Operation of 8-wavelength-radius 2-layer lenses

Two competing 8-wavelength-radius 2-layer lens designs were identified in the literature. Both were analyzed by ray tracing and full wave simulation, as an initial step toward production by additive manufacturing for use at mm-wave frequencies. The conclusion of this initial study is that the relative permittivity 1.68-1.6 design appears to be best suited to production by laser sintering.