一种基于里斯利棱镜的宽带消色差波束导向超透镜天线

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-02-11 DOI:10.1109/LAWP.2025.3540795

Xin-Yue Zhang;Geng- Bo Wu;Yu-Xuan Xie;Guan-Long Huang;Shu-Yan Zhu

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引用次数: 0

摘要

为了实现大扫描范围、宽带宽和低扫描损耗，提出了一种基于risley棱镜的消色差波束导向超构天线。基于Risley棱镜和消色差理论，该天线主要由可旋转的类凹超透镜和类凸超透镜组成。双层超构透镜作为里斯利棱镜系统，通过上下超构透镜的相对旋转来实现光束在方位角和仰角尺寸上的扫描性能。它还起到消色差超构透镜群的作用，增大了天线的体宽。结果表明，该天线实现了±50°的最大扫描角，测量到的3db增益BW大于33.5%。最大增益为20.6 dBi，扫描损耗为0.9 dB。该天线具有极低的损耗和宽的波宽，在汽车雷达和智能交通的应用中具有重要意义。

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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A Risley-Prism-Based Achromatic Beam-Steering Metalens Antenna With Wide Bandwidth

We propose a Risley-prism-based achromatic beam steering metalens antenna to realize a large scanning range, wide bandwidth (BW), and low scanning loss. Based on Risley prism and achromatic theory, the proposed antenna mainly consists of rotatable concave-like metalens and a convex-like metalens. The two-layer metalens serve as the Risley-prism system to achieve the beam scanning performance in azimuth and elevation dimensions through the relative rotation of the upper and lower metalenses. It also plays the role of the achromatic metalens group, which enlarges the antenna BW. Results demonstrate that our proposed antenna realizes the maximum scanning angle of ±50°, and the measured 3 dB gain BW is larger than 33.5%. The maximum gain is 20.6 dBi, with a scanning loss of 0.9 dB. The superiorly low loss and wide BW make our proposed antenna of great significance in the applications of automotive radar and intelligent transportation.

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.