Effect of frequency and temperature on the dielectric properties of abalone

The dielectric constant and loss factor of abalone were determined by the open-ended coaxial probe method in the frequency range from 300 to 3000MHz and temperature from 20 to 120℃.The dielectric constant and loss factor decreased with the increase of the frequency.While with the increase of temperature, the dielectric constant changed quadrially:first increasing and then decreasing.The loss factor increased with the increasing temperature.Predictive equations related to the dielectric properties of abalone was developed as a function of temperature at 915 and 2450MHz, and proved to be reasonable.The temperature had a negative correlation with the penetration depths at 915 and 2450MHz.