S-band power amplification assembly

The utility model discloses an S-band power amplification assembly, which relates to the technical field of communication, can amplify the power of an antenna receiving signal in an S-band, and can avoid noise interference and clutter interference. The input port of the Pi-type attenuator serves as the input end of a radio frequency signal, and the Pi-type attenuator, the electrically controlled attenuator, the first-stage amplifier, the second-stage amplifier, the dielectric filter, the first isolator and the third-stage amplifier are connected in sequence. The output end of the third-stage amplifier is connected with the fixed end of the first single-pole double-throw switch; one moving end of the first single-pole double-throw switch is connected with the input end of the fourth-stage amplifier, and the other moving end of the first single-pole double-throw switch is connected with the first moving end of the second single-pole double-throw switch. And the fourth-stage amplifier is connected with the fifth