A Triple Band Pass Frequency Selective Surface for the Intensification in the Performance of C and X Band Applications

Abstract

With the advancement in the wireless technologies where transmission of the microwave or radio frequency
wave signals gains attentions, predominantly in residential areas where the number of wireless connected
devices may increase exponentially. But due to several factors like path loss, propagation effects and
interference led to signal degradation. However, these bands suffer large attenuations, so a band pass
frequency selective surface has proposed in the paper that led to the intensification in the transmission of
C and X band signal to reduce the effect of path loss. A single sided Teflon substrate has integrated with the
square and three other elements which results in triple band (4.5 GHz, 7.5 GHz and 9.5 GHz) characteristics.
The single sided substrate dielectric constant is 2.1 with loss tangent 0.0002 and thickness 1.6mm. With
respect to different incident angles, offered structure had excellent band pass response as the structure is
symmetrical and polarization independent. For evaluating the performance, the CST Microwave computer
simulation is used.