Traditional MRI employs time division duplexing between the receiver (RX) and transmitter (TX) to avoid RX saturation from TX self-interference. Large switching time between the TX and RX modes demands large TX power and constricts the imaging to tissues with large relaxation times. In this work, we propose a magnetic-free, switch-transmission line circulator which is fully compatible with MRI systems and achieve simultaneous transmit and receive (STAR) MRI.
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