Dual-Polarized Microstrip Antenna With Single-Dimension-Constraint Resonant Frequency

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-09-30 DOI:10.1109/TAP.2024.3466399

Yongjian Zhang;Peihang Li;Xu Qin;Peiyu Liang;Kunpeng Wei;Yue Li

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引用次数: 0

Abstract

This article proposes an asymmetric dual-polarized microstrip antenna (DPMA) with single-dimension-constraint resonant frequencies for orthogonal polarizations. Different from regular DPMAs, the orthogonal modes of the proposed antenna are only determined by a single dimension, breaking the symmetry limitations of dual-polarized (DP) antennas and leading to the irrelevant dimension for optimized radiation properties of gain and beamwidth. The proposed antenna consists of a vertical-slot-etched rectangular patch with two groups of shorting vias and a horizontal slot on the ground. By feeding two ports with differential or common modes, the antiphase TM10 or antiphase epsilon-near-zero (ENZ) modes are excited for orthogonal polarizations in extremely asymmetric structures. As an application example for mobile terminals, a circular-polarized (CP) antenna with a 90°-phase-step two-way power divider is constructed and integrated onto the upper metal bezel with a high aspect ratio for satellite communications. The measured results show an overlapped bandwidth of 40 MHz and beamwidth beyond 80° in a volume of

$0.39\times 0.026\times 0.0065~\lambda _{0}^{3}$

, exhibiting the unique design approach for DP or CP antennas in extremely asymmetric platforms.

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具有单维度约束谐振频率的双极化微带天线

本文提出了一种非对称双极化微带天线（DPMA），具有单维度约束的正交极化谐振频率。与普通 DPMA 不同，该天线的正交模态仅由一个维度决定，打破了双极化（DP）天线的对称性限制，使增益和波束宽度的辐射特性达到最优化。拟议的天线由一个垂直槽蚀刻矩形贴片组成，贴片上有两组短路通孔，地面上有一个水平槽。通过向两个端口馈入差模或共模，可激发反相 TM10 或反相ε-近零（ENZ）模，从而在极不对称结构中实现正交极化。作为移动终端的一个应用实例，为卫星通信构建了一个带有 90° 相位步进双向功率分配器的圆极化（CP）天线，并将其集成到了高纵横比的上金属边框上。测量结果显示，在 0.39/times 0.026/times 0.0065~\lambda _{0}^{3}$的体积内，重叠带宽为 40 MHz，波束宽度超过 80°，展示了在极不对称平台中使用 DP 或 CP 天线的独特设计方法。

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 Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques