Gain Incorporated Split-Ring Resonator Structures for Active Metamaterials

Figure 1

(a) A simple design of the split-ring resonator (SRR). The metal ring provides the magnetic field response while the dielectric gap provides the capacitive response and together SRR demonstrates a distinct resonance response referred to as the artificial magnetic response. (b) The lump element equivalent circuit model for the SRR’s artificial magnetic response.

(a) Split-ring resonator

(b) Lump element equivalent circuit