ANALYSIS TYPE / 05
differential-to-common mode · shield transfer · crosstalk
Overview
Analysing electromagnetic coupling along cable harnesses and wire bundles — evaluating differential-to-common mode conversion, shield transfer impedance, inter-wire crosstalk, and cable radiation to address the most frequent source of system-level EMC failures.
Deliverables
Key Aspects
Identifying impedance imbalances, asymmetric loads, and connector transitions that convert differential signal content to common mode current — the primary source of cable radiated emissions.
Evaluating cable shield effectiveness using transfer impedance models, comparing braided, foil, and combination shields for their performance over frequency and at connector terminations.
Computing inter-wire crosstalk in multi-conductor harnesses for automotive and aerospace applications — evaluating signal-to-power, signal-to-signal, and control-to-power coupling across bundle cross-sections.
Modelling cable assemblies as unintentional antennas and predicting their radiated emission levels, identifying cable routing, length, and termination changes that reduce emission without physical re-routing.
Connect with our EMI/EMC engineering team to discuss the right approach for your application.
