Abstract
This paper considers a simple method for estimation of the dielectric constant of planar material in the time domain. The method estimates the time delay between the reflected waves from the front and back surfaces of the material located near the antenna in the chamber box. The time delay is used to estimate the dielectric constant. This method is applied for several materials and the results are compared with those obtained by the coaxial probe method. The comparison shows that the method can be used for rough estimation of the dielectric constant.
