Development of Reconfigurable Band Stop Filter Using Metamaterial for WLAN Application

In Wireless communication system microwave filter is most important device for pass the required band and reject the unwanted frequency. Metamaterial having important property to drastically change the electrical property parameter with reduction in size. In this proposed design simulate and fabricate reconfigurable filter using left hand transmission microstrip planer line loaded with modified hexagonal shape metamaterial cell for single and dual frequency in S Band. The simulated result obtained band stop filter with good result parameters like insertion loss, return loss at 2.44 and 3.65 GHz according IEEE 802.11 WLAN band Application. The proposed design of band stop filter provide accurate rejection with good selectivity used in rf transmitter receiver design for WLAN application and also used for multiservice in radio application for S band.