利用透射编码元表面实现具有圆极化特性的图案可重构天线

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-04-11 DOI:10.1016/j.aeue.2025.155795

Gandham V. Vinod, Vikas V. Khairnar

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引用次数: 0

摘要

本文介绍了一种具有圆极化特性的模式可重构天线。所提议的天线由一个圆极化（CP）源天线元件和作为上基板的透射编码元表面（TCMS）组成。CP 源天线元件采用两种不同的方法设计，分别称为天线 1 和天线 2。天线 1 包括一个带有 3 分贝混合耦合器的双馈 CP 贴片。天线 2 包含一个不等长的横槽，并在源天线下方放置了一个 25 × 25 的人工磁导体 (AMC)。天线 1 和天线 2 均采用 7 × 7 双极化 TCMS 作为叠层。单元单元中使用了三个 PIN 二极管来调节传输。在八种不同的工作状态下，验证了拟议的天线性能，实现了沿 yz 平面的 CP 波束转向。天线 1 可在 -18° 至 22° 范围内实现 CP 波束转向，整体 -10 dB 阻抗带宽为 2.2%，轴向比带宽为 1.7%。天线 2 提供 -34° 至 22° 的 CP 波束转向，带宽更宽，达到 9.5%，轴向比带宽为 7.3%。对所提出的天线进行了制造和测试，结果表明模拟结果与测量结果之间具有良好的一致性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Pattern reconfigurable antenna with circular polarization characteristics using transmissive coding metasurface

In this paper, a pattern reconfigurable antenna with circular polarization characteristics is presented. The proposed antenna comprises a circularly polarized (CP) source antenna element along with transmissive coding metasurface (TCMS) as a superstrate. The CP source antenna element is designed using two distinct approaches referred to as antenna 1 and antenna 2. Antenna 1 includes a dual-feed CP patch with a 3-dB hybrid coupler. The antenna 2 incorporates an unequal-length cross-slot, and a 25 × 25 artificial magnetic conductor (AMC) is placed below the source antenna. Both antenna 1 and antenna 2 feature a 7 × 7 dual-polarized TCMS as the superstrate. Three PIN diodes are used in the unit cell to regulate transmission. The proposed antenna performance is verified in eight different operational states, enabling CP beam steering along the

y z

-plane. The antenna 1 provides CP beam steering from

-

18° to 22°, with an overall

-

10 dB impedance bandwidth of 2.2% and an axial ratio bandwidth of 1.7%. The antenna 2 provides CP beam steering from

-

34° to 22°, offering a wider bandwidth of 9.5% and an axial ratio bandwidth of 7.3%. The proposed antennas are fabricated and tested, showing good agreement between simulated and measured results.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.