Generalized Transition Matrix for a Multilayered Scatterer With Arbitrary Interfaces

A numerical method is presented to evaluate the electromagnetic characteristics of a multilayered scatterer with arbitrary interfaces. By using Huygens principle, each interface is modeled with a generalized two-port device. A generalized transfer matrix is introduced to characterize the interface. Each homogeneous layer between two interfaces is modeled with a transmission line. The multilayered scatterer is analyzed using cascaded network techniques. A generalized transition matrix is defined on the outermost surface of the scatterer, which relates the rotated tangential scattered field components to the rotated tangential incident field components directly. Numerical results of multilayered scatterers with arbitrarily-shaped interfaces are provided to show that this method is effective.