On the near-field to far-field transformation for the stochastic assessment of unintentional electromagnetic radiators

Numerical simulations are a common procedure to characterize electromagnetic radiators. For the derivation of stochastic approaches to describe unintentional radiators, these simulations are useful. Nevertheless, the stochastic assessment comes with some important requirements. This paper presents the necessity of a uniformly distributed sampling of the far-field radiation pattern. It is shown that commercial software does not provide this kind of desired sampling. Hence, it is made use of the near-field to far-field transformation to produce a stochastically correct sampling of the far-field.