Impact on Radiated Emission with EUT Mains Cable Termination by Balanced VHF-LISN

To investigate the impact of Alternating Current (AC) mains cable termination devices on the radiated emission measurement, the difference in maximum emission levels was compared among termination devices with no termination condition. For two types of Very High Frequency (VHF) - Line Impedance Stabilization Network (LISN), the necessity of considering the emission limit was raised due to the impact on radiated emission characteristics. Therefore, from the results of the Round Robin Test (RRT) held in 2019, the comb-generator and actual product data were assessed precisely to solve this issue. As a result, from the peak-level comparison, the balanced VHF-LISN for AC mains cable is suggested as the most preferred termination device based on the data of the comb generator and 19 actual product measurements in each test site.