A single substrate layer double metallic plane frequency
selective surface (FSS) is designed with miniaturized electrical
elements and two tunable pass-bands enabling Wireless Local Area
Network applications. Each FSS periodic cell consists of a metallic
square loop on the top metal layer and its complementary etched on
the bottom metal layer separated by a thin dielectric layer. This
designed FSS provides two tunable transmission bands. For
predicting the frequency selective characteristics of the designed
FSS an equivalent electric circuit model is also presented. To satisfy
the needed requirements for Wireless Local Area Network
(WLAN) applications the designed structure is optimized. Due to
symmetrical nature of the design, the FSS is insensitive to
variations of RF incidence angle for 90° (degree) rotations of the
FSS. Simulated theoretical investigations are done by Ansoft
Designer® software. Experimental investigation is performed using
standard microwave test bench.
