A full-wave analysis of shielded microstrip line-to-line transitions

A rigorous procedure is used to analyze several microstrip line-to-line transitions in a shielded multilayer structure. The transitions studied include edge-coupled lines, overlay-coupled lines, and coupled-to-single lines. A power conservation check based on a rigorous Poynting vector analysis is used to determine the accuracy of the numerical convergence. The results of power distributions and coupling coefficients of the line-to-line transitions are studied parametrically to identify the properties and applications of each transition.<>