A frequency selective surface for 2.25 GHz, WiMax and WLAN applications

In this paper, a band pass frequency selective surfaces has been proposed to enhance the performance of 2.25 GHz, WiMax and WLAN devices. The objective of this design to increase the received signal strength of 2.25 GHz, WiMax and WLAN devices. This FSS is used to enhance the three signals having resonant frequency as 2.25 GHz, 3.5 GHz and 5.75 GHz and attenuate the rest signals in 1GHz to 6.5 GHz frequency range. This FSS has been designed on the FR-4 dielectric substrate. FSS consist of a one square loops in front side and one swastik-like structure in back side of substrate.