Retrieval of the Driving Currents of a Dipole Array from the Radiated Field Magnitude

A technique is described for the retrieval of the driving currents of a dipole array from measured magnitude-only field data and the array configuration. The current values are determined by an iterative algorithm which has been validated by means of simulation with scan-limited data sets. It is intended that the technique be developed to provide a method to diagnose faults on arrays in service.