Multilayer equivalent medium method for conical lossy medium

Based on the S-parameter inversion method, the equivalent dielectric constant model of single-layer lossy medium is established by obtaining the relationship between area ratio and equivalent dielectric constant in the case of single-layer. Then the conical lossy medium is treated as a layered impedance model. Through cascade and combined with the input impedance of the transmission line, the reflection level of the conical lossy medium is basically consistent with the full wave simulation results.