三维打印双模后腔宽带双极化空心波导天线阵列

IF 5.8 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-28 DOI:10.1109/TAP.2025.3562915

Qingchun You;Lu Qian;Yi Wang

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引用次数: 0

摘要

本文介绍了一种采用立体光刻（SLA） 3d打印和镀铜技术制备的宽带双极化空心波导天线阵列。提出了一种工作在TE210/TE120和TE410/TE140模式下的双模后腔，以提高阻抗带宽，同时保持稳定的辐射模式。采用菱形辐射槽增强交叉极化隔离，减轻高频增益衰减。天线采用全空心波导馈电网络，便于制造和金属化，同时确保低传输损耗。测量结果表明，分数带宽（FBW）为30.2% (10.7-14.5 GHz)，孔径效率超过72%，极化隔离度高（>50 dB）。

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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3-D-Printed Wideband Dual-Polarized Hollow-Waveguide Antenna Array With Dual-Mode Back Cavity

This article presents a wideband dual-polarized hollow-waveguide antenna array fabricated using stereolithography (SLA) 3-D printing and copper plating. A dual-mode back cavity, operating in TE210/TE120 and TE410/TE140 modes, is proposed to improve impedance bandwidth while maintaining stable radiation patterns. A diamond-shaped radiation slot is introduced to enhance cross-polarization isolation and mitigate high-frequency gain degradation. The antenna employs an all-hollow-waveguide feeding network, facilitating ease of fabrication and metallization while ensuring low transmission loss. The measured results demonstrate a fractional bandwidth (FBW) of 30.2% (10.7–14.5 GHz), aperture efficiency exceeding 72%, and high polarization isolation (>50 dB).

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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