Study and modeling of T and L shaped resonators for UWB band pass filter

In this paper, the T and L shaped resonators are considered for the design of UWB band pass filter which operates at the center frequency of 5 GHz. Unlike any earlier work, we propose a novel analytical performance study of T and L shaped resonators that investigates the relationship between the input admittance of both resonators and the electrical lengths. Furthermore, the simulations are carried out using Matlab® as well as ADS™ Software (Momentum). In this work, bandstop filter loaded with two T, L and mixed open stubs, are proposed to design compact UWB band pass filter. Three topology of UWB bandpass filter are presented and comparison study between the performances of these structures is made.