Pérez Quintana, DayanBilitos, ChristosRuiz-García, JorgeGonzález-Ovejero, DavidBeruete Díaz, Miguel2022-05-102022-10-252021D. Pérez-Quintana, C. Bilitos, J. Ruiz-García, D. Gonzalez-Ovejero and M. Beruete, 'Flat Lens Antenna using Gap Waveguide Technology at Millimeter Waves,' 2021 Fifteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), 2021, pp. 343-346, doi: 10.1109/Metamaterials52332.2021.9577146.978-1-7281-5018-510.1109/Metamaterials52332.2021.9577146https://academica-e.unavarra.es/handle/2454/42900In this paper, a flat lens antenna using Gap Waveguide (GW) technology working in the millimeter waves band was designed. The metamaterial lens is fed using a Groove Gap Waveguide (GGW) horn antenna in order to achieve a plane wavefront at broadside. Both devices, metalens and GGW antenna achieve excellent radiation results when combined together. Due to metallic composition, the structure presents more robustness, low loss, and adaptability to a flat surface, able to be used in millimeter wave application.4 p.application/pdfeng© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.Surface wavesHorn antennasMillimeter wave technologyGap waveguideMetasurfacesMetamaterialsRobustnessinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess