Spectral domain approach to 2D-modelling of open planar structures with thick lossy conductors

Real planar structures, in contrast to ideal ones, involve lossy conductors of finite thickness even when neglecting dielectric losses: these characteristics play a fundamental role in MMIC interconnecting lines. A full-wave approach to the modelling of their dispersion characteristics is introduced, suitable for open structures. The method is a continuous spectral domain formulation of the generalised transverse resonance-diffraction (G-TRD). As the standard G-TRD, its open counterpart could also be used to model linear active devices.