All-metal Ku-band Luneburg lens antenna based on variable parallel plate spacing Fakir bed of nails
Fan-Beam Millimeter-Wave Antenna Design Based on the Cylindrical Luneberg Lens
A pole-zero matching method for EBG surfaces composed of a dipole FSS printed on a grounded dielectric slab
Non-Uniform Metasurface Luneburg Lens Antenna Design
A Printed, Broadband Luneburg Lens Antenna
Parallel-plate-waveguide luneburg lens through a holey plate metasurface