Abstract

Left-handed metamaterials (LHMs) are specially designed composite structures that show negative values of effective permittivity (e eff ) and effective permeability (μ eff ) over a common frequency band [1]. It is well-known that obtaining negative values of e eff over quite wide frequency bands is possible with the use of periodic thin wire arrays [2]. However, μ-negative (MNG) regions can be realized over relatively narrow frequency bands due to the nature of magnetic resonator structures that are used to obtain negative μ eff values. This situation limits the use of LHMs in broadband applications [3, 4].

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