将分形技术和槽加载技术相结合,文中提出了一种基于新型组合加载方式的大频差三频段蝶形天线,其加载方式为开口圆环缝隙和寄生分形多三角形结构(TSFPE)的组合加载。新型天线可同时工作于X/ Ku/ Ka 三个频段,其中,蝶形天线两三角形臂控制X 频段,加载于三角形臂上的开口圆环缝隙和位于蝶形天线三角形臂顶点位置附近的TSFPE 分别控制Ku 和Ka 频段。新型组合加载方式充分合理地利用了天线各部分的空间,减小了各频段之间的互相影响,确保了每个频段的性能。验证了新型组合加载方式的可行性,丰富了多频天线的结构形式和种类。

By using fractal techniques and slot-loading, a tri-band bow-tie antenna at very different frequencies based on novel combination loading has been proposed. The loading mode is a combination of open ring slot and triangular shaped fractal parasitic elements (TSFPE). The proposed novel antenna has good performance at X/ Ku/ Ka bands. The X band is realized by arms of bow-tie antenna, and the open ring slot loaded on the triangular arm and the TSFPE located near the vertex of the triangular arm control Ku and Ka bands respectively. The new combined loading mode makes full use of the space of each part of the antenna, reduces the mutual influence between each band and ensures the performance of each band. The feasibility of the novel combination loading is verified, and the kind of multi-band antenna is enriched.

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