Dual-band SRR using CRLH TL-based elements

In this paper, a new dual-band split ring resonator based on composite right-/left-handed transmission line-based elements is proposed. The distributed elements within the resonator are patterned in the centre strip of a folded coplanar waveguide transmission line. The new elements which are deployed in a prototype transmission line-based inclusion provide a dual-band resonance behavior. The design procedure and theory behind the new inclusion are introduced. Simulated results agree well with the theoretical results.