Improved Design of Microstrip Low Pass Filter by Using Numerous Metamaterial Patterns

In this review work, the parameters of a stub-based Chebyshev third-order planar microwave low pass filter (LPF) were measured using a variety of patterns. When compared to a simple filter, the findings reveal that the response is better, with the quality factor and ripple size being the improved characteristics. This means that enhanced quality factor (56.421 to − 76.97851 dB/GHz) and reduced ripple size (− 2.53 to − 2.093353 dB) are recovered as information from the analyzed response, and this comparative analysis is performed not only with single patterns but with multiple patterns in various numbers and sizes at a certain distance. The complementary split-ring resonator (CSRR), which has negative permittivity and defected ground structure (DGS), which is a defective ground structure, is where the patterns employed.