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本文针对微带天线阵元之间的互耦对辐射特性的影响进行研究,以矩形贴片构成的四单元直线阵为研究平台,导出相应的计算公式,基于时域有限差分法建立天线模型,进行仿真测试,讨论了在不同位置对阵元馈电的情况下,互耦对阵列方向图的影响,为在互耦状态下微带天线阵的设计提供了参考。
In this paper, the influence of the mutual coupling between the microstrip antenna elements on the radiation characteristics is studied. With the four-element linear array consisting of rectangular patches as the research platform, the corresponding calculation formulas are derived, the antenna model is established based on the finite- The simulation test is carried out. The influence of the mutual coupling on the pattern of the array is discussed under the condition of feeding the elements at different positions, which provides a reference for the design of the microstrip antenna array in the mutual coupling state.