Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions

Gianluigi Tiberi, Nunzia Fontana, Agostino Monorchio, Riccardo Stara, Alessandra Retico, Michela Tosetti

Research output: Contribution to journalArticle

Abstract

A procedure for evaluating radio-frequency electromagnetic fields in anatomical human models for any matching and coupling conditions is introduced. The procedure resorts to the extraction of basis functions: such basis functions, which represent the fields produced by each individual port without any residual coupling, are derived through an algebraic procedure which uses the S parameter matrix and the fields calculated in one (only) full-wave simulation. The basis functions are then used as building-blocks for calculating the fields for any other S parameter matrix. The proposed approach can be used both for volume coil driven in quadrature and for parallel transmission configuration.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalJournal of Magnetic Resonance
Volume261
DOIs
Publication statusPublished - Dec 1 2015

Keywords

  • Electromagnetic RF fields
  • RF coils
  • RF full-wave simulations
  • Ultra high field magnetic resonance

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Biochemistry
  • Biophysics
  • Condensed Matter Physics

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