A Wideband Dual-Polarized Reconfigurable Reflectarray Using Polarization Rotation Technique

IF 3.4 3区计算机科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Access Pub Date : 2025-06-18 DOI:10.1109/ACCESS.2025.3581161

Jalaledin Tayebpour;Raafat R. Mansour

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引用次数: 0

Abstract

This paper presents a wideband dual-polarized 1-bit reconfigurable reflectarray antenna (RRA) at Ku-band, featuring a novel multi-layer unit cell with two substrates and three metallic layers. By utilizing the out-of-phase characteristic of the electric field in the dominant mode of the patch and polarization conversion, the design achieves two distinct phase states with accurate resolution over a wide bandwidth. Two PIN diodes serve as switches, enabling 180° phase difference between states while converting an x-polarized incident wave to a y-polarized reflected wave (and vice versa). A single control signal simultaneously operates both diodes, significantly simplifying the control system. Simulations confirm a 180° ± 2° phase difference from 10 GHz to 15 GHz. To explore beam steering capability, a

$10 \times 10$

reconfigurable reflectarray prototype was fabricated and tested, with each unit cell wired to a DC biasing board and controlled via an SPDT manual switch. Measured results demonstrate beam steering up to 50° in both planes for both polarizations, with a 1-dB gain bandwidth of 13.7% (12.2 GHz-14 GHz), closely matching simulations. The combination of wide bandwidth, dual-polarization capability, and simplified fabrication makes this design highly suitable for beam-steering applications.

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基于偏振旋转技术的宽带双偏振可重构反射阵

本文提出了一种ku波段的宽带双极化1位可重构反射天线（RRA），该天线采用了一种新型的双层基板和三层金属层的多层单元天线。该设计利用了贴片主导模式下电场的非相位特性和极化转换，实现了两种不同的相位状态，在宽带宽下具有精确的分辨率。两个PIN二极管作为开关，在将x偏振入射波转换为y偏振反射波（反之亦然）的同时，实现状态之间180°的相位差。一个控制信号同时操作两个二极管，大大简化了控制系统。仿真证实了在10 GHz到15 GHz范围内存在180°±2°的相位差。为了探索光束导向能力，制作并测试了一个10 \ × 10$可重构反射阵列原型，每个单元单元连接到直流偏置板上，并通过SPDT手动开关进行控制。测量结果表明，在两个偏振方向下，波束在两个平面上的方向可达50°，1 db增益带宽为13.7% (12.2 GHz-14 GHz)，与模拟结果非常吻合。宽带宽、双极化能力和简化制造的结合使该设计非常适合波束导向应用。

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 Access COMPUTER SCIENCE, INFORMATION SYSTEMSENGIN-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

9.80

自引率

7.70%

发文量

6673

审稿时长

6 weeks

期刊介绍： IEEE Access® is a multidisciplinary, open access (OA), applications-oriented, all-electronic archival journal that continuously presents the results of original research or development across all of IEEE''s fields of interest. IEEE Access will publish articles that are of high interest to readers, original, technically correct, and clearly presented. Supported by author publication charges (APC), its hallmarks are a rapid peer review and publication process with open access to all readers. Unlike IEEE''s traditional Transactions or Journals, reviews are "binary", in that reviewers will either Accept or Reject an article in the form it is submitted in order to achieve rapid turnaround. Especially encouraged are submissions on: Multidisciplinary topics, or applications-oriented articles and negative results that do not fit within the scope of IEEE''s traditional journals. Practical articles discussing new experiments or measurement techniques, interesting solutions to engineering. Development of new or improved fabrication or manufacturing techniques. Reviews or survey articles of new or evolving fields oriented to assist others in understanding the new area.