Frequency bandwidth of patch type meta-surface with polarization conversion function

A meta-surface can reflect the incident wave with arbitrary reflection coefficient. This paper proposes a novel meta-surface which has polarization conversion function. A linearly polarized (LP) incident wave can be converted to a circularly polarized (CP) reflected wave by using a rectangular patches and the ground plane. In addition, the relationship between the frequency bandwidth and the structure are clarified. The maximum value of the frequency bandwidth is converged to approximately 87%.