Design of a Self Decoupled 16 Channel Transmitter for Human Brain MRI at 447MHz

Nader Tavaf, Jerahmie Radder, Russell L. Lagore, Steve Jungst, Andrea Grant, Kamil Ugurbil, Gregor Adriany, Pierre Francois Van de Moortele

Transmitter arrays play a critical role in ultra high field Magnetic Resonance Imaging (MRI), especially given the advantages made possible via parallel transmission (pTx) techniques. One of the challenges in design and construction of transmit arrays has traditionally been finding effective strategies for decoupling elements of the transmit array. Here, we present the design of the first self-decoupled, loop-based transmit array for human brain MRI at 10.5T / 447MHz. We demonstrate, using full-wave electromagnetic simulations, effective decoupling of the transmit elements without requiring the conventional overlap or inductive decoupling techniques.

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