| Title: |
Monolithic Dual-Polarized Leaky-Wave Array with Off-Axis Pointing, 36 dBi Gain and Unbalanced Beamforming Networks for Radar Applications |
| Authors: |
Martins, Valentin, Lourenço; Rahault, Erwan; Dorlé, Aurélie; Méric, Stéphane; Menargues, Esteban; García Vigueras, María |
| Contributors: |
DEMR, ONERA, Université de Toulouse Toulouse; ONERA-Communauté d'universités et établissements de Toulouse (Comue de Toulouse); Institut d'Électronique et des Technologies du numéRique (IETR); Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes); Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - Ecole Polytechnique de l'Université de Nantes (Nantes Univ - EPUN); Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ); SWISSto12 |
| Source: |
EuMW-EuMIC+EuMC+EuRAD 2025-European Microwave Week ; https://hal.science/hal-05302206 ; EuMW-EuMIC+EuMC+EuRAD 2025-European Microwave Week, Sep 2025, Utrecht, Netherlands |
| Publisher Information: |
CCSD |
| Publication Year: |
2025 |
| Collection: |
Université de Nantes: HAL-UNIV-NANTES |
| Subject Terms: |
additive manufacturing; dual polarization; low profile; High gain; [PHYS]Physics [physics] |
| Subject Geographic: |
Utrecht; Netherlands |
| Description: |
International audience ; This paper proposes a compact, lightweight radiating panel for polarimetric radar, consisting of 32 dual-mode leaky waveguides fed by orthomode transducers and unbalanced beamforming networks. The array generates a high-gain pencil beam (46 λ long) with low sidelobes, achieved through equi-phase non-uniform excitation and modulation of the waveguide perforations. The three-layer monolithic panel, 3D printed using selective laser melting, integrates two beamforming networks and the radiating elements. The prototype is well matched for both polarization, it presents high isolation and a high-gain beam with off-axis pointing. This work demonstrates the first monolithic large radiating aperture with such a performance, providing a solution for balancing compactness and complexity in high-gain antenna arrays. |
| Document Type: |
conference object |
| Language: |
English |
| Availability: |
https://hal.science/hal-05302206; https://hal.science/hal-05302206v1/document; https://hal.science/hal-05302206v1/file/demr2025-025.pdf |
| Rights: |
https://about.hal.science/hal-authorisation-v1/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.862D2EDA |
| Database: |
BASE |