Reflection of the transitional electromagnetic wave by inhomogeneous ionized media having a peak of electron density

The reflection coefficient of an inhomogeneous ionized medium having a peak in electron density is analysed. The result shows the existence of peak in fluences for the phase term of non-peak linearly varying electron density i n the medium. The characteristic of the reflection coefficient phase delay versus frequency is related to the electron density at a peak point and the position of the electron peak. Using this theory we can obtain the electro n density distribution map in the inhomogeneous ionized medium. To verify t he theory the reflection coefficient is compared with the results from the finite difference time domain method, both results give a good agreement.