In order to make up for the deficiency of traditional passive jamming, a new electronic jamming mode is proposed, which mainly absorbs electromagnetic waves. Firstly, based on the traditional interference corridor model of radar electromagnetic signal power attenuation, the absorber as a whole is analyzed and its interference mechanism is obtained; With reference to the idea of studying the electromagnetic characteristics of stealth metamaterials by Floquet port method, the electromagnetic simulation software HFSS is used to establish an electromagnetic model for simulation verification, and the scaled method is used to simplify the model. The experimental results are consistent with the theory, which shows that the interference mechanism and the interference simulation model are correct.