The present invention relates to a radio frequency power amplification device of a magnetic resonance imaging device, a donor digital board for converting an RF pulse signal from an analog signal to a digital signal when a wireless pulse signal (RF Pulse) and a synchronization signal (Sync function) are input, An optical transmitter that converts the RF pulse signal and synchronization signal into an optical signal, an optical cable that transmits the signal of the optical transmitter, an optical receiver that receives an optical signal (Optic) transmitted through the optical cable, and received through the optical receiver. A remote digital board of a remote digital board that converts a signal into a digital signal, converts it into an analog RF pulse signal, and outputs the synchronous signal separately, and a bias switch circuit, radio frequency power amplifier transistor, and RFPA gain linearity. A radio amplified by controlling the bias power of the radio frequency power amplifier transistor according to the synchronization signal of the bias switch circuit unit and the bias switch circuit unit for receiving the synchronization signal of the remode digital board and the attenuator for correcting A high-frequency radio frequency amplifier for transmitting a pulse signal (RF Pulse), a coupler for transmitting forward and reverse RF power to a remote digital board by coupling the output signal of the radio frequency power amplifier (RFPA), and It is characterized in that it includes a magnetic resonance frequency coil for receiving the amplified radio pulse signal (RF Pulse) signal so that the MRI image can be captured.본 발명은 자기공명영상장치의 무선주파수 전력증폭장치에 관한 것으로, 무선 펄스 신호(RF Pulse)와 동기 신호(Sync function)가 입력되면 RF 펄스신호를 아날로그 신호에서 디지털신호로 변환시키는 도너 디지털보드, 상기 RF 펄스 신호와 동기 신호를 광신호로 변환하는 광송신기, 상기 광송신기의 신호를 전송하는 광케이블, 상기 광케이블을 거쳐 전송된 광신호(Optic)를 수신하는 광수신기, 상기 광수신기를 통해 수신된 신호를 디지털(Digital) 신호로 변환하여 아날로그 RF Pulse신호로 변환하여 출력하고, 동기 신호를 분리되어 출력하는 원격 디지털 보드의 리모트 디지털 보드, 바이어스 스위치 회로부와,
