Dual-channel passive device power tolerance testing system

The invention relates to a dual-channel passive device power tolerance testing system. The dual-channel passive device power tolerance testing system comprises two signal generators. Both the signal generators are correspondingly connected to signal switches. The signal switches are connected to electric bridges through power amplifiers. Each signal switch is connected with two power amplifiers, and connection is switched through switches. The 3dB electric bridges are connected with diplexers through dual-directional couplers. Loads are hung outside the electric bridges. The forward coupling end and the reverse coupling end of each dual-directional coupler are connected with two terminals of a corresponding dual-channel power meter respectively. The diplexers are connected with spectrometers through detection ports, the diplexers are connected to detection parts, and the detection parts are connected with attenuators through filters. Loads are hung outside the detection parts. The attenuators are connected with the spectrometers. The dual-channel passive device power tolerance testing system judges whether the performance of devices is qualified or not by checking the working states and the technical indexes of the devices in peak power and average power, so that the requirements for communication capacity and communication quality of the whole communication system are guaranteed, and system interference is reduced from the source.