  Intelligent reflecting surfaces (IRS) are valuable tools for enhancing the
intelligence of the propagation environment. They have the ability to direct EM
Waves to a specific user through beamforming. A significant number of passive
elements are integrated into metasurfaces, allowing for their incorporation
onto various surfaces such as walls and buildings. In certain situations,
metasurfaces may need to be installed on surfaces that are not flat, such as
surfaces with curves or surfaces with two sides. In this work, a unit cell with
three polarization modes, consisting of absorption, reflection, and a 1-bit
phase shift, is designed and investigated. The unit cell in the nonplanar
metasurface is composed of two vertical surfaces. A mathematical model is used
to analyze two vertically-faced metasurfaces. The results include S parameter
values and full structure. It is demonstrated that both absorption reflection
mode and phase shift mode are achieved within a specific frequency band. The
simulations demonstrate that an appropriate absorption level, reaching -10 dB,
is achieved in absorption mode. In reflection mode, a 180-degree phase shift is
achieved within the same frequency band. Reports on the radiation pattern of
two vertically faced structures indicate that there is no quantized beam when
there is a one-bit phase shift.
