Validation of a Physical-Based Model for a Spacewire Cable

This paper focuses on the development and the experimental validation of a physical-based model for the SpaceWire (SpW) cable (Variant 01) terminated by two micro D-type connectors. The model for the SpW cable relies on the frequency-dependent per-unit-length parameters computed from the available information of its cross-section and materials via a 2D simulation. On the other hand, the D-type connector model is obtained from the simulation results provided by its 3D representation in CST MICROWAVE STUDIO. The two models are then combined together and implemented in HSPICE by means of their circuit equivalents. The accuracy of the proposed models is then experimentally validated by considering the scattering parameters measured via an ad-hoc measurement setup.