▎ 摘　　要

NOVELTY - The method involves correcting and compensating the loss generated between the connector and the transmission line in the network analyzer. The film sample to be tested is cut into a sample by a laser cutting and engraving machine according to the size of the coaxial line. The prepared test sample is placed in the electromagnetic interference shielding coaxial cable, and the two ends of the coaxial cable are connected to the dual ports of the network analyzer. USE - Method for testing electromagnetic interference shielding efficiency of graphene film. ADVANTAGE - The method enables obtaining the electromagnetic shielding ability of the graphene film by performing the electromagnetic interference shielding effectiveness test on the graphene film, where the graphene film has the characteristics of high specific surface area, high electrical conductivity, and light weight, and ensures high-efficiency electromagnetic interference shielding efficacy. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a network analyzer.