Fig. 4

The effect of elements density and dielectric loss on properties of the complete material. (a) The red curve represents the variation of resonant frequency with unit length which is corresponding to the left vertical axis. The resonant frequency exhibits slight frequency shift near 11.6 ~ 11.7 GHz. The blue curve represents the variation of normalized peak value of permeability with unit length which is corresponding to the right vertical axis. The amplitude of permeability attenuates as unit length increases; (b) The red curve represents the resonant frequency, which is nearly constant with dielectric loss tangent increasing. The blue curve represents the normalized peak value of permeability, which decreases significantly with dielectric loss tangent increasing.