Fundamental Study on Reflection Property of Radiated Noise against Ground Floor in Semi-Anechoic Chamber for EMC Test of Inverter

Radiated electromagnetic (EM) noise caused by fast-changing voltage and currents is one of the important issues for developing inverters. However, the complex structure of the inverter made it difficult to investigate its radiated EM noise. The source part, radiation part, and radiation property should be considered to predict the radiated EM noise of the inverter unit. This paper deals with the polarization and reflection properties of the simple dipole model based on EM theory and experimental results in the semi-anechoic chamber to explain the radiation property of EM noise from the inverter unit.