Large size, lightweight, Luneburg Lenses for multi-beam antenna applications

Using newly developed meta-materials, multilayer Luneburg Lenses were fabricated with diameters 0.6m and 1.0m. The meta-materials used are broad-band, have low losses, have controllable permittivity and average density of 40kg/m
³
. This allows for a construction of large diameter broadband Luneburg Lenses with multilayer structure and low weight, the 0.6m and 1.0m Lenses weighing less then 5kg and 21kg respectively. The measurement results of the light weight, large size, broadband Luneburg Lenses are presented.