Terminal Condition Dependency of Transmission Characteristics for High-speed Power Line Communication

In this paper, we studied on dependency of transmission characteristics to the differential mode impedance of the power line for power line communication with high frequency band from 2 MHz to 30 MHz. Real indoor wirings of the power line have various branch forms. We focused typical blanch model such as outlet blanch model that diverges in parallel, and composed this model. We calculated and compared transmission characteristic by the method of moment which is used for the electromagnetic field analysis. As the result, it is understood that the transmission loss and radiated emission characteristics of the power line depend on the differential mode impedance value.