相控阵天线扫描盲点抑制技术研究进展 |
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作者姓名: | 张朝 刘波 |
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作者单位: | 中国空间技术研究院西安分院,西安710000 |
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基金项目: | 青年科学基金项目(编号:61201089) |
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摘 要: | 文章分析了具有接地介质板结构和波导结构的相控阵扫描盲点产生的物理机制,阐述了盲点产生满足的条件.对如何预测扫描盲点位置进行了详述.现有的扫描盲点抑制技术有:(1)子阵技术、(2)背腔技术、(3)DGS技术(Defected Grounded Structure)、(4) EBG技术(Electromagnetic Band-Gap)、(5)电磁超材料技术.文章总结分析了各自的优缺点.
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关 键 词: | 相控阵天线 扫描盲点 表面波 DGS EBG 电磁超材料 |
Advances on the Research of Scan Blindness Surpression in Phased Array Antennas |
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Authors: | ZHANG Chao LIU Bo |
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Institution: | ( China Academy of Space Technology ( Xi'an), Xi'an 710000, China) |
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Abstract: | Physical mechanism of the scan blindness occurrence is analyzed in the grounded substrate and waveguide structures in this paper. The conditions satisfied of the scan blindness occurrence and how to locate it are elaborated. Up to now the following technologies have been proposed: 1 ) sub-array technology 2) cavities technology 3 ) DGS technology 4) EBG technology 5) electromagnetic meta-material technology. Merits and demerits of all above techniques have been summarized. |
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Keywords: | Phased array Scan blindness Surface waves DGS EBG Electromagnetic super-material |
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