A tridimensional radiated emission model based on an improved near field scan technique

This paper presents a tridimensional radiated emission modeling approach based on near field measured data. The proposed model is a set of equivalent sources distributed on a five surfaces of a volume surrounding the device under test; tangential electromagnetic cartographies are used to build the model. Therefore, a tridimensional near field measurement technique has been set up and the near field test bench has been automated to perform a tridimensional scan in order to collect the radiated field cartographies around the device under test. This measurement technique is very useful to evaluate the electromagnetic radiation of structures having tridimensional geometrical forms with a less time measurement and without identifying potential discontinuities for a more accurate model. Obtained results enable us to validate the near field scan technique as well as the tridimensional modeling approach.