Juárez, ElizvanPanduro, Marco A.Covarrubias, David H.Reyna, AlbertoRío Bocio, Carlos del2024-05-202024-05-202023Juarez, E., Panduro, M. A., Covarrubias, D. H., Reyna, A., Del Rio, C. (2023) Application of coherently radiating periodic structures for feeding subarrays in limited-scan arrays. IEEE Open Journal of Antennas and Propagation, 4, 1154-1162. https://doi.org/10.1109/OJAP.2023.3330771.2637-643110.1109/OJAP.2023.3330771https://academica-e.unavarra.es/handle/2454/48124This paper presents a new design technique to improve the reduction of phase shifters using sub-arrays and CORPS (coherently radiating periodic structures) technology. The CORPS network generates the values of cophasal excitation with reduced input ports. These values feed an optimal sub-arrays structure. Furthermore, fixed and variable amplifiers allow a low SLL (side lobe level) by using a raised cosine amplitude distribution along sub-arrays inputs. The theoretical model of CORPS-Subarrays, numerical and experimental results of several design cases are presented. The proposed design achieves a ±14° scanning range with a higher reduction of phase shifters than other techniques presented previously in the state of art. This paper illustrates, as a contribution, the complete antenna system based on the fabrication of a prototype and experimental results to analyze the reduction capacity of phase shifters and scanning possibilities of the proposed methodology in antenna arrays. The experimental results of the BFN (beam-forming networks) prototype at 6 GHz for 11 antenna elements and 3 phase shifters are provided. The proposed design achieves a reduction of 72% of phased shifters with ±14° beam scanning and −15 dB of SLL.application/pdfeng© 2023 The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.Beam-scanningCORPSPhase shiftersPhased arraySubarraysinfo:eu-repo/semantics/article2024-05-20Acceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess