Not only that, there is no mention of which part of the EM spectrum this RAM performs best against, since the claimed range is all the way from below HF band all the way up to V band. This range encompasses every last band that is used for military radar applications. The chance that this RAM is equally effective against all the bands in this range is right around zero. Most likely it is designed to maximize attenuation vs the higher end bands, as would be expected from just about any other RAM material developed so far.Ughhh, The abstract Klon posted is a description of RAM or Radar Absorbing Material not the recent Buzz word Meta-material.
Meta-material is a 3 Dimensional shape that does not occur in nature which has special properties.