Sensitivity analysis of Jaumann absorbers

Jaumann absorbers show promise as radar absorbing materials (RAMS) for supp ressing scattering reflections or reducing the radar cross-section (RCS) of perfectly conducting scatterers. Although various optimised designs are re ported in the literature, there is little information on sensitivity of per formance to manufacturing errors in the spacers and sheet resistances. The paper reports the findings of some studies using Taguchi methods to evaluat e sensitivity and interactions of parameters in Jaumann layers placed on pl ane and curved (cylindrical) surfaces. The results are favourable, indicati ng moderate sensitivities to individual parameters and the only strong inte ractions present between the interlayer spacings.