully Metallic 3-D mmWave Reflectarray With Independent Polarization Steering Control

This work presents the complete design process of a 3-D fully metallic reflectarray. The structure is composed of two unit cells with resonators in the z-direction that are phase-shifted 180° and distributed in the
$x$
–
$y$
-direction. Here will be shown how those unit cells have been designed and how we determine their distribution. Furthermore, a tolerance analysis is carried out to obtain a prototype that is robust to manufacturing imperfections. Lastly, that prototype is measured to verify the results.