| 用有一定电阻的双曲面设计低旁瓣卡塞格伦天线 |
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| 引用本文： | 林岩. 用有一定电阻的双曲面设计低旁瓣卡塞格伦天线[J]. 微波学报, 2002, 18(3): 78-82 |
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| 作者姓名： | 林岩 |
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| 作者单位： | 桂林空军学院七系,桂林,541003 |
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| 摘 要： | 本文用沿径向有阶梯变化的表面电阻的双曲面来设计低旁瓣卡塞格伦天线 ,给出了双曲面表面电阻值与所需的低旁瓣口径场分布理论值的关系式。计算结果表明 ,只要口径场分布的设计值在低旁瓣口径场分布的理论值上上下波动 ,就能获得与低旁瓣口径场分布的理论值较接近的旁瓣电平和口径利用效率。实测结果与设计结果基本一致。
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| 关 键 词： | 卡塞格伦天线 低旁瓣电平 表面电阻 |
| 文章编号： | 1005-6122(2002)03-0078-05 |
| 修稿时间： | 2001-12-24 |
The Design of Low-Sidelobe Cassegrain Antenna Using Resistive Hyperboloid |
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| LIN Yan. The Design of Low-Sidelobe Cassegrain Antenna Using Resistive Hyperboloid[J]. Journal of Microwaves, 2002, 18(3): 78-82 |
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| Authors: | LIN Yan |
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| Abstract: | The design and analysis of a low sidelobe Cassegrain antenna using resistive hyperboloid are presented in detail.The surface resistivity of hyperboloid can be expressed in terms of the target low sidelobe aperture distribution. Calculation results show that a sidelobe level and aperture efficiency closed to the theoretic ones can be achieved provided the designed aperture distribution is around the theoretic low sidelobe aperture distribution.Measured results have a good agreement with designed results. |
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| Keywords: | Cassegrain antenna Low sidelobe level Surface resistance |
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