What is the impact of the skin effect of winding conductors on common mode inductance at a frequency of 100MHz?

The skin effect causes current to concentrate on the surface of the conductor, reducing the effective conductive cross-sectional area. This leads to a sharp increase in the AC resistance of the winding (resistance is proportional to the square root of frequency). This increases the high-frequency loss (copper loss) of the winding and reduces the Q value of the common-mode inductance. At the same time, the actual impedance of the winding decreases at high frequencies, which may weaken the suppression capability (impedance value) of the common-mode inductance against common-mode interference near 100MHz, affecting the filtering effect.