Power amplification subassembly and TR subassembly

The utility model discloses a power amplification subassembly, include: the driving amplifier amplifies the drive signal of input under the circumstances of drive power supply power supply, power amplifier, it connects the driving amplifier, and the drive signal to enlarged input under power amplifier mains operated's the condition carries out power amplification to output has the signal amplification of target power, the shielding cavity, it is provided with the cavity and laps, the cavity apron is arranged in sealed driving amplifier and the power amplifier who places the shielding cavity in to prevent to influence each other the production self excitation between the power amplification subassembly and reduce the reliability of power amplification subassembly. The utility model discloses a to launch that driving amplifier and power amplifier in the branch road is sealed to form independent power amplification subassembly, and can avoid influencing each other between a plurality of power amplification subassemblies and produce the self excitation. In addition, sealing respectively and setting up driving amplifier and power amplifier, the signal interference between reducible driving amplifier and the power amplifier influences, prevents that the signal from leaking. The utility model also discloses a TR subassembly, contains the power amplification subassembly.