期刊论文

Yang, He-Lin

英文

Journal of Magnetism and Magnetic Materials

0304-8853

2011

323

5

607-610

10.1016/j.jmmm.2010.10.023

Attempting to analyze further its electric and magnetic resonance and where the charge accumulation actually occurs, we examined the field and current distribution at the magnetic resonance where the dual bands of negative refractive indexes occur. Fig. 3 shows the front-view surface current distribution for one unit cell at the inner (facing each other) metallic surfaces of the front and back slabs. We consider here the structure in propagation direction (z direction) and periodic conditions

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A kind of planar left-handed metamaterial (LHM) with unique configurations is demonstrated, which offers an approach in building dual-band negative-index materials. Simulated and experimental results predict two left-handed transmission bands near 11.1 and 14.6 GHz. Dual bands of negative refractive indexes are verified using the retrieval procedure. Field and current distribution at the dual magnetic resonance are also examined. The effective electromagnetic parameters show that by carefully adjusting dimensions of the unit cell, electric and magnetic resonances can be coexistent at some freq...