An iterative procedure for equivalent source representation of focusing magnetic fields in TWT

Abstract

Purpose

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.

Design/methodology/approach

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.

Findings

The results obtained show that the target accuracy is reached with a low computational effort, employing a minimum number of equivalent sources.

Practical implications

The procedure is robust and converges for all the examined magnetic field configurations.

Originality/value

Different from other approaches, the procedure presented here can be directly applied to a variety of different models for magnetic sources.

Citation

Coco, S. and Laudani, A. (2007), "An iterative procedure for equivalent source representation of focusing magnetic fields in TWT", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 26 No. 2, pp. 317-326. https://doi.org/10.1108/03321640710727674