Wideband Circularly Polarized Multimode Horn Array Antenna Using Single Layer E-Plane Waveguide Sequential Feeding Network

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2025-01-13 DOI:10.1002/mop.70076

Zhi Xing Chen, Ali Farahbakhsh, Jiahao Lin, Huafeng Su, Xiu Yin Zhang

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Abstract

This paper presents the design and fabrication of a 4×4 array antenna based on multi-mode horn elements and sequential feeding network. The multi-mode horn antenna is a structure that can suppress grating lobes and side lobe levels by excitation and combining different modes of electromagnetic wave radiation. The sequential feeding network is a technique that can generate circularly polarized radiation from linearly polarized elements by arranging them in a square array with 90° rotations and feeding them with 90° phase difference. The proposed array antenna achieves wideband impedance matching and axial ratio performance, as well as high gain and low complexity. The array antenna operates from 9.9 to 12.6 GHz, with a maximum gain of 24.5 dBi at 11 GHz. The array antenna is fabricated using CNC milling and measured in an anechoic chamber. The measured results agree well with the simulated ones, validating the effectiveness of the proposed design.

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基于单层e面波导顺序馈电网络的宽带圆极化多模喇叭阵列天线

本文介绍了一种基于多模喇叭单元和顺序馈电网络的4×4阵列天线的设计与制作。多模喇叭天线是一种通过激励和组合不同模式的电磁波辐射来抑制光栅瓣和旁瓣电平的结构。顺序馈电网络是一种将线极化单元以90°旋转排列成正方形阵列，并以90°相位差馈电的方法，可以使线极化单元产生圆极化辐射。该阵列天线具有宽带阻抗匹配和轴比性能好、高增益和低复杂度的特点。阵列天线工作频率为9.9 ~ 12.6 GHz， 11ghz时最大增益为24.5 dBi。阵列天线采用数控铣削工艺制作，并在消声室中进行测量。实测结果与仿真结果吻合较好，验证了所提设计的有效性。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication