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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Design of defective electromagnetic band-gap structures for use in dual-band patch antennas
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Design of defective electromagnetic band-gap structures for use in dual-band patch antennas

机译：用于双频贴片天线的有缺陷的电磁带隙结构设计

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摘要

Generally, the surface wave of an antenna can be suppressed by integrating the electromagneticrnband-gap (EBG) structures. However, to achieve this effect, the EBGrncells must be reasonably designed, otherwise it may lead to performance degradationrninstead. In this article, a dual-band pinwheel-shaped slot EBG structure is proposed.rnWhen applied to a patch antenna, defects are introduced into 3 rows of the EBG unitrncells. The proposed antenna, incorporating EBGs designed with structural defects, tornradiate at 4.9 and 5.4 GHz is simulated and tested. The measured results show thatrnthe -10-dB bandwidth of the proposed EBG antenna is extended by 41% and 25.4%rnat low frequency and high frequency, respectively. In addition, the peak gain of thernproposed EBG antenna is increased by 2.44 dB at 4.9 GHz and 2.86 dB at 5.4 GHzrnwith >40% efficiency. When compared with the periodic EBG antenna, this antennarnis more effective. Thus, these experimental results show that the performance of thernEBG antenna can be improved by interrupting the periodicity of the EBGs structures.
机译：通常，可以通过集成电磁带隙（EBG）结构来抑制天线的表面波。但是，要实现此效果，必须合理设计EBG细胞，否则可能会导致性能下降。本文提出了一种双波段风车形缝隙EBG结构。当将其应用于贴片天线时，缺陷会被引入到三排EBG单元中。拟议中的天线结合了设计成具有结构缺陷的EBG，并在4.9 GHz和5.4 GHz处辐射。测量结果表明，所提出的EBG天线的-10-dB带宽在低频和高频分别扩展了41％和25.4％。此外，建议的EBG天线的峰值增益在4.9 GHz时提高2.44 dB，在5.4 GHz时提高2.86 dB，效率> 40％。与周期性EBG天线相比，该天线更为有效。因此，这些实验结果表明，可以通过中断EBGs结构的周期性来提高rnEBG天线的性能。

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    Xiaoyan Zhang; Haitao Ma; Aiyun Zhan; Lingfeng Liu; Yan Xie; Yiqiang Yu; Haiwen Liu;

  • 作者单位

    School of Information Engineering, East China Jiaotong University, Nanchang, China,State Key Laboratory of Millimeter Waves, Nanjing, China;

    School of Information Engineering, East China Jiaotong University, Nanchang, China;

    School of Information Engineering, East China Jiaotong University, Nanchang, China;

    School of Information Engineering, East China Jiaotong University, Nanchang, China;

    School of Information Engineering, East China Jiaotong University, Nanchang, China;

    School of Information Engineering, East China Jiaotong University, Nanchang, China;

    School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, China;

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  • 正文语种 eng
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  • 关键词

    defect, dual-band patch antenna, electromagnetic band-gap (EBG);

    机译：缺陷;双频贴片天线;电磁带隙（EBG）;

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