Design and measurement of a planar 9-way metamaterial power divider

A planar 9-way metamaterial power divider composed of positive refractive index (PRI) material with right-handed unit cells and zero refractive index (ZRI) material with left-handed unit cells is presented. A semi-circular interface is between PRI and ZRI materials. The infinite wavelength phenomenon in the ZRI material with an equal magnitude and phase distribution is experimentally verified via field and circuit measurements. They are shown in good agreement with simulation results.