Leoz-Beltrán, IñigoIriarte Galarregui, Juan CarlosPérez Quintana, DayanTeberio Berdún, FernandoBeruete Díaz, MiguelEderra Urzainqui, Íñigo2025-08-132025-08-132025-03-12Leoz-Beltrán, I., Iriarte, J. C., Pérez-Quintana, D., Teberio, F., Beruete, M., Ederra, I. (2024) Wideband circularly-polarized gap waveguide-based antenna design. In 2024 IEEE 1st Latin American Conference on Antennas and Propagation (LACAP 2024) (pp. 1-2). Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/LACAP63752.2024.10876333979-8-3315-2759-410.1109/LACAP63752.2024.10876333https://academica-e.unavarra.es/handle/2454/54725This paper presents the design of an all-metal antenna based on Gap Waveguide technology. The antenna, which is realized using a Ridge Gap Waveguide, consists of just two layers, maintaining a compact size. The first layer is made up of two perpendicularly placed arms, which comprise the feeding, and the second layer hosts a diamond shaped slot and a horn, which comprise the radiator. Simulations show that the design achieves a remarkable bandwidth equivalent to the 31.43% of the central frequency in terms of both S11 parameter, being below -10 dB, and Axial Ratio, being below 3 dB.application/pdfeng© 2024 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.AntennaCircular polarizationGap waveguideRidge gap waveguideWidebandinfo:eu-repo/semantics/conferenceObject2025-08-13info:eu-repo/semantics/openAccess