| 引用本文: | 强云飞， 汪 伟， 伍瑞新， 方小川. 非周期性瓦片在有限视场相控阵中的应用[J]. 雷达科学与技术, 2024, 22(6): 607-612.[点击复制] |
| QIANG Yunfei, WANG Wei, WU Ruixin, FANG Xiaochuan. Application of Aperiodic Tiles in Limited Field⁃of⁃View Phased Array[J]. Radar Science and Technology, 2024, 22(6): 607-612.[点击复制] |
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| 摘要: |
| 本文提出了一种基于非周期瓦片（又称“Einstein”瓦片）的天线阵面密铺方法。由于非周期瓦片结构具有天然的非对称性，可以有效抑制大间距稀疏阵面的栅瓣电平。该天线阵面布局的显著优势在于，仅凭一种非周期瓦片便能实现平面阵列的无交叠、无间隙拼接，且无需依赖复杂的优化算法即可实现密铺布局。相比之下，传统周期瓦片的布局通常需要借助复杂的优化算法，这使得本文提出的方法在降低优化成本方面具备明显优势。此外，只需对瓦片内少数天线单元的位置进行优化，即可获得优异的栅瓣抑制效果。对于有限视场扫描雷达而言，本文提出的阵面布局方法极具吸引力。文中详细描述了天线阵面的布局方案及栅瓣抑制度，并通过仿真计算验证了该方法的可行性。 |
| 关键词: 非周期瓦片 栅瓣抑制 有限视场 相控阵天线 |
| DOI：DOI:10.3969/j.issn.1672-2337.2024.06.003 |
| 分类号:TN821+.8 |
| 基金项目:国家自然科学基金（No.61771237） |
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| Application of Aperiodic Tiles in Limited Field⁃of⁃View Phased Array |
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QIANG Yunfei, WANG Wei, WU Ruixin, FANG Xiaochuan
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1. The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China;2. Nanjing University, Nanjing 210023, China;3. Anhui Province Engineering Laboratory for Antennas and Microwave, Hefei 230088, China;4. Queen Mary University of London, London E1 4NS, U.K.
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| Abstract: |
| This article presents a tiling approach for antenna arrays based on aperiodic tiles （also known as “Einstein” tiles）. Due to the inherent asymmetry of the aperiodic tile structure, the grating lobe level of the large spacing sparse array can be effectively suppressed. A significant advantage of the antenna array layout is its ability to realize a fully tiled plane with only one type of aperiodic tiles, achieving seamless tiling without overlaps or gaps, and the dense layout can be realized without relying on complex optimization algorithms, which can simplify the design methodology and enhance the overall performance. In contrast, the layout of traditional periodic tiles usually requires complex optimization algorithms, which makes the method proposed in this paper have obvious advantages in reducing optimization costs. In addition, excellent grating lobe suppression effect can be obtained by optimizing the position of a few antenna elements in the tile, and further enhancing the performance of the antenna array. For scanning radar with limited field of view, the array layout method proposed in this paper is highly attractive. The layout scheme of the antenna array and the grating lobe suppression are described in detail, and the feasibility of the method is verified by simulation calculations. |
| Key words: aperiodic tile grating lobe suppression limited field of view phased array antenna |
