Why decrease dielectric properties with increasing frequency?

Dielectric properties, such as permittivity, typically decrease with increasing frequency due to the inability of dipoles in the dielectric material to orient themselves quickly enough to keep pace with the rapidly changing electric field. At higher frequencies, the polarization mechanisms (like ionic, dipolar, or interfacial polarization) become less effective, leading to reduced energy storage capabilities. Additionally, dielectric losses can increase, further diminishing the effective dielectric response as frequency rises. Thus, the overall dielectric constant tends to decline with increasing frequency.