Polarization-Reconfigurable Low-Profile Antenna Array With 2-Bit Phase Resolution for Beam-Scanning Application

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

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-16 DOI:10.1109/LAWP.2025.3579681

Yaohui Niu;Xiuping Li;Wenyu Zhao;Zihang Qi

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引用次数: 0

Abstract

In this letter, a polarization-reconfigurable low-profile antenna array with 2-bit phase resolution is proposed for beam-steering applications. A center-fed, center-symmetric patch is proposed to achieve a compact 1-bit multipolar patch design. Fishbone-shaped slots and interdigital capacitors are introduced to optimize impedance matching and far-field radiation. By integrating the radiating element with a 1-bit feed network, the design enables four types of linear polarization (LP) and dual circular polarization (CP) radiation with 2-bit phase resolution, all within a low-profile structure. As each element enables 2-bit phase and polarization reconfiguration, the array’s beam direction and polarization types can be flexibly controlled by adjusting the coding sequence. Based on the 2-bit polarized reconfigurable element, an 8 × 8 reconfigurable 2-bit antenna array is fabricated and tested to verify the beam-scanning performance of the antenna at the polarization of

$x$

-pol. LP,

$y$

-pol. LP,

$\pm$

$^{\circ }$

-pol. LP, and dual CP, respectively. The measured results agree well with the simulated results.

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用于波束扫描应用的2位相位分辨率偏振可重构低轮廓天线阵列

在这封信中，提出了一种偏振可重构的低轮廓天线阵列，具有2位相位分辨率，用于波束转向应用。为了实现紧凑的1位多极贴片设计，提出了一种中心馈电、中心对称贴片设计。引入鱼骨槽和数字间电容，优化了阻抗匹配和远场辐射。通过将辐射元件与1位馈电网络集成，该设计实现了四种类型的线性偏振（LP）和双圆偏振（CP）辐射，具有2位相位分辨率，所有这些都在一个低调的结构中。由于每个单元可以实现2位的相位和极化重构，因此可以通过调整编码顺序来灵活控制阵列的波束方向和极化类型。基于2位极化可重构元件，制作了一个8 × 8可重构2位天线阵列，并对该天线在$x$-pol极化下的波束扫描性能进行了测试。LP y波尔美元。$^{\circ}$-pol。分别为LP和双CP。实测结果与模拟结果吻合较好。

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.