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Decoupling of Folded Dipole Antenna Elements of a Human Head Array at 9.4T
{Dipole antennas have been successfully utilized at ultra-high fields (UHF, \textgreater7 T) as elements of human body arrays. Usage of dipoles for UHF human head arrays is still under development. In this case, dipoles must be made much shorter, and placed at a relatively large distance to the head. As a result, dipoles are not well loaded and are often purely decoupled. In this work, we developed a novel method of decoupling of adjacent dipole antennas, and used this technique while constructing a novel 9.4 T human head TxRx dipole array coil. The array demonstrates good decoupling and full-brain coverage.}
@misc{item_3247902, title = {{Decoupling of Folded Dipole Antenna Elements of a Human Head Array at 9.4T}}, booktitle = {{2020 ISMRM \& SMRT Virtual Conference \& Exhibition}}, abstract = {{Dipole antennas have been successfully utilized at ultra-high fields (UHF, \textgreater7 T) as elements of human body arrays. Usage of dipoles for UHF human head arrays is still under development. In this case, dipoles must be made much shorter, and placed at a relatively large distance to the head. As a result, dipoles are not well loaded and are often purely decoupled. In this work, we developed a novel method of decoupling of adjacent dipole antennas, and used this technique while constructing a novel 9.4 T human head TxRx dipole array coil. The array demonstrates good decoupling and full-brain coverage.}}, pages = {464}, year = {2020}, slug = {item_3247902}, author = {Avdievitch, N and Solomakha, G and Ruhm, L and Henning, A and Scheffler, K} }