Performance improvement of metamaterial coplanar waveguide filter using horizontal rectangular SRRs

In this paper, we present a metamaterial coplanar waveguide (CPW) filter with performance improvement utilizing horizontal rectangular split ring resonators (SRRs). The filter is designed for S-Band frequency operation of 2.3 GHz allowing application in many microwave communication systems. We study S-parameter results and find that improvement of insertion loss and bandwidth can be obtained by making horizontal rectangular SRRs. Both simulation and experiment has been done to show performance improvement of the proposed filter. Further analysis on surface current density is presented to observe the coupling effect between CPW to SRRs.