HMSIW Miniaturized Bandpass Filter Loaded with Two Elliptic Complementary Split-Ring Resonators for S-Band Applications

In this paper, a new technique for bandpass filter minimization is presented. This technique uses ellipsoidal-shaped complementary split-ring resonators (ECSRR) loaded onto a half-mode substrate-integrated waveguide (HMSIW) structure. One ECSRR is loaded into the upper conductive layer while the other is loaded into the lower one. A comparison is made between the simulation results of a filter with one ECSRR and a filter with the proposed new technique. The efficiency of using the additional ECSRR is shown, and the filter design for both cases performed well. Moreover, the results are validated using two different simulation software. The proposed device has many possible applications in modern communication systems and upcoming communications innovations.