SuperUser Account / Thursday, November 14, 2019 / Categories: Automotive EMC/EMI Compliance, EMC Component Level Radiated and Conductive Coupling Methods of Noise Coupling Coupling in cable harnesses, transmission lines, and PCB traces may occur via capacitive and inductive transfer modes. Capacitive coupling is predominant at higher frequencies as result of high impedance to ground.Inductive coupling between two currents within a closed loop system is predominant in low-series-impedance circuits and at low frequencies. Apart from the reactive transfer of RF energy, or interference, a resistive transfer may also happen through the voltage drop in a common reference path between two devices, circuits, or systems. A voltage drop across the common path caused by current flow in one circuit will appear as interference source signal. This interference current is propagated in a conducted manner along the transmission lines and is observed at the load terminal of adjacent circuits. Next Article Conductive Coupling Print 2754 Rate this article: 1.0 Tags: EMC EMI Noise Coupling Please login or register to post comments.