Work

Radomizing an Antenna for a SAR-Based ETA Radar System While Ensuring Imaging Accuracy: A Focus on Phase Shifts

Year: 2025

Type: article

Abstract: The impact of radomization on the radiation pattern of a millimeter-wave antenna for an ETA system utilizing synthetic aperture radar (SAR) is examined with special emphasis placed on the phase shift across both the beamwidth and the bandwidth, rather than the amplitude. Three different radomization approaches, including one based on metasurfaces, are evaluated for a radar antenna operating within the 24.05-24.25 GHz frequency range. Fabricated prototypes, both of the standalone antenna and the radomized version, are tested and compared in terms of electromagnetic image quality. The metasurface-based radome provides the best results among the radomization options analyzed.

Source: Micromachines

DOI: 10.3390/mi16060720

Authors: María Elena de Cos Gómez, Alicia Flórez Berdasco, Jaime Laviada Martínez, Fernando Las-Heras Andrés

Institution: Universidad de Oviedo

Language: English

Topic: Advanced Antenna and Metasurface Technologies

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,534

Funders: Gobierno del Principado de Asturias, Ministerio de Ciencia, Innovación y Universidades, Ministerio de Ciencia e Innovación