Wideband Slot Antenna Array With Stable Low-Sidelobe Performance

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-01-20 DOI:10.1109/LAWP.2025.3532116

Fengyuan Zhang;Hanlin Zhang;Qingchun You;Jifu Huang

引用次数: 0

Abstract

This letter presents a dispersion compensation method that integrates a comb-shaped slow-wave structure with a defected ground structure to achieve wideband low-sidelobe performance. This method effectively ensures phase balance within the feed network, achieving a stable low-sidelobe level over a wide frequency range. A prototype planar array antenna operating in the 21.6 GHz to 30.8 GHz range was designed, fabricated, and measured. The experimental results demonstrate that the antenna achieves a fractional bandwidth of 35.1%, with the first sidelobe level maintained below −21 dB across the entire band and a fluctuation confined within ±1.3 dB.

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具有稳定低旁瓣性能的宽带缝隙天线阵列

本文提出了一种将梳状慢波结构与缺陷地结构相结合以实现宽带低旁瓣性能的色散补偿方法。该方法有效地保证了馈电网络内的相位平衡，在较宽的频率范围内实现了稳定的低旁瓣电平。设计、制作并测量了工作频率为21.6 GHz ~ 30.8 GHz的平面阵列天线样机。实验结果表明，该天线的分数带宽为35.1%，整个频带的第一副瓣电平保持在−21 dB以下，波动限制在±1.3 dB以内。

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.