3-D electromagnetic field modeling based on near field measurements

This paper presents a practical 3-D electromagnetic field modeling technique based on a phaseless "near field/far field" (NF/FF) transform where field values are computed from a limited set of near field measurements taken in the vicinity of the "device under test" (DUT). A non-invasive computer vision technique for the recovery of the 3-D position parameters of the EM probe which scans the near field around the DUT is finally presented.