We have investigated the defect effect in three-dimensional (3-D) left-handed metamaterials, consisting of an array of repeated unit cells of copper wires and hexagon split ring resonators (SRRs) on strips of standard circuit board material. By measuring the X-band transmission through this metamaterial with different point- and linear-defected SRRs, we find that the resonance frequency, its value and passband of transmission peaks, changes markedly. It is suggested that such tunable left-handed properties may arise from the symmetry breaking of SRRs in the metamaterials.
|Original language||English (US)|
|Number of pages||6|
|Journal||Wuli Xuebao/Acta Physica Sinica|
|State||Published - Apr 1 2005|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)