The need of transport interoperability in Europe is a relevant issue nowadays. Particular interest is given to the signaling systems. The TEN-T project focuses one of its workpackages on "EMC Axle Counter Validation." This work developed in the frame of the TEN-T project develops a procedure to assess the frequency spectrum of the magnitude of the magnetic field, due to the traction current, at the track level. Full-wave 3-D numerical models are developed to predict the field values. The measuring system is previously tested and then used for a measurement campaign. Results are reported in terms of tables and frequency spectra.
This paper presents research extending the feature selective validation (FSV) method to quantitatively compare multiple datasets. The analytic hierarchy process is introduced to weight different FSV results when comparison is conducted by comparing multiple numerical results with their referencing counterparts. Only pairwise comparisons are required which simplify the process of comprehensive validation. The efficiency of this approach is demonstrated by the validation of a simplified crosstalk model. Index Terms-Analytic hierarchy process, comprehensive validation, crosstalk, equivalent cable bundle method, feature selective validation.
0018-9375
This paper presents an application of electromagnetic band-gap (EBG) structures in printed circuit boards (PCB) for power plane noise reduction in the band of high speed digital signals at a data rate of 5 Gbps. The typical EBG geometry that covers entirely the PCB surface is replaced by size-reduced EBG areas to minimize signal integrity problems associated to interconnects referenced to the EBG patterned plane. Several small EBGs are placed to isolate three ICs that are supplied with the same voltage level, thus creating three areas surrounding the ICs. Furthermore the EBGs are designed to allow the same voltage regular module to supply the three ICs. This paper presents a comprehensive analysis of the advantages in using the planar EBG structures, and offers indications to overcome the disadvantages in using the EBGs i.e. IR-Drop for the static current supply, broken reference for high speed signal traces.
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