| 低副瓣天线及多层天线罩一体化仿真 |
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| 引用本文： | 张翼周,阮颖铮.低副瓣天线及多层天线罩一体化仿真[J].重庆邮电学院学报(自然科学版),2004,16(2):57-59. |
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| 作者姓名： | 张翼周 阮颖铮 |
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| 作者单位： | 电子科技大学电子工程学院，电子科技大学电子工程学院 四川成都610054，四川成都610054 |
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| 摘 要： | 多层介质天线罩对机栽天线低副瓣性能有显著的影响，对带罩天线的方向性进行一体化分析有助于机栽天线的优化设计。根据复射线理论，利用复源点远场具有的高斯波束特性，对低副瓣天线的方向图主副瓣进行模拟，随后计入表征主副瓣的各个复源点场在多层天线罩内的反射和透射影响，最后在远区通过叠加所有复源点的透射场而得到带罩天线的远区方向性图。由于复源点场和集合复射线法的简易性，大大简化了带罩天线的理论分析过程，有利于天线及天线罩的整体优化设计。文中以二维圆柱天线罩内的12单元线阵为例，给出了相关的分析和计算结果，证明了文中方法的可行性和简捷性，并得到一些具有参考价值的结论。
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| 关 键 词： | 复射线理论 方向性 低副瓣天线 天线罩 |
Integrated simulation of low sidelobe antennas with radome |
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| ZHANG Yi-zhou,RUAN Ying-zheng.Integrated simulation of low sidelobe antennas with radome[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2004,16(2):57-59. |
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| Authors: | ZHANG Yi-zhou RUAN Ying-zheng |
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| Abstract: | Multilayer radome exerts a tremendous influence on low sidelobe antenna pattern. Integrated directivity analysis of antenna with radome will be helpful to airborne antenna optimization design.In this paper, the Gaussian beam radiated by complex source point (CSP) is used to simulate the mainlobe and sidelobes of low sidelobe antenna. Then, the multireflection and transmission of all CSP fields in the radome are analyzed. Finally, transmission fields of all CSPs are added at the far zone and the pattern of anttena with radome is obtained. A 12-element array in a 2-D cylindrical radome is considered as a numerical example. The computation results show that the method in this paper is feasible and simple for integrated design of low sidelobe antenna with radome. |
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| Keywords: | complex ray theory directivity low sidelobe antenna radome |
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