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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(28)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。
When the projectile front-end space is occupied by the ballistic correction assembly or seeker, the near-fuze antenna can not be placed on the front of the projectile. Microstrip antenna with a small size, thin profile, easy and aircraft surface conformal, will not undermine its strength and mechanical structure, and can better adapt to its aerodynamic characteristics. In this paper, we design two kinds of horizontal conformal microstrip antennas based on microstrip antennas with different conformal dimensions, and analyze the return loss and the horizontal direction of the antenna. In the structure, the antenna is symmetrically distributed on the cylindrical conformal body. Using the microstrip patch antenna unidirectional radiation mechanism, 360 ° omni-directional radiation is generated on the θ (28) 90 ° plane by optimizing the number of elements. The factors influencing the antenna omnidirectionality are analyzed, including the antenna structure and simulation results, the conformal size and the number of antenna elements. This research has certain reference value for the design of millimeter-wave horizontal omnidirectional microstrip conformal antenna.