Loop Antennas for Near-Field Multipolar-Expansion Identification: First Experimental Validations

In this paper, electromagnetic compatibility is assessed using novel magnetic induction sensors based on the standard CISPR16-1 coils. The new coil shape allows the sensors to be sensitive only to specific components of the multipolar expansion, which is similar to a spatial filtering. The aim is to simplify the geometry of sensor coils introduced in the previous work by rotating the spherical-harmonic functions. This paper describes the mathematical tools required as well as the design method and concludes with the first experimental studies.