Supershaped complementary split-ring resonators

This paper investigates the possibility of using complementary split ring resonators based on Gielis transformation as basic elements for the design of microwave filters implemented in planar technology. From the electromagnetic simulation of these structures, suitable equivalent circuit models are extracted and analyzed. Physical prototypes are fabricated and tested for design validation. The study confirms that the adoption of supershaped geometries enables the synthesis of very compact microwave filters.