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. In this paper, we present a new UWB CPW low pass filter structure by using periodic elements. The originality of this work is to develop a neFigure 4 showsw UWB LPF structure which is compact, miniature, and easy for fabrication. The validated LPF is a compact planar filter easy to associate with others microwave planar circuits, having a large band pass and a large rejection band. The final circuit is simulated and optimized by using the electromagnetic solver ADS (Advanced Design System). After many series of optimizations, we have validated the final circuit into simulation by using different optimization methods taking into account a high density of meshing in order to cover the whole circuit. The simulated LPF circuit shows good results in term of matching input impedance and insertion loss with a cut-off frequency of 6.5GHz. The entire area of the proposed LPF is 16x40 mm.

A Novel Periodic CPW UWB Low Pass Filter With Large Rejected Band