Klaus
Solbach1, Stephan Orzada2, Pedram Yazdanbakhsh1
1Radio Frequency Technology, University
Duisburg-Essen, Duisburg, Germany; 2University Duisburg-Essen,
Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Germany
Measurements
of the electric and magnetic near-fields of our 7 Tesla strip conductor-type
coils are presented using probes travelling on a linear scanning mechanism in
our antenna test chamber. In addition, the far-field patterns and gain were
measured and it is found that the coils behave much like stripline antennas
with strong radiation fields. The measurements of the near-fields of a
dipole- and loop-type coil shows important differences in the field levels
and distributions with higher B1- flux levels and more concentrated spatial
distribution as well as lower E-field levels in the dipole-type.
Keywords