3-D frequency selective surface

Abstract

Frequency Selective Surfaces (FSSs) are planar intermittent structures of identical cells that behave like channels to electromagnetic vitality. FSSs are widely used for protecting of non-ionizing radiation. They have been utilized to improve wireless networks, radar framework, and scientific research infrastructures. However, most of the research into FSSs has been in two dimensional periodic arrays of resonant structures, where a single layer FSS is known to suffer from poor selectivity and narrow bandwidth. Thus, contrasted with the customary 2-D FSSs at the same unit cell measure, the full recurrence of the 3-D structures is scaled down. Along these lines the unit cell size of the FSS is adequately lessened. Additionally, the recurrence reactions of the proposed 3-D FSSs have accomplished fantastic dependability as for TE and TM polarizations and various on edges.