A Low-Pass Filter Design Based on Split-Ring Resonator with Defected Ground Structure

This paper explores an optimized low-pass filter which is based on the split-ring resonator (SRR) with a defected ground structure (DGS). By means of the two open stubs loaded on the main transmission line, the stop band of the filter can be expanded and the frequency selectivity of the filter can be improved. Thanks to the small size and simple construction, this type of filter can be widely applied in wireless communication fields.