Radio frequency identification reader-writer simulator

The utility model relates to the field of the radio frequency identification technology, the purpose of the simulator is to solve the problems of lower upgradeability and complex structures of the RFID detection systems in the prior art, the utility model provides a radio frequency identification reader-writer simulator, comprising a control unit, a signaling unit, an adjustable modulator, an adjustable power amplifier, an antenna coupler, an antenna, and a circulator. The reader-writer simulator simulates the real reader-writer work behavior, the adjustable modulator and the adjustable power amplifier are modularization instruments with parameters can be adjusted. The beneficial effects of the simulator are : via the adjustable modulator and the adjustable power amplifier, improving test precision; via the software configuration mode, saving costs of the reader-writer simulator and the label simulator with the same frequency range and different protocols; via the user-defined bus-type slot structure, performing hardware expansion on the RFID tests with different protocols and different frequencies.