一种低姿态双极化超宽带金属天线阵列

2022 IEEE 5th International Conference on Electronic Information and Communication Technology (ICEICT) Pub Date : 2022-08-21 DOI:10.1109/ICEICT55736.2022.9908646

Hangyu Zhang, Zhihui Liu, Hong-bing Sun, Wen Jiang

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引用次数: 0

摘要

提出了一种由低轮廓金属天线组成的双极化超宽带相控阵。该设计允许在VHF-UHF频率下实际实现紧密耦合偶极子阵列(TCDAs)。采用集成金属偶极子和马尔尚平衡设计，保证了天线结构的鲁棒性。偶极子由垂直分量和平面分量组成，具有低轮廓和良好的阻抗匹配性。天线阵列在所有平面上进行±45°扫描时的工作带宽为4.6:1，保持有源VSWR < 3。在E / h面扫描时，正交端口隔离保持在-26 dB以下。阵列的单元间距和剖面分别为0.535λh和0.44λh (λh为自由空间最高工作频率处的波长)。

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A Low-profile Dual-polarized Ultra-wideband Metal Antenna Array

A dual-polarized ultra-wideband phased array composed of low-profile metal antennas is presented. The design allows for practical implementation of the tightly coupled dipole arrays (TCDAs) at VHF-UHF frequencies. Integrated metal dipole and Marchand balun are designed to ensure the antenna structure's robustness. The dipole consists of vertical and planar components, resulting in a low profile and good impedance matching. The antenna array exhibits an operational bandwidth of 4.6:1 for ±45° scanning in all planes, maintaining active VSWR < 3. Orthogonal port isolation remains below -26 dB when scanning in E-/H-planes. The element spacing and profile of the array are 0.535λh and 0.44λh (λh refers to the wavelength at the highest operating frequency in free space), respectively.

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2022 IEEE 5th International Conference on Electronic Information and Communication Technology (ICEICT)

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