Design Of Triple Band Pass Filters Using Three-Coupled Finline And Metamaterials

This paper presents a new concept of a triple band pass filters with three parallel coupled finline structure and Metamaterials. The design of third order bandpass filter, having center frequency of 10 GHz with fractional bandwidth of 20 % is simulated in High Frequency Structure Simulator (HFSS). A design graph is presented here for symmetric three unilateral finline structures to design wide bandpass filter parameters like length (l), width (w) and spacing(s) between finlines. This wide band pass filter is converted in to triple band pass filter with Metamaterials i.e. (Split Ring Resonators) on the other side of this filter structure substrate is designed and simulated with HFSS