Frequency selective surfaces for microwave frequency band applications

We analyze periodic arrays of frequency selective surfaces (FSS_s) built from the split ring resonators (SRRs) and CSRRs. FSSs are two-dimensional periodic structures that behave like either passband or stop band filters in the microwave frequency band. SRRs are artificially created structures with nonmagnetic loops and small gaps between them. Using COMSOL Multi-physics, we investigate the transmission characteristics of such structures with variation of the physical parameters gap width, dielectric constant, gap separation, and incident angle. This analysis offers a new approach in the design of metamaterial based radio frequency(RF) devices.