一种等边三角形缝隙环宽带天线的设计
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国家自然科学基金资助项目(61673222)

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Design of an equilateral triangular slot ring broadband antenna
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    摘要:

    提出一种带有枝节槽的等边三角形缝隙环结构宽带天线。基于多模谐振原理,将天线馈源设置在三角形缝隙环中非对称位置,同时在三角形缝隙环上对称添加2个枝节槽以便形成更多谐振回路,从而激励出多个模式,得到多模谐振,提高缝隙天线带宽。仿真和实测结果基本一致。实测所设计的天线的阻抗带宽为2.11~3.32 GHz,|S11|<-10 dB,相对带宽达到44.5%;在阻抗带宽内,天线辐射性能良好,方向图具有较好的一致性。该天线可用于LTE 40和41频段无线通信系统中,并且三角形缝隙环结构可以给宽频缝隙微带天线的研究提供一定参考。

    Abstract:

    A wideband antenna which has a structure of an equilateral triangular slot ring with a pair of branch slots is proposed. Based on the principle of multi-mode resonance, the antenna feed is set in the non-symmetrical position of the triangular slot ring, and the two branch slots are added symmetrically to the triangular slot ring in order to form many resonance circuits. Therefore, multi-mode resonance is obtained and the bandwidth of the antenna is improved. The results of simulation and measurement are basically consistent. The measured impedance bandwidth of the antenna is 2.11-3.32 GHz, |S11|<-10 dB, and the relative bandwidth reaches 44.5%. Within the impedance bandwidth, the antenna radiation performance is good, and the direction pattern is basically the same. The antenna can be applied in LTE 40 and 41 wireless communication systems, and the triangular slot ring structure can provide some reference for the research of wideband slot microstrip antenna.

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王友保,张宥诚,郑大鹏.一种等边三角形缝隙环宽带天线的设计[J].太赫兹科学与电子信息学报,2021,19(1):85~89

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  • 收稿日期:2019-09-25
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  • 在线发布日期: 2021-03-09
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