The unit cell configuration of the MS is depicted in Fig. 1. The metallic pieces (in yellow) are etched on the top surface of a dielectric substrate. The TC-UAJC element consists of two orthogonal, bent-arm capacitively-loaded-strips. They are tuned for the desired operating frequencies. These arm segments provide inductance; the gaps between the extremities of its bent arms provide capacitance.Figure 1Top view of the MS unit cell geometry. The optimized unit cell dimensions for the MS are: w = 0.2 mm, Hsub = 0.254 mm, g1 = 1.5 mm, g2 = 0.1 mm, L1 = 4.8 mm, L2 = 3.0 mm, L3 = 0.35 mm, L4 = 0.4 mm, L5 = 0.15 mm, L6 = 0.3 mm, and r1 = 1.0 mm.