Left handed metamaterial with ε = − ε0 and μ = − μ0 and some applications

A left handed metamaterial (LHM) with epsiv = - epsiv₀ and mu = - mu₀ is proposed and its properties are theoretically and numerically analyzed. The LHM is composed of ferrites to provide a negative permeability and a wire array to provide a negative permittivity. The parameter conditions of satisfying aforementioned properties are investigated. The analyzed results show that the LHM has a nearly perfect negative pass band with very small reflections and losses in the microwave frequencies and the negative pass band can be tuned by changing the applied magnetic field. This LHM can be applied to various areas such as microwave engineering areas. In this paper, the applications of the LHM including the microwave filter and phase shifter are discussed respectively.