Ka-Band Low-Profile Circularly Polarized Liquid Crystal Folded Reflectarray Antenna

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-09-02 DOI:10.1109/LAWP.2025.3605393

Jiale Liu;Feng Liang;Xu Ni;Xiangru Wang;Deshuang Zhao;Bing-Zhong Wang

引用次数: 0

Abstract

A low-profile circularly polarized liquid crystal (LC) folded reflectarray antenna operating at 30 GHz is proposed. The antenna consists of a 16 × 16 LC reconfigurable main reflector, a multilayer metasurface subreflector, and an integrated linearly polarized feed at the center of the main reflector. To verify this design, the proposed antenna has been fabricated and measured. It features a low profile height of only 2.5λ₀ with an H/D ratio of 0.31. Its beam can be continuously steered, covering ±45° in the elevation plane and 0° to 360° in the azimuth plane. The measured 3 dB axial ratio bandwidth is 9.3% (28.6 GHz to 31.4 GHz).

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ka波段低轮廓圆极化液晶折叠反射天线

提出了一种工作频率为30ghz的低轮廓圆极化液晶（LC）折叠反射天线。该天线由一个16 × 16 LC可重构主反射器、一个多层超表面副反射器和主反射器中心的集成线极化馈源组成。为了验证这一设计，所提出的天线已经制作和测量。其低轮廓高度仅为2.5λ0， H/D比为0.31。它的波束可以连续操纵，在仰角面覆盖±45°，在方位面覆盖0°到360°。实测3db轴比带宽为9.3% （28.6 GHz ~ 31.4 GHz）。

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

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.