Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 17, Issue 9, Pages 1588-1592Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2018.2856371
Keywords
Fully metallic lens; glide symmetry; higher symmetries; Ka-band; Luneburg lens; periodic structures; 5G
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Here, we propose a fully metallic implementation of a Luneburg lens operating at Ka-band with potential use for 5G communications. The lens is implemented with a parallel plate that is loaded with glide-symmetric holes. These holes are employed to produce the required equivalent refractive index profile of a Luneburg lens. Glide symmetry and inner metallic pins are employed to increase the equivalent refractive index. The lens is fed with rectangular wave guides designed to match the height of the parallel plate, and it is ended with a flare to minimize the reflections.
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