Modeling of data bus structures using numerical methods

The difficulties associated with the method of moments (MOM) analysis of a bus-type structure are analyzed. The bus structures are evaluated with round wire models. The MOM code MININEC was used for the majority of the analysis. The limitations of the moment method formulation are discussed, and the problem areas associated with the bus geometry are identified. The sensitivities with respect to wire radius, wire separation, and segment length are investigated. Nonphysical asymmetries in current due to segmentation are also discussed. Guidelines are presented for geometry and frequency restrictions necessary to maintain the accuracy of MOM predictions for the data bus structures.<
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