ABSTRACT
Mutual ElectroMagnetic (EM) coupling effects between microstrip elements have been intensively studied in the real-Frequency Domain. In this category, two main approaches can be distinguished. The first one is based on the concept of reaction combined with the cavity model and its description in terms of the eigenfunction field expansion. The second approach is somewhat more general and relies on a full wave solution via the method of moments. Despite the fact that high-speed digital circuits inherently operate in Time-Domain (TD), the corresponding TD analysis, that would shed light on the mutual interaction of parallel-plate radiators, is very rare in the literature on the subject. An interesting application of the introduced methodology is the design of intraand inter-chip wireless interconnections for which the TD EM coupling is primarily a desired phenomenon. For the sake of completeness, the starting reciprocity-based contour-integral formulation for the TD-CIM analysis of a single planar circuit.
