EM coupling analysis between windscreen antennas and power cables in electric vehicles

摘要

The electromagnetic coupling between power cables and windscreen antennas installed in electric cars is estimated using the cable analysis methods. Two methods (MTL and combined MoM/MTL) for cable coupling analysis are discussed in terms of theoretical background and validated with the radiation configuration of a simple cable. To observe the EMI of the radiated power from power cables, the windscreen antenna is designed in a rear window of the electric vehicle and the power cable is placed to run from a battery to an electric motor. The obtained results indicate that the coupled power's intensity to the windscreen antennas depends on the shielding structure of the power cable.