基于ADS和寄生结构的平面圆极化贴片阵列解耦

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

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-10 DOI:10.1109/LAWP.2025.3578658

Boju Chen;Aofang Zhang;Xiaoming Chen

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引用次数: 0

摘要

提出了一种2 × 2圆极化（CP）贴片天线阵列的解耦方法。四个被基板集成波导腔包围的CP天线元件由两层倒角贴片天线组成，并依次旋转90°形成阵列。阵列上方的部分反射面引入了新的耦合路径，抵消了部分耦合波。金属结构作为阵列中心的寄生负载单极子进一步提高了隔离性。实测结果表明，3db轴比（AR）带宽可达5.8%，在3.35 GHz ~ 3.55 GHz范围内隔离度均高于25 dB。最后给出了阵列的有效电压驻波比，验证了解耦方法的有效性。

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Decoupling of Planar Circularly Polarized Patch Array by ADS and Parasitic Structure

A decoupling method for 2 × 2 circularly polarized (CP) patch antenna arrays is proposed in this letter. Four CP antenna elements surrounded by substrate-integrated waveguide cavities consist of two layers of chamfered patch antennas and are rotated through 90° in sequence to form an array. The partially reflective surface above the array introduces a new coupling path, which cancels out a part of the coupled waves. The metal structure serving as a parasitic loaded monopole in the center of the array further improves the isolation. The measured results show that the 3 dB axial ratio (AR) bandwidth can reach 5.8%, and all isolations are higher than 25 dB from 3.35 GHz to 3.55 GHz. The active voltage standing wave ratio of the proposed array is also presented to demonstrate the effectiveness of the decoupling method.

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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.