摘要:In this paper, the Generalized Matching Law of electromagnetic parameters was given for in the application of radar absorbing materials, and applied in the research of absorbing properties of multi -coated absorbing materials. We gave the power reflection formula, defined the constant of general matching law M, and discussed the relationship of general matching constant M with power reflectivity R P , thickness d, relative permittivity ε r , relative permeability μ r . We found that the enhancement of RP was not obvious at the ε″ r was optimized, but the μ″ r was primary. In short, this is consistent with panorama analysis method.