Various embodiments provide a metamaterial split ring resonator. The metamaterial split ring resonator may include a first split ring including a first split at a first edge of the first split ring and a second split at a second edge of the first split ring. The first edge is opposite to the second edge. The metamaterial split ring resonator may further include a second split ring inside the first split ring and concentric with the first split ring, wherein the second split ring includes a third split at a first edge of the second split ring adjacent to the first edge of the first split ring. The first split ring includes a first pair of stubs extending inwardly from the first split, and the second split ring includes a second pair of stubs extending inwardly from the third split.
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