Advanced cross polar source diagnostics based on the equivalent currents reconstruction from measured data

Abstract

The equivalent current (EQC) technique applied on antenna measurements has been demonstrated to be an efficient tool for diagnostics in many measurement situations [15]. Indeed the equivalent currents can be applied in tasks such as the filtering of disturbances such as undesired coupling with the supporting structure or the feeding and in NF-NF transformation. In particular the filtering capabilities have been efficiently demonstrated for suppressing the disturbances due to the presence of the feeding cable and of the mounting support in the measurement set-up in a sleeve dipole and a TT&C antenna [6]. The study was focused on the analysis of the co-polar component of the radiated field. Starting from the past results [6] we present in this paper a new study of the TT&C antenna extended also to the diagnostic of the cross-polar antenna sources.