Abstract #1810
Impact of different meander sizes on the RF transmit performance and decoupling of micro strip line elements at 7T
Stefan H. G. Rietsch 1,2 , Harald H. Quick 1,2 , and Stephan Orzada 1
1
Erwin L. Hahn Institute for MR Imaging,
Essen, Germany,
2
High
Field and Hybrid MR Imaging, University Hospital Essen,
Essen, Germany
Micro strip line elements and dipole antennas have
successfully been incorporated as radiofrequency
transmit elements in 7T high field MRI. Some inherent
features of both types are combined in meander elements
(ME). In this work finite difference time domain field
simulations are used to investigate the impact of
changing meander size on RF transmit performance and on
decoupling between neighboring ME. Results show that
medium meander sizes allow for maximum central field
strength, while providing the best mutual decoupling to
adjacent elements. In conclusion, RF transmit-arrays
consisting of ME should be based on elements with medium
meander size.
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