This technological area is still in its infancy.The work of Nathan Cohen on fractal antennas is further ahead thanthese fellows, but making a science out of this experimental engineering approachseems a while off. The idea of using a Zipf law word frequencyas a censor based on a filtering of specific work frequenciesor of using fractal compression to remove or edit features from photosas a filter are applications of the future for this kind of field.As it stands the fractals used here are really not yet fractals:something over three levels of L-system recursion seems necessaryfor real fractal properties to show up. The main example isbased on a very crude second level Hilbert space fill.But at dimension 2, not even the border is fractal in thistype of recursion! Something simple like a Heighway-Harter fold dragond=2 or a Levy Dragon which actually have fractal bordersmight be a better choice? The concept of fractals with many holesin the Sierpinski gasket/ carpet types being used a radiation trapsor mazes is the usual approach in this area. For instance,3d printed Menger cube at above a third recursive iterationlevel might be a good fractal radiation trap.What these engineers need is to consult someone who actuallyknows about fractals like Dr. Mauldin or Dr. Lapidus.