毫米波全向共形微带天线设计

发布时间：2018-08-07 17:01

【摘要】：当弹体前端空间被弹道修正组件或导引头占据时,近炸引信天线无法放置于弹体前端。微带天线拥有小体积,薄剖面,容易和飞行器表面共形,不会破坏它的强度和机械结构,且能较好的适应它的空气动力性能的特点。因此本文采用微带天线设计了两种基于不同共形体尺寸的毫米波水平全向共形微带天线,分析了天线的回波损耗和水平面方向图。结构上天线采用了对称的形式均匀分布在圆柱共形体上,利用微带贴片天线单向辐射机理,通过优化单元的个数,在θ=90°平面上产生360度全向辐射。分析了影响天线全向性的因素,包括的天线结构及仿真结果图,共形体尺寸、天线单元数量等,这一研究对毫米波水平全向微带共形天线的设计具有一定的参考价值。
[Abstract]:When the front space of the projectile is occupied by the trajectory correction module or seeker, the proximity fuze antenna cannot be placed in the front end of the projectile. Microstrip antenna has small volume, thin profile, easy to conformal with the aircraft surface, will not damage its strength and mechanical structure, and can better adapt to its aerodynamic characteristics. Therefore, two millimeter-wave horizontal omni-directional conformal microstrip antennas based on different conformal dimensions are designed by using microstrip antennas in this paper. The echo loss and horizontal plane pattern of microstrip antennas are analyzed. In the structure, the antenna is uniformly distributed in a symmetrical form on a cylindrical conformal body. By optimizing the number of elements, the microstrip patch antenna generates 360 degrees of omnidirectional radiation on the 胃 90 掳plane by using the unidirectional radiation mechanism of the microstrip patch antenna. The factors affecting the omnidirectional antenna are analyzed, including the antenna structure and simulation results, the size of the common body, the number of antenna units, etc. This study has a certain reference value for the design of millimeter-wave horizontal omnidirectional microstrip conformal antenna.
【作者单位】：南京理工大学电子工程与光电技术学院;
【基金】：总装预研基金(9140A05030314BQ02071)
【分类号】：TN822

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