Sensitivity analysis of Jaumann absorbers

Jaumann absorbers show promise as radar absorbing materials (RAMS) for suppressing scattering reflections or reducing the radar cross-section (RCS) of perfectly conducting scatterers. Although various optimised designs are reported in the literature, there is little information on sensitivity of performance to manufacturing errors in the spacers and sheet resistances. The paper reports the findings of some studies using Taguchi methods to evaluate sensitivity and interactions of parameters in Jaumann layers placed on plane and curved (cylindrical) surfaces. The results are favourable, indicating moderate sensitivities to individual parameters and the only strong interactions present between the interlayer spacings.