A Circular Polarization Selective Surface Implemented on a Flexible Substrate

A new technique to realize a circular polarization selective surface (CPSS) implemented with Pierrot cells is proposed. This technique uses a folded flexible substrate, which enables the implementation of the 3D Pierrot cells on a single metal layer defined with precision printed circuit board techniques, without the need for metallized via holes. A left-hand CPSS is designed to illustrate the benefits of the proposed approach. For the fabricated prototype, the measured characteristics at normal incidence are in good agreement with simulations results obtained with HFSS. It is shown that compared to other Pierrot cell designs presented in the literature, this new approach simplifies the fabrication process while giving similar performance.