Simulation system of passive radio frequency identification tag

The utility model belongs to a radio frequency identification reader-writer test technology in the technical field of test and measurement, and particularly relates to a simulation system of a passive radio frequency identification tag. A tested reader-writer, an attenuator, a radio frequency coupler, a radio frequency connecting stub, a radio frequency switch and a reflector are sequentially connected through lines, the other end of the radio frequency switch is connected with a fixed reflector through a line, and the other end of the radio frequency coupler and the other end of the radio frequency switch are connected with an acquisition response module through lines. The other end of the acquisition response module is connected with the computer through a line, and the computer and the other end of the reflector are connected with the reflector controller through lines. The device is simple in structure and reasonable in design, completely simulates the response of a tag to a radio instruction of a reader-