Abstract
Abstract. An alternative design of left-handed (LH) metamaterial (MTM) for waveguide configurations is pre-sentedwithsensorandabsorberapplications.TheLHstructureisbasedontwoidenticalcircularringresonatorsconnected with a wire strip. Both simulation and experimental results show that the planar MTM has an LHresonance at ∼9.9 GHz. Surface current and magnetic field distributions at the resonance are also presentedto show the LH behavior of the structure in detail. In addition, a parametric study based on the gap size of thestructure is also provided in order to present the dependency of the LH resonance. Next, the sensing process ispresented with respect to the thickness, position, and dielectric constant variations of the superstrate layerlocated in front of the material surface. Finally, the absorption application of the structure in X-band isshown, and the results show that the absorber behaves as a perfect absorber with an absorption rate of99.99%. As a result, the proposed structure can be used in many MTM applications, such as sensor, absorber,and soon.
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