Advanced antenna diagnostics based on equivalent currents

This paper discuss recent advances in antenna diagnostics from measured field data. The method proposed is based on field representation using equivalent magnetic and electric sources on arbitrary shaped geometries enclosing the antenna under test. This paper briefly outlines the standard formulation and shows the need of enhancement for the general case of fully blind reconstruction. Subsequently, the novel and robust formulation is presented. The validation of the method is illustrated with synthetic and measured examples. The selected examples demonstrate the application of the technique to general antenna diagnostics, leakage detection, location and causes of antenna malfunctioning, identification and removal of unwanted interactions from measurements.