Optimized Multiband Single-layer Frequency Selective Surface and Its Experimental Verification

This paper has developed a multiband single-layer frequency selective surface (FSS) designed by using the optimization technique (micro-genetic algorithm). The characteristics of the designed FSS are superior to those of the Fractal FSS in the close dual-band separation and to those of the convoluted double square loop FSS in the bandwidth. We design the FSS for transmitting L and S bands and reflecting Ku and Ka bands. The agreement between the calculated and measured transmission responses for the designed FSS proves the validity of the present method.