Compact UWB frequency selective surface with high angular stability

Abstract

In this paper, a new ultra-wideband (UWB) stop-band frequency selective surface (FSS) is proposed. The frequency band, over which flat stop-band is achieved, covers the entire UWB band. The proposed FSS constitutes with compact size unit cells sandwiched between two dielectric substrates. In addition, the performance of the proposed FSS is stable over wide range of incident angles for TE and TM polarizations. Providing good candidate for UWB applications and an optimized solution for integration with compact broadband circuits and as reflectors for the UWB antennas.