Method and device for measuring coupling performance parameters of RFID tag

The invention relates to a method and a device for measuring coupling performance parameters of an RFID tag. According to the method, the influences of a distance between a target tag and an interference tag, an angle between the target tag and the influence tag and an emission angle of an RFID read-write device on a minimum reading power value of the target tag are measured through changing the distance between the target tag and the interference tag and the angle between the target tag and the interference tag or a position of a reader-writer. Three parameters, namely the distance between the target tag and the interference tag, the angle between the target tag and the interference tag and the emission angle of the RFID read-write device, are adjustable in the method, the optimal simulation and experiment can be carried out on the tag placement and layout to the maximum, and the influences of the distance between the target tag and the interference tag, the angle between the target tag and the influence tag