META Conference, META'12

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Different configurations of metamaterials coupled with an RF coil for MRI Applications
Mohand Said KHENNOUCHE, Frederique GADOT, Benoit BELIER, Andre De LUSTRAC

Last modified: 2012-07-08

Abstract


In this paper the effect of coupling two kinds of
metamaterial cells with a coil to achieve Magnetic
Resonance Imaging (MRI) is investigated. Both an array of
four spirals and a single spiral-shaped metamaterial are
associated to the coil antenna. The goal is to increase the
sensitivity of the whole system and to improve the
homogeneity of the RF magnetic field pattern. The spiralshaped
metamaterials associated to the antenna give very
promising numerical results. We are fabricating both
structures using microfabrication techniques because of the
small size of the structures.

Keywords


Metamaterials, Magnetic Resonance Imaging, Radio Frequency Antennas,