文章摘要
郑进鸿,蔡志恂.扭曲面阵模拟分析[J].声学技术,1991,(2):16~22
扭曲面阵模拟分析
An analogue analysis of twisted surface array
  
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作者单位
郑进鸿 国营江宁机械厂 
蔡志恂 国营江宁机械厂 
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中文摘要:
      扭曲面声阵是由若干个法线方向分别从-α1到+α1渐变的长条阵元组成。本文对扭曲阵的指向性进行了计算机模拟分析,结果表明,扭曲阵不仅在两个平面内保持了良好的恒定束宽,而且还克服了弧阵和球冠阵的一些缺点。它能明显改善主波束内的下凹现象。因此扭曲阵是有特色的,有实用价值的高频恒定束宽声阵。
英文摘要:
      The twisted surface array is arranged by several linear strip elements whose normal direction is changed gradually from-α1 to +α1. This paper gives a computer aided analogue analysis of the array's directivity. The analysis shows that the twisted surface array not only keeps a fair constant beamwidth but also overcomes some shortcomings inherent in the curved and spherical cap arrays. Much improvement has been made in the undesired dips on the major beam pattern. This kind of array has its own distinguishing features and can be used as a high-frequency constant beam-width array in practice.
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