https://research.tue.nl/nl/publications/quarter-wave-fresnel-zone-plate-lens-and-antenna/
Quarter-wave Fresnel zone plate lens and antenna - Onderzoeksportaal Eindhoven University of...
quarter wavefresnel zone
https://publica.fraunhofer.de/entities/publication/55f207c1-ec7f-45d4-802c-888b0c12e110
Blazed Fresnel zone lenses approximated by discrete step profiles: Effects of fabrication errors
Blazed Fresnel zone lenses for 1.5 mu m wavelength were fabricated in quartz glass by means of microstructuring technology. The blazed profile in each zone of...