GA-Based Complex Image Green’S Functions for Solving Electromagnetic Coupling through Material-Coated Slots of Metal Plates

A new way is proposed to calculate the complex image Green’s functions for solving the electromagnetic(EM) coupling through material-coated slots in metal plates, based on Genetic Algorithm(GA). This method removes the cumbersome steps of spectral-sampling in the conventional approaches. The proposed method is validated by the numerical Sommerfeld Integral and can characterize the EM penetration of the structure.