Fast full-wave analysis of multistrip transmission lines based on MPIE andcomplex image theory

The mixed-potential electric-held integral equation is used in conjunction with the Galerkin's method and complex image theory for analyzing a transmi ssion line with multiple strips embedded in different layers of a multilaye red uniaxially anisotropic dielectric substrate. The two-dimensional Green' s functions for the scalar and vector potentials are analytically obtained in the space domain due to the approximation of its spectral-domain version with complex images, thus avoiding lengthy numerical evaluations. Double i ntegrals involved in the computation of Galerkin's matrix entries are quasi -analytically carried out for the chosen basis functions, which are well su ited to the problem.