Parametric Analysis of a Dual Band Polarized Frequency Selective Surface

A non-symmetrical single-layer frequency selective surface (FSS), which exhibits a highly stable response to incidence up to 45° is proposed for filtering applications. The structure consists of a set of three dipoles grouped in an "U"-like shape on the same side of an FR4 substrate. A parametric analysis concerning the frequency response in function of the angle of incidence is reported. The structure exhibits a dual band-stop response dependent on the polarization of the incident wave, so it can be tailored to achieve a polarizer.