电磁异向介质在阵列天线中的应用研究

发布时间：2018-05-30 05:06

  本文选题：微带阵列天线 + 电磁异向介质　； 参考：《电波科学学报》2014年04期

【摘要】：为了抑制阵列天线单元的表面波,并减小阵元间的耦合效应,研究了电磁异向介质材料在抑制阵列天线互耦效应中的应用.基于开口谐振环(Split-Ring Resonator,SRR)负媒质材料特性,将SRR结构单元加载于阵列天线之中,提出了具有互耦抑制效应的天线设计方法.仿真结果表明:加载SRR结构单元后,天线谐振工作频点处的耦合系数降低了8.8dB,即由原来的-16.3dB降低到了-25.1dB,而对天线阵列的增益和方向图没有太大的影响,可以满足工程的基本要求.为设计低耦合的微带阵列天线提供了理论支持.
[Abstract]:In order to suppress the surface wave of array antenna elements and reduce the coupling effect between array elements, the application of electromagnetic anisotropic dielectric material in suppressing the mutual coupling effect of array antenna is studied. Based on the material characteristics of Split-Ring Resonator (SRR) negative medium, the SRR structure element is loaded into the array antenna, and an antenna design method with mutual coupling suppression effect is proposed. The simulation results show that the coupling coefficient at the resonant frequency point decreases by 8.8 dB, from -16.3dB to -25.1dB, but has no great effect on the gain and pattern of antenna array. Can meet the basic requirements of the project. It provides theoretical support for the design of microstrip array antenna with low coupling.
【作者单位】： 北京邮电大学电子工程学院;安全生产智能监控北京市重点实验室(北京邮电大学);北邮-首铁资源网联合实验室;烟台大学光电信息科学技术学院;
【基金】：国家自然科学基金(61202399,61072136,61171051) 北京市自然科学基金(4112039)
【分类号】：TN820
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本文编号：1954036