Modeling and correlation of radiated emissions generated in a fully anechoic chamber and at an OATS

In this paper, the authors present a detailed modeling method for the correlation of radiated emissions generated in a fully anechoic chamber and at an open area test site (OATS), in which reflections by all the six absorber lined chamber surfaces are calculated. In addition, the near field characteristics of the emission source as well as the influence of oblique wave incident angle on the return loss are also taken into account. Validated by experimental test results, the model is then used to study and improve the correlation for emission sources positioned near to the floor