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

IF 3 3区工程技术 Q2 CHEMISTRY, ANALYTICAL

Micromachines Pub Date : 2025-06-17 DOI:10.3390/mi16060720

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

引用次数: 0

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.

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基于sar的ETA雷达系统在保证成像精度的同时对天线进行雷达化：对相移的关注。

利用合成孔径雷达（SAR）研究了雷达化对ETA系统毫米波天线辐射方向图的影响，特别强调了波束宽度和带宽上的相移，而不是幅度。针对工作在24.05-24.25 GHz频率范围内的雷达天线，评估了三种不同的雷达化方法，其中包括一种基于超表面的方法。制作的原型，独立天线和天线化版本，在电磁图像质量方面进行了测试和比较。基于超表面的天线罩在分析的雷达化选项中提供了最好的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Micromachines NANOSCIENCE & NANOTECHNOLOGY-INSTRUMENTS & INSTRUMENTATION

CiteScore

5.20

自引率

14.70%

发文量

1862

审稿时长

16.31 days

期刊介绍： Micromachines (ISSN 2072-666X) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to micro-scaled machines and micromachinery. It publishes reviews, regular research papers and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.