Figure 3
From: Characterizing the dielectric properties of carbon fiber at different processing stages

The contour map determines the relative dielectric constant and the loss tangent. Two categories of isolines are obtained from HFSS simulation. Iso-resonant frequency lines and iso-Q-factor lines are plotted with dashed lines. From the measured data as shown in Table 1, we can uniquely determine the relative dielectric constant and the loss tangent as marked in the figure and listed in Table 2.