This paper aims to present a new iterative procedure for the 3D representation of focusing magnetic fields in TWTs generated by PPMs, by using equivalent sources and optimisation algorithms.
In the integrated optimisation strategy general models for magnetic sources are employed and local and global inverse problems are iteratively solved for the minimization of the representation error.
The results obtained show that the target accuracy is reached with a low computational effort, employing a minimum number of equivalent sources.
The procedure is robust and converges for all the examined magnetic field configurations.
Different from other approaches, the procedure presented here can be directly applied to a variety of different models for magnetic sources.
