Ultra-high filed (UHF) whole-body MRI technique usually utilizes radio frequency power amplifier (RFPA) with high power rating [1,2]. It requires high isolation among transmission channels as well as between transmitting and receiving (T/R) circuits. It also requires high B1 homogeneity [3] and signal-to-noise ratio (SNR). On the premise of meeting the abovementioned requirements, this paper presents an 8-channel high power pTx architecture, which can support the whole-body MRI system with high isolation among transmission channels as well as between T/R circuits.
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