Transmit arrays improves the transmit field homogeneity while reducing the local hot spot. Current array designs for the head are not optimized for arterial spin labeling and simultaneous brain and cervical spinal cord applications caused by the short longitudinal coverage. To approach this problem, we designed and constructed a three-row Tx array covering the whole brain and cervical spinal cords (length: 28 cm). The overall performance of the coil is good with return losses < -20 dB while having adjacent coils’ coupling averaging -25.3 dB and diagonal coil’s coupling averaging -14.6 dB. The coil’s detune circuit also worked as intended.
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