Radiated emission analysis of wires

In order to effectively suppress the radiated interference from wires during the EMC design, it is significant to predict the strongest frequency point of radiated emission. Based on the former research, this paper simplifies the formula of differential-mode current radiation model and common-mode current radiation model, defines the concept of radiation ratio between differential-mode and common-mode, deduces the computational formulas of radiation ration between differential-mode and common-mode, and explains its meaning and purpose by examples.