To obtain low sidelobe level, tolerance analysis is applied to the antenna array composed by DAUs and the relationship between DAU features and surface planeness error are studied.
为了确保天线低副瓣指标，需要对由DAU拼装形成的天线阵面进行平面度误差分析，并寻求基本拼装单元DAU结构要素与阵面平面度误差之间的联系。
The design and manufacture of planar slotted array antenna have been widely interested for its high gain, low sidelobe, compact size, and light weight which can meet requirements of radar system.
平板裂缝天线可满足雷达系统对天线增益高、副瓣低、体积小、重量轻的要求，所以它的设计和制造已受到普遍关注。
The one-dimensional phased array antenna discussed in this paper needs to radiate a narrow beamwidth and low sidelobe pattern on the horizontal, a sum and difference beam on the vertical.
所设计的一维扫描相控阵天线在方位面具有窄波束、低副瓣特性，在俯仰面实现和差波束。
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