Dual-band split-ring resonator using composite right-/left-handed coplanar waveguide transmission line-based elements

In this paper, a new dual-band split ring resonator based on frequency-controlled-response distributed elements is proposed. The response of the new inclusion is controlled using special composite right-/left-handed transmission line-based elements patterned in the centre strip of a folded coplanar waveguide line. These new reactive elements are deployed into a transmission line-based split ring resonator inclusion in order to have the dual-band resonance. The design procedure and theory behind the new inclusion is introduced. Simulated results agree well with the theoretical results.